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Author: Donna Wentworth

What Are The Best Solar Panels?

Written by Donna Wentworth on . Posted in Learning Centre, Solar Panels & System Sizing.

Are you feeling overwhelmed by all the solar panel options in 2024? You’re not alone. With such a flooded solar market it’s hard to know what all the differences are. You’re probably wondering which panels are most efficient? And, how to get the available incentives and rebates.

We are consistently asked what is the best solar panel and why? With years of experience in installing solar and having tried and tested a variety of brands, we want to share our insights with you.

At Lenergy, we offer Aiko Neostar 2P solar panels due to the all black design, efficiency and durability but we know there are many other fantastic solar panel brands available. 

Just a heads-up: we won’t be discussing pricing in this article. The reason is that pricing varies widely depending on several factors, and each solar company has the flexibility to set its own rates. We touch more on this here: Why Do Solar Companies Charge Different Prices For The Same Product.

Instead, we’ll focus on helping you find the best solar panels available by looking at factors like efficiency, durability, and warranty, so you can make an informed decision for your home or business. Lets Dive in:

Overview of the Solar Panel Market in 2024

The solar panel market in NSW for 2024 is both dynamic and innovative, driven by growing awareness of climate change and the push for renewable energy. Manufacturers are continually enhancing their products, focusing on improving efficiency and durability. This year’s advancements centre on photovoltaic (PV) technology, aiming to deliver higher energy output and longer-lasting performance.

  • Higher Efficiency: Modern solar panels now boast efficiency rates exceeding 22%, meaning they can convert more sunlight into usable energy.
  • Durability Improvements: Advances in materials science have led to more robust solar panels that can withstand harsh environmental conditions, from intense UV exposure to severe weather.
  • Smart Solar: Solar Panels integrate with smart technology. This allows for better monitoring and optimisation of energy production.
  • Eco-friendly Manufacturing: There’s a growing emphasis on making solar panels using sustainable methods and materials. This will further reduce the carbon footprint.

Top Solar Panels in NSW for 2024

Before diving into the details, it’s important to know that choosing the right solar panel for your needs goes beyond just efficiency. Factors like durability, special features, warranties, and long-term performance also play a key role. To help you make the best choice, we’ve compiled a list of the top solar panels available in NSW for 2024, highlighting these essential aspects.

In no particular order, here are the best solar panels you should consider:

SunPower Maxeon 7

  • Efficiency: Up to 23%
  • Durability: Engineered to withstand extreme weather conditions with superior resistance to corrosion and breakage.
  • Special Features: Features Maxeon Gen 7 solar cells, offering unmatched efficiency and minimal degradation over time. Known for its high performance in both high and low light conditions, making it suitable for various climates.
  • Warranty: It has a leading 25-year warranty. It covers both products and performance. It ensures high energy production and peace of mind over the panel’s lifetime.
  • Degradation: Guaranteed 88% after 40 years.

Trina Solar Vertex S+

  • Efficiency: Up to 22%
  • Durability: It is designed for high performance and durability. It has excellent resistance to high temperatures and bad weather.
  • Special Features: Utilises advanced multi-busbar technology to enhance light absorption and electrical performance. It is ideal for homes and businesses. This is because it is small and efficient.
  • Warranty: It offers a 25-year product warranty. And a 30-year performance warranty. These ensure long-term reliability and sustained energy output.
  • Degradation: Guaranteed 87.4% after 30 years.

REC Alpha Pure

  • Efficiency: Up to 22.3%
  • Durability: Built to withstand harsh conditions with robust materials and a reinforced frame, ensuring longevity and consistent performance.
  • Special Features: Features heterojunction cell technology (HJT) for higher efficiency and lower degradation rates. Environmentally friendly with a lead-free design.
  • Warranty: It comes with a 25-year product warranty. It also has a 25-year performance warranty. They guarantee strong energy production and reliability over time.
  • Degradation: Guaranteed 92% after 25 years.

Jinko Solar Tiger Neo (N-Type)

  • Efficiency: Up to 22.27%
  • Durability: Excellent resistance to potential induced degradation (PID) and enhanced performance in high-temperature environments.
  • Special Features: Utilises N-Type cells which provide better efficiency, longer lifespan, and lower degradation rates compared to traditional P-Type cells. Ideal for both residential and commercial installations.
  • Warranty: It comes with a 20-25 year product warranty. It also has a 30-year performance warranty. These warranties ensure long-term reliability and energy production.
  • Degradation: Guaranteed 87.4% after 30 years.

Aiko Solar Panels

  • Efficiency: Up to 24.5%
  • Durability: Excellent resistance to potential induced degradation (PID) and robust performance in high-temperature environments.
  • Special Features: Utilises advanced HJT (Heterojunction Technology) cells, which combine the advantages of crystalline silicon and thin-film technologies to achieve higher efficiency and lower degradation rates. Features half-cell technology, improving energy yield and minimising power loss.
  • Warranty: It comes with a 15-year product warranty. It also has a 30-year performance warranty. These ensure long-term reliability and steady energy production.
  • Degradation: Guaranteed 90.6% of initial performance after 25 years and 88.85% after 30 years.

Longi Hi-MO 6 Explorer LR5-54HTB

  • Efficiency: Up to 22.8%
  • Durability: High resistance to potential induced degradation (PID) and optimised performance in high-temperature environments.
  • Special Features: Incorporates advanced PERC (Passivated Emitter Rear Cell) technology, enhancing efficiency and performance in low-light conditions. Features half-cut cell technology, reducing power loss and improving energy yield.
  • Warranty: It offers a 12-year product warranty. It also has a 25-year performance warranty. They ensure reliable long-term performance.
  • Degradation: Guaranteed 84.8% of initial performance after 25 years.

Top 6 Solar Panels Summarised – Source: Lenergy

Country of Manufacture

When choosing solar panels, the country of manufacture can be important to some. Although many people hesitate when they hear “China,” it’s worth noting that most of our phones are made there, and we seldom question this.  

Don’t get me wrong, supporting Australian-made products is important. But, they can be less affordable today in the global market.  For Australian-made solar panels, Tindo Solar produces them locally in small quantities. 

REC manufactures in Norway and Singapore.
SunPower Maxeon manufactures in Mexico, Malaysia, and the Philippines.
Longi, Aiko, Trina, and Jinko manufacture in China.

There are no extra benefits for where the solar panels are made. There is no better customer service or larger degree of quality between the solar panels. This really hinges on personal preference and the price tag. 

Read More About Subcontractors vs In-house Solar Installers here

Government Incentives and Rebates

NSW offers a solar rebate under the Small-scale Renewable Energy Scheme (SRES). This rebate works by awarding you STC’s for the amount of solar panels or size of the system you have installed. The greater the size of the solar system, the more STC’s you will earn. These STC’s have a dollar value of $38.50 per kilowatt. This is then subtracted from your end installation amount.

The distribution of STC incentives is set to cease by the end of 2030, with a gradual decline in the number of STCs awarded per kilowatt installed each year leading up to that point. Installing your system sooner rather than later ensures you can maximise the benefits derived from STCs before their value diminishes further.

Find out more about the solar rebate here

solar rebate

How to Choose the Right Solar Panel

Choosing the right solar panel involves several factors:

  • Energy Needs: You need to determine your home or business’s energy use. This will let you find the size of the solar power system you need. An undersized system can’t cut electricity costs, making it a poor investment. Find out what size system you need here
  • Budget: Balance the initial cost with long-term savings, efficiency, and government incentives.
  • Roof Space: Consider the available roof space and its orientation to ensure greatest sunlight exposure. If you experience shading or have a steep roof pitch, select the type of inverter that will optimise these conditions.
  • Warranty and Support: Look for panels with strong warranties and reliable installer support. Nearly all top solar panels come with at least a 25-year product warranty.

For More Info, Click here

Don’t Overthink It

The differences among solar panels are quite minimal, so choosing a cost-effective option won’t mean missing out on a lot of features.

From a quality and efficiency standpoint, there is nothing wrong with panels made in China. If your budget allows for other countries of manufacture, that’s great. However, don’t let the place of manufacture deter you from going solar.

Now, its time to consider your inverter type to match your solar panels : Microinverters vs String Inverters: Which Is The Best?

How Does A Virtual Power Plant (VPP) Work?

Written by Donna Wentworth on . Posted in Electricity Bills, Tariffs & Energy Plans, Learning Centre.

Did you know by 2050, Virtual Power Plants are projected to supply 30-45% of Australia’s electricity needs. That’s nearly half the country’s energy demand. But why does this matter to you? As Australia moves towards a more sustainable energy future, Virtual Power Plants will play a central role in stabilising electricity prices, reducing carbon emissions, and ensuring a more reliable energy supply. Whether you’re a homeowner, business owner, or just concerned about rising energy costs, understanding a Virtual Power Plant could shape your energy choices for the better in the years to come.

VPP’s may seem like something out of a Sci-Fi film, but they’re much simpler than that. We have years of experience in battery installation, so let us shed some light on this for you. 

With renewable energy on the rise, you might have heard about a Virtual Power Plant. But what are they, and why should you care? Understanding VPPs can help you save money and use energy more efficiently. 

In this article you will learn what a VPP is and how they work, how to go about joining, the requirements and common concerns associated with VPP’s.

What is a Virtual Power Plant (VPP)?

A Virtual Power Plant (VPP) is a network of small power sources like solar panels, wind turbines, and batteries. These are connected and managed together to work like one big power plant. The goal is to balance energy supply and demand, making sure everything runs smoothly. By linking these small power sources, a VPP can provide reliable electricity just like a traditional power plant.

what is a VPP

How Does a Virtual Power Plant Work?

A Virtual Power Plant (VPP) may sound complex, but it’s quite simple when broken down. It uses smart software and communication systems to connect and manage different energy sources, like your solar panels and battery, as one big network. Here’s how it works:

  1. Aggregation
    First, the VPP pulls together (or “aggregates”) many individual energy sources, such as solar panels, batteries, and sometimes even wind power, into a single network. This combination of energy sources acts like one large, flexible power plant. By doing this, the VPP can manage the energy more effectively, making sure it’s available when and where it’s needed.

    Instead of relying on one big power station, we get the power from many smaller sources working together.

  2. Optimisation
    Once the energy sources are connected, advanced software takes over to make sure everything runs smoothly. The software constantly monitors the energy being produced and adjusts it to balance supply and demand.

    For example, during a hot night when a lot of people are using air conditioning, the VPP can draw extra power from batteries to meet that demand. This smart technology ensures that energy is used efficiently, reducing waste and saving money.

  3. Distribution
    Finally, the VPP distributes the energy to where it’s needed most. If the grid needs extra power, the VPP sends energy back to it, helping to prevent blackouts or reduce strain on traditional power plants.

    The energy can also go directly to consumers when the demand is high. This flexibility ensures that every bit of power generated is put to good use, whether it’s keeping your lights on or helping out your neighbours.

This smart system not only helps you save money and earn from your energy, but also plays a role in creating a cleaner, more reliable energy grid for everyone.

how does a vpp work

Benefits of Participating in a Virtual Power Plant

Get Paid For Your Energy

One of the exciting benefits of joining a Virtual Power Plant (VPP) is the potential to earn money by selling your excess energy back to the grid. When your solar panels produce more energy than you need, your battery stores it. Instead of letting that energy sit unused, the VPP can sell it to the grid when demand is high, and you get paid for it! Homeowners on Amber’s VPP have seen the feed-in-tariff go as high as $4/kWh during rare grid events!

The amount you can save annually by using a Virtual Power Plant (VPP) can vary depending on several factors like your energy usage, the size of your solar and battery system, and the specific VPP program you’re part of. 

However, here’s a rough estimate to give you an idea:

Annual Savings: Many homeowners in a VPP save anywhere from $300 to $1,000 or more per year.

Extra Income: Some VPPs pay participants for the energy their batteries feed back into the grid. Depending on your system and location, you could earn $100 to $700 or more annually just from selling excess energy.

In total, combining savings on your energy bill and potential earnings from the VPP, you might be looking at $400 to $1,500+ in annual financial benefits.

This, of course, depends on how your VPP is set up, your energy consumption patterns, and how often the VPP uses your stored energy.

graph showing visually how a Virtual Power Plants works


Environmental Impact

One of the biggest advantages of joining a Virtual Power Plant (VPP) is its positive effect on the environment. By using more renewable energy, like solar power, VPPs help reduce carbon emissions. This means less pollution and cleaner air for everyone. Instead of relying on traditional power plants that burn fossil fuels, a VPP uses the energy your solar panels generate and shares it with others.

In short, by being part of a VPP, you’re helping to make the world greener and supporting a future with cleaner energy for all.

Grid Stability

VPPs also play an important role in keeping the power grid stable. Power grids need to balance how much energy is being used (demand) with how much is available (supply). 

When demand is high, like during heat waves or storms, there’s a greater risk of blackouts and brownouts. But a VPP can help by releasing energy from batteries like yours when it’s needed the most. This helps ensure a steady flow of electricity to everyone, preventing blackouts and brownouts and making sure your home and others always have power. 

In other words, VPPs make sure the grid stays reliable and strong.

Do You Need A Battery To Join A Virtual Power Plant?

While solar panels alone can generate renewable energy, a battery is crucial for storing the excess energy that your solar panels produce during the day. This stored energy can then be used by the VPP to either power your home at night or be sold back to the grid when it’s needed most, like during peak demand times. Without a battery, any unused solar energy is typically sent straight to the grid, and you wouldn’t have the flexibility to store and sell energy as part of a VPP.

However, some VPP programs may allow homes with solar panels alone to participate in a more limited way, but the real benefits of a VPP, such as earning money by selling excess energy or helping to stabilise the grid, come from having both solar panels and a battery.

If you’re thinking about joining a VPP, having a battery will help you maximise the financial and energy-saving benefits!

solar battery installation

Grid Feed-In vs. VPP Payments

While you can get paid for sending energy back to the grid, the key difference with a Virtual Power Plant (VPP) is how and when that energy is sent and the role a battery plays.

Here’s the breakdown:

  1. Timing Matters: In a VPP, the goal is to supply energy during high-demand periods when electricity is most valuable (like during heat waves or peak hours). A battery allows you to store excess energy from your solar panels and release it to the grid at these optimal times. Without a battery, your solar panels only send energy to the grid when they’re producing it—usually in the middle of the day when demand is lower and energy is cheaper. This means the energy is worth less, and you won’t earn as much for it.

  2. Energy Control: VPPs work because they can control when and how much energy your system sends to the grid. A battery gives the VPP the flexibility to manage this flow. Without a battery, there’s no way to control the timing of energy production, which reduces the value of your contribution to the VPP.

  3. Grid Feed-In vs. VPP Payments: When you send solar energy directly back to the grid without a VPP, you typically receive a feed-in tariff—a fixed payment per kilowatt-hour of energy exported. But these tariffs are usually low because the energy is sold during low-demand times. In contrast, VPPs offer higher payments because the energy is stored in a battery and sold when it’s more valuable to the grid.

In short, while you can still be paid for sending energy to the grid without a battery, the payments are lower. A battery in a VPP allows you to maximise your earnings by sending energy when it’s most needed and valuable!

how does a VPP work

How to Join a VPP

The first step in joining a VPP is checking to see if your current solar and battery system is eligible to join and you can do this by:

  1. Check Your Battery Compatibility: Not all batteries can be part of a VPP. Look up your battery model (e.g., Tesla Powerwall, Enphase, etc.) and see if it’s supported by a VPP program in your area. Most VPPs work with specific brands and models.
  1. Look for a VPP Program in Your Area: Virtual Power Plants are available in different regions, offered by energy retailers or VPP-specific companies. Do a quick search for VPP programs in your area (New South Wales, for example, has a few well-known ones).
  1. Check Connection Requirements: VPPs need your system to be connected to the grid and have an internet connection to control when and how your battery feeds power back into the grid. Make sure your system meets these conditions.
  1. Contact Your Installer or Manufacturer: Reach out to the company that installed your system or the battery manufacturer. They can tell you if your setup is ready for a VPP or if any upgrades are needed.

Next you need to select a provider. Research and pick a VPP provider that offers the best benefits for you. Look for those with good customer reviews and strong support. 

And lastly, follow the provider’s steps to sign up for the VPP. This usually involves filling out an application and agreeing to their terms.


Read the full article here

Addressing Common Concerns About Virtual Power Plants

  1. Integration Complexity
    One of the most common concerns people have is thinking that joining a Virtual Power Plant (VPP) is too complicated. The good news is, it’s actually much simpler than it sounds! Most VPP providers are there to guide you through the process. 

    They offer clear instructions, step-by-step support, and resources that make it easy for you to get your system connected. You won’t be left figuring it out on your own, there’s help every step of the way.

  2. Costs and Savings
    Another worry is about the cost. Yes, there may be some initial expenses, but the long-term savings often make it well worth it. By joining a VPP, you could actually earn money by selling excess energy back to the grid. Plus, many solar companies offer financing plans to help you with any upfront costs of your solar installation. 

    In the end, the financial benefits outweigh the initial investment, helping you save more over time.

  3. Reliability and Security
    Some people worry about how reliable and secure a VPP is. Virtual Power Plants use advanced technology to make sure everything runs smoothly and securely. They have strong protections in place to keep your data safe and ensure that your system operates reliably.

    This means you can relax, knowing that your system is both secure and dependable.

Time Is Ticking

Virtual Power Plants represent the future of energy, offering smarter, more efficient, and environmentally friendly solutions. By joining a VPP, you can not only save money on your energy bills but also contribute to a cleaner, more reliable power grid. At Lenergy, we’re here to help you navigate the process and maximise the benefits of renewable energy. Ready to take the next step? Contact us today to find out how a VPP can work for you and start your journey towards a smarter energy future.

Talk To Our Experts Today

Why Do Solar Companies Charge Different Prices For The Same Products?

Written by Donna Wentworth on . Posted in Solar Panels & System Sizing, Uncategorized.

Are you considering solar energy? Have you just received three quotes, all for the same products but at completely different prices? Are you wondering, “Why are these prices so different for the exact same product?”

This is one of the most frequent questions we hear from homeowners like you who are looking to make the switch to solar.

The guy charging a lot seems a bit dodgy, doesn’t he? But before you jump to conclusions, let us, with our years of experience in the solar industry, shed some light on this issue. We typically sit on the more expensive side of solar installations and we’ll share exactly what influences this.

In this article, you’ll discover exactly why some companies charge more or less than others, what drives these price discrepancies, and how to make sense of it all so you can make the best decision for your solar investment.

Access To Solar Brands And Deals

One of the key factors influencing the price you’re quoted for solar products is the access that some companies have with certain brands and the deals they may negotiate with them. Larger solar companies often have the advantage of buying in bulk or establishing partnerships with specific manufacturers. This allows them to secure discounts that smaller companies might not have access to.

Think of it like this: if a company is purchasing hundreds of solar panels at a time, they’re likely to get a better price per unit than a company buying just a few. These savings can then be passed on to you, the customer. However, this doesn’t always mean that the lowest price is the best option. Sometimes, companies might offer lower prices on products that aren’t as high quality or don’t come with the best warranties.

On the flip side, smaller companies might charge more because they don’t have these bulk buying deals in place. However, they might offer more personalised service or use higher-end products that they believe offer better value in the long run. It’s all about understanding what you’re getting for your money.

This variation in access to brand deals is one reason why you’ll see different prices for the same solar products from different companies. But it’s not the only factor at play. Let’s dive into how the size of the company and its overheads can also impact pricing.

Size of the Company

Another significant factor that influences the price you’re quoted is the size of the company and the associated overheads. Larger companies often have more extensive operations, including multiple offices, a larger workforce, dedicated operations managers and customer care teams. These added expenses contribute to higher operational costs, which are often reflected in their pricing. 

For example, a national solar company with a big brand presence needs to charge more to cover its higher overheads. While this can lead to higher prices, it can also mean a more established reputation and potentially better customer service. 

It’s like buying a cup of coffee, you’re not just paying for the coffee beans, milk, and sugar; you’re also contributing the café’s rent, staff wages, and other operational costs.

On the other hand, smaller, local companies might operate with lower overheads. They may have fewer employees, less expensive office spaces, and lower operating costs. This leaner operation can allow them to offer more competitive pricing. However, while lower overheads can lead to lower prices, it’s important to ensure that these companies still offer the quality and reliability you need.

It is also important to consider the longevity of the company. Since 2011, 750 solar companies have gone under and a lot of these were pop up solar companies with no commitment to warehouse rent,  building a customer base or a good reputation. 

In summary, the size of the company and its overheads play a crucial role in the pricing of solar products. While larger companies might charge more due to their extensive operations, smaller companies might offer lower prices due to their leaner setups. But pricing alone shouldn’t be the only factor in your decision; service quality and the company’s reputation are also key considerations.

There are a few ways to see if a solar company is committed to being around for a long time. 

  • Online Reviews 
  • Established Website and Social Media
  • Customer Case Studies
  • Renting Warehouses or Office spaces
  • Company Vehicles

Frequency and Size of Installs

The frequency and size of installations that a solar company handles can also significantly affect the prices they charge. Companies that regularly perform larger or more frequent installations often develop greater efficiencies in their processes. These efficiencies can include streamlined logistics, more skilled labour, and bulk discounts on materials, all of which can lead to cost savings.

For instance, a company that installs solar systems every day may have a well-honed process, reducing the time and labour required for each job. They might also purchase equipment in larger quantities, further reducing costs. These savings can then be passed on to you, resulting in a lower overall price for your installation.

On the other hand, a smaller company that only installs a few systems each month might not have these efficiencies. They may spend more time on each installation or pay higher prices for materials due to smaller order sizes. As a result, their costs, and the prices they charge you, can be higher.

In short, the frequency and size of a company’s installations can influence their pricing strategy. High-volume companies might offer lower prices due to efficiencies, while smaller companies might charge more. Balancing cost with service quality is key when choosing a solar provider.

Now that we’ve covered the main factors that influence solar pricing, let’s move on to what you should consider beyond just the price when choosing a solar company.

What to Consider Beyond Price

While price is an important factor in choosing a solar company, it’s not the only thing you should consider. Focusing solely on cost can sometimes lead to compromises in quality, service, or long-term satisfaction. Here are a few key aspects to weigh alongside the price:

1. Quality of Products and Installation

Not all solar panels and inverters are created equal. Even if two companies are offering the same brand, there might be differences in the model, efficiency, or warranty that can affect the overall performance of your system. 

Additionally, the quality of the installation itself is crucial. A poorly installed system can lead to issues like reduced efficiency or even damage over time, which could cost you more in the long run. When comparing quotes, ask about the specific products being used and the experience level of the installation team.

2. Service and Support

Solar systems are a long-term investment, so it’s essential to choose a company that offers reliable service and support. Consider how responsive the company is to your questions, how they handle after-sales service, and what kind of customer support they provide. 

A company that offers a slightly higher price but excellent service and support might be worth the extra cost, especially if it means peace of mind over the years to come.

3. Warranty and Guarantees

Warranties are another critical factor. A company offering a lower price might cut corners on the warranty, offering less coverage for the panels, inverters, or the installation itself.

 A robust warranty can save you significant money in case anything goes wrong, so it’s vital to understand what is and isn’t covered. Ensure that you’re getting a comprehensive warranty that covers both the equipment and the workmanship.

4. Company Reputation

Lastly, consider the reputation of the company. Look for reviews, testimonials, and case studies from previous customers. A well-regarded company is more likely to deliver a positive experience, even if their quote isn’t the cheapest. 

A solid reputation often indicates reliability, quality, and a commitment to customer satisfaction, all of which are invaluable when making such a significant investment.

5. Subcontractors

The use of subcontractors can also affect pricing. While subcontracting isn’t always a negative, we’ve seen situations where the installation company becomes unreachable when issues arise. We touch on this topic in our article here

Watt a Perfect Match: Solar and Stability.

Choosing a solar company isn’t just about finding the lowest price, it’s about finding the best value for your money. By understanding why prices differ, from brand access and company size to installation efficiency, you’re better equipped to make a decision that balances cost with quality and long-term satisfaction.

What Size Solar System Do I Need?

Subcontractors vs In-house Solar Installers

Written by Donna Wentworth on . Posted in Reviews & Comparisons, Uncategorized.

Stop me if this sounds familiar: “Don’t trust subcontractors for your solar installation.”

 You’ve probably heard it before, right? Yet, those subcontractors are a few thousand dollars cheaper than the company with in-house installers. Now, you’re left wondering if paying that extra money will really get you better service.

This is one of the longest-standing debates in the solar industry, subcontractors vs. in-house installers. If you’re feeling torn between the two options, you’re definitely not alone.

We use in-house installers, but we’re not here to preach that you should only go with in-house teams. While it’s easy to assume that in-house installers guarantee better quality, the reality is more nuanced. Many reputable solar companies use subcontractors and still maintain excellent standards.

In this article, you’ll learn about the differences between in-house installers and subcontractors. We’ll explore their roles, compare quality and accountability, and discuss after-sales support. 

Most importantly, you’ll discover that the key to a successful solar installation lies in choosing a reputable solar company, regardless of their installation method.

Understanding In-House Installers

In-house installers are technicians employed directly by the solar company. These teams are usually on the company’s payroll and work exclusively for them. This employment structure can offer several benefits:

  1. Training and Standards: Since the solar company directly employs these installers, they often receive consistent training aligned with the company’s standards and procedures. This can lead to a uniform quality of work and adherence to best practices.
  2. Accountability: With in-house installers, the company has more direct control over their work. If issues arise, it’s clear who is responsible, making it easier to address and resolve problems quickly.
  3. Communication: Direct communication between the solar company and its installation team can streamline processes and reduce misunderstandings. This can be particularly beneficial during complex installations or when specific customer requirements need to be met.

However, there are some considerations to keep in mind:

  1. Higher Costs: Maintaining an in-house team can be more expensive for the company, which may result in higher costs for the consumer. Salaries, benefits, and ongoing training are significant expenses.
  2. Availability and Flexibility: In-house teams may be limited in size, which can impact their availability. During peak installation times, there may be longer waiting periods for your solar system to be installed.

The Role of Subcontractors in Solar Installations

Subcontractors are independent professionals or teams hired by solar companies to carry out installations. This model has its own set of advantages:

  1. Scalability and Flexibility: Subcontractors allow solar companies to scale their operations quickly to meet high demand. This flexibility means that your solar installation might be completed faster, especially during peak periods.
  2. Cost-Effectiveness: Using subcontractors can reduce overhead costs for solar companies. These savings are often passed on to customers, making installations more affordable.
  3. Specialised Expertise: Subcontractors often work with multiple companies and may bring a wealth of experience and specialised skills to the table. This level of experience can be beneficial for handling hard or unique installation scenarios.

However, potential concerns with subcontractors include:

  1. Variable Quality: Since subcontractors are independent, the quality of their work can vary. Ensuring consistent standards across different subcontractors can be challenging for solar companies.
  2. Accountability and Communication: With subcontractors, there may be more layers of communication. Which can sometimes lead to misunderstandings or delays. Additionally, if issues arise, it can be less clear who is accountable, potentially complicating resolution efforts.
  3. Dependence on Relationships: The success of using subcontractors heavily depends on the relationship and agreements between the solar company and the subcontractors. These companies will have strong relationships with strict hiring process, to ensure high-quality work.

Comparing Quality and Accountability

When it comes to solar installations, quality and accountability are paramount. Both in-house installers and subcontractors can provide high-quality installations. The approach to providing this quality and accountability differs between the two models.

In-house installers typically undergo consistent training programs set by the company. This way all team members work to the same high standards. Since these installers are employees, the company can enforce uniform installation procedures and quality control measures more effectively. Over time, in-house teams can become highly skilled in the company’s specific processes and products, leading to a high level of expertise.

Subcontractors often have extensive experience working with various systems and companies. This can enhance their problem-solving skills and adaptability. Their exposure to different projects can bring great knowledge and innovative techniques. Reputable solar companies have strict hiring processes. This includes ongoing quality checks to ensure subcontractors meet their standards.

In-House Installers:

  • Direct Oversight: The company has direct oversight of in-house teams. Which makes it easier to manage performance and address any issues swiftly.
  • Clear Responsibility: Accountability is straightforward since the installers are direct employees, simplifying conflict resolution and customer support.
  • Customer Trust: Customers may feel more reassured knowing the installers are directly employed by the solar company.

Subcontractors:

  • Contractual Agreements: Subcontractors work under detailed contracts that outline expectations, standards, and accountability measures. This can ensure high performance and adherence to company policies.
  • Reputation Management: Reputable companies closely monitor their subcontractors, requiring regular updates and conducting random inspections to maintain high standards.
  • Customer Feedback: Many solar companies use customer feedback to assess subcontractor performance continuously, making adjustments as needed to ensure customer satisfaction.

After-Sales Service and Support

After-sales service and support are crucial components of a positive solar installation experience. Whether a company uses in-house installers or subcontractors, the key is how well they manage and deliver this support.

In-House Installers

Seamless Support:

  • Integrated Teams: In-house installers are part of the same company that provides customer support. This can mean seamless communication and a cohesive approach to addressing issues.
  • Direct Accountability: If there are any problems post-installation, it’s easier to trace and resolve them. This will lead to quicker resolution times.
  • Consistent Follow-Up: Companies with in-house teams can provide consistent follow-up services, maintenance, and inspections, enhancing customer satisfaction and system performance.

Subcontractors

Managed by Reputable Companies:

  • Dedicated Support Teams: Some reputable solar companies have dedicated customer support teams. These teams look after all the after-sales care, if needed. It is important to ask the company if they offer this.
  • Service Level Agreements (SLAs): Contracts with subcontractors often include SLAs. These specify the level of service and support required, ensuring that customers receive the same high standard of care.
  • Accountability Systems: Good solar companies have robust systems in place to track and manage any issues that arise. This ensures subcontractors are held accountable for their work. And that any customer problems are resolved promptly.

Watch Karen’s full testimonial here

Choosing a Reputable Solar Company

The decision to go solar is significant! So choosing the right solar company is crucial for a successful installation. It is also crucial for long-term satisfaction. Whether a company uses in-house installers or subcontractors, the focus should be on the company’s reputation and commitment to quality. Here’s how you can ensure you’re making the best choice:

Customer Testimonials:

  • Online Reviews: Look for reviews on platforms like Google, SolarQuotes, and other reputable review sites. Pay attention to recurring themes in customer feedback, both positive and negative.


Regarding a well known solar company that exclusively uses subcontractors. We witness this firsthand, when customers come to us after failing to reach their original installer. This ends up costing you twice as much.

  • Case Studies and Testimonials: Many solar companies provide case studies and testimonials on their websites. These can give you a sense of their customer service, quality of work, and overall reliability.

Industry Reputation:

  • Accreditations and Certifications: Check if the company has industry accreditations. Some are approval from the Clean Energy Council (CEC) in Australia. Certifications can show a commitment to high standards.
  • Awards and Recognition: Companies that have received industry awards or recognition often stand out for their quality and service.


Transparency and Communication

Clear Information:

  • Detailed Quotes: A reputable company will provide detailed quotes. These will break down the costs, including equipment, installation, and any additional services.
  • Transparent Contracts: Ensure the contract clearly outlines the terms of the installation and warranties. This is especially important when subcontractors are involved.

Open Communication:

  • Responsive Customer Service: Test the company’s responsiveness by reaching out with questions. Their willingness to provide clear, prompt answers can be indicative of their service quality.
  • Consultation Process: A good solar company will offer a thorough consultation process. Helping you understand your options and tailor solutions to your specific needs.

Warranty and Maintenance:

  • In-House Installers: Companies with in-house teams might offer longer warranties for the workmanship. Maintenance plans might also be easier to manage and integrate.
  • Subcontractors: Reputable solar companies using subcontractors can offer strong warranties and maintenance plans. They ensure that subcontractors adhere to the same standards and honour these commitments.

Customer Feedback:

  • In-House Installers: Feedback can directly influence training and process improvements within the company, leading to better service over time.
  • Subcontractors: Companies that use subcontractors often have rigorous feedback and review systems. Ongoing assessment of subcontractor performance helps maintain high standards and address any issues.

Ultimately, the key to excellent after-sales service lies in the company’s commitment to customer care, regardless of the installation method.

Subcontractors vs. In-House Installers: The Bottom Line

The choice between in-house installers and subcontractors shouldn’t be the main deciding factor. Instead, focus on the overall reputation, quality assurance, and support offered by the solar company. A reputable company, whether using in-house teams or subcontractors, will ensure high standards and excellent customer care.

By choosing a company with a strong track record, transparent practices, and a commitment to quality, you can feel confident in your solar investment. This approach ensures that your installation will be reliable and well-supported, giving you peace of mind.

What Size Solar System Do I Need?

What Size Solar System Do I Need?

Written by Donna Wentworth on . Posted in Learning Centre, Solar Panels & System Sizing.

Have you ever wondered, “What size solar system do I need for my home?” You’re not alone. This is one of the most common questions among Aussie homeowners considering a switch to solar energy. 

With the rising cost of electricity and the increasing awareness of our environmental footprint, more and more Australians are looking to solar power as a solution. But figuring out the right size for your solar system can feel overwhelming.

As a company that has helped countless households transition to solar and we get it, you want to make sure you’re getting the right setup without overspending or undershooting your needs. 

In this article, you’ll learn exactly how to determine the best-sized solar system for your home, ensuring you get the most bang for your buck.

Ready to shine some light on your solar journey? Let’s dive in.

Understanding Your Energy Needs

Before you can decide on the right size solar system, you need to understand your household’s energy consumption. This isn’t as complicated as it sounds. Here’s a simple 3 step guide to help you get started:

  1. Check Your Energy Bills:

Grab your recent electricity bills and look at the “usage” section. This shows how much energy your household uses each day, usually measured in kilowatt-hours (kWh). It’s a good idea to look at bills from different seasons to get an average annual usage since energy consumption can vary throughout the year. (This is also why at Lenergy we request 3 electricity bills in our quoting process.)

  1. Calculate Your Daily and Monthly Usage:

Most bills will show your daily average usage. If not, you can divide your total monthly kWh by the number of days in the billing period. For a more accurate annual estimate, add up your total usage for the year and divide by 365.

Example Calculation:

Suppose your bills show a usage of 2160 kWh for the quarter. 2160kWh ÷ 90 Days in the period = an average daily usage of 24kWh (remember this number we will use it later 🤭).

  1. Consider Future Changes:

Think about any future changes that might affect your energy consumption. Planning to buy an electric vehicle? Adding a pool? Expecting an addition to the family? These changes can increase your energy needs.

Why This Matters:
Understanding your current and future energy needs helps you size your solar system correctly, ensuring it can cover your consumption and maximise your savings. For instance, we would size your solar system from your winter usage as typically, everyone uses more electricity in winter than summer, and this is also when your future system won’t be producing as much. This ensures your usage is matched in winter and that you will be in credit during the warmer months. 

How to Calculate the Right Solar System Size

Now that you know your energy needs, let’s get into the calculation.

Determine Your Peak Sun Hours:
Peak sun hours are the hours during which sunlight is strong enough to generate a significant amount of solar energy. In Australia, this typically ranges from 2 to 7 hours per day depending on your location.

Image edited from original: ktcables.com.au


Calculate the System Size with this simple formula:

System Size (kW) = Daily Energy Usage (kWh) ÷ Peak Sun Hours

​At Lenergy we use a conservative average of 3.6 peak sun hours to determine the approximate size solar system necessary for your needs. This is then cross-checked using our solar designing software.

For example, if your daily usage is 24 kWh and you get 3.6 peak sun hours per day, your system size would be:

Inverter System Size: 24 kWh ÷ 3.6 hours = 6.66kW

So to produce 24kWh per day, you need at least a 6.6kW inverter. 

It is also industry best practice to oversize the inverter up to 33% to account for heat and cable losses and provide a more constant output. 

This means we oversize the solar panels that are paired with the inverter. For example 7.92kW of solar panels on your 6.6kW inverter. 

Customer Case Study:

One of our customers was using 24kW a day and after evaluating their usage, goals and future plans, we sized a 7.92kW system for them.

This tailored solar system came to $7,130.46 with a substantial STC rebate saving of $3,349.50.

Because this system was correctly sized to meet their current usage and future plans, their return on investment is outstanding. The careful sizing ensures they’re not just covered for today’s energy needs, but also prepared for any future increases in usage. As a result, their payback period is impressively short, just 2-3 years. With a remarkable 620% return on investment, they’re seeing substantial financial benefits. 

Additionally, they’re saving $2,339.39 annually on their electricity bills. This means more money in their pocket every year! Investing in the right solar system has proven to be a wise financial decision that offers both immediate and long-term rewards.


Other Factors Influencing Solar System Size

Roof Space and Orientation: 
The amount of roof space you have and its orientation (north, south, east, west) can affect how many solar panels you can install and how efficiently they will produce energy. North-facing roofs are ideal in Australia as they receive the most sunlight throughout the day.

The Angle of Solar Panels:
The ideal angle for solar panels is approximately 30 degrees facing north. For roofs with a lower angle, i.e. 5 degrees, we can either install tilts or increase the system size to compensate for a sub-optimal angle.

Images Taken From a Lenergy Solar Tilt Installation

Available Budget:
Solar systems come in various sizes and prices. Your budget will influence the size and type of system you have installed. Remember, while larger systems have a higher upfront cost, they often lead to greater savings in the long run.  But you don’t have to navigate this alone. That’s why solar companies often recommend starting with a call. We can assess your current and future energy needs, along with your budget, to help determine the optimal size of your solar system.

There are several financing options available to make solar energy more accessible, including $0 upfront payments and low % finance plans. 

Additionally, the recent announcement of the Home Energy Upgrade Finance (HEUF) with Plenti introduces further discounted green loans for solar and battery installations.

A green loan is a financing option specifically designed to support environmentally friendly projects, such as solar and battery installations. These loans typically offer lower interest rates and favourable terms to encourage the adoption of sustainable energy solutions and reduce the environmental impact.

This HEUF  initiative offers homeowners an affordable and attractive way to transition to solar power, ensuring that financial barriers are minimised while maximising the benefits of renewable energy.

Energy Goals:
Are you aiming to be completely energy-independent or just offset a portion of your energy usage? Your goals will dictate the size of your solar system. For example, if you aim to go off-grid or use power at night, you’ll need batteries. 

In addition to the recent announcement of the Home Energy Upgrade Finance (HEUF) with Plenti, starting in November 2024 a home solar battery rebate will launch, making it even more cost-effective to incorporate batteries into your solar system for greater energy independence.

Graphic Images Created By Lenergy

Common Pitfalls and How to Avoid Them

Avoiding mistakes when sizing your solar system is crucial for getting the most out of your investment. Here are some common pitfalls and how to avoid them:

Overestimating Your Needs:
While it’s good to plan for future energy increases, don’t go overboard. Installing a system that’s too large can lead to unnecessary costs and wasted energy.

Underestimating Seasonal Variations:
Energy production and usage can vary with seasons. Ensure your system can handle peak demand during less sunny months. 

Ignoring Shading Issues:
Trees, buildings, and other obstructions can significantly impact solar panel performance. Whether you need a microinverter over a string inverter system will influence your upfront cost, as well as your return on investment. 

Not Accounting for System Degradation:
Solar panels lose efficiency over time. Factor in a slight degradation rate when calculating your system size to ensure long-term performance. Most high-quality solar panels have an annual degradation of approximately 0.4%, which means they will be about 90% efficient after 25 years.

It is important to choose a quality panel that is going to withstand the test of time and the elements and fit your exact location needs. 

Watts Next?

Now that you have a better understanding of how to size the right solar system, you’re in a much better position to make informed decisions. When you receive your quotes, you’ll know exactly what to expect, ensuring that you get the most out of your investment and maximise your savings.

However, the process can still feel overwhelming, and that’s perfectly normal. Consulting with a solar expert can offer personalised advice tailored to your specific needs, giving you peace of mind. They can answer your questions, address your concerns, and help you navigate any uncertainties.

Investing in solar energy is a significant step towards a more sustainable future and financial savings. By correctly sizing your solar system, you’re not just making a smart financial decision, but also contributing to a greener planet.

So, take your time, consult the experts, and rest easy knowing you’re on the right path to a brighter, more efficient future.

Microinverter vs DC Optimisers vs String Inverters

String Inverters vs Microinverters vs DC Optimisers

Written by Donna Wentworth on . Posted in Learning Centre, Reviews & Comparisons.

Are you considering installing a solar system but feeling overwhelmed by the different inverter options? You’re not alone. Many homeowners ask us about the differences between these systems and why they should choose one over the other. With years of experience in installing solar solutions at Lenergy, we’re here to help you understand all your options.

At Lenergy, we provide all three types of inverters because we recognise that every household has unique needs and requirements.

In this article, we’ll compare String Inverters, DC Optimised systems, and Microinverters—looking at their efficiency, installation process, costs, and suitability for various situations. Picking the right inverter is essential to maximise your solar system’s performance and value.

By the end, you’ll have a clear understanding of which system best fits your needs, ensuring optimal efficiency and long-term savings from your solar investment.

What are String Inverters?

String inverters are the most common type in the solar energy market and are known for their affordability.

How they work:
All of your solar panels are connected in a “string” (similar to Christmas lights). The combined DC electricity flows to a single central inverter, which converts it into usable AC power for your home.

Advantages of String Inverters:

  • Cost-effective: Generally, lower-priced than other inverter types, making them attractive for both small and large systems.
  • Simple installation: Fewer components mean quicker, straightforward setup.
  • High efficiency in ideal conditions: Perform well when sunlight is consistent and shading is minimal.

    Disadvantages:

    • Shading sensitivity: Any shading, dirt, or damage on a single panel can significantly reduce the output of the entire string.
    • Limited monitoring: Usually lacks detailed panel-level performance data, making issue detection more difficult.
    • Design restrictions: Require specific panel layouts and orientations, which can limit flexibility—especially on roofs with multiple angles or obstructions.

      Best Use Cases:

      • String inverters are ideal for open spaces with little or no shading. These include homes with simple roof designs that are unaffected by shading, large commercial rooftops or ground-mounted solar farms.
      • Simple Panel Layout. They work well for homes with very simple roof layouts where the solar panels only face up to three separate directions.

      String inverters are reliable and cost-effective for many solar installations. But, shading and layout can greatly hurt their performance.

      Imagine a large, open roof with no shading, this is where string inverters thrive.

      What are DC Optimisers?

      DC optimisers are advanced devices attached to each solar panel, working alongside a central string inverter.

      How they work:

      Each panel is equipped with an optimiser that conditions its power before sending it to the central inverter. This setup improves overall system performance by optimising each panel individually.

      Advantages:

      • Improved shading performance: Reduce shading impacts by ensuring each panel operates at its best.
      • Panel-level monitoring: Accurate detection of issues at the individual panel level, simplifying maintenance.
      • Enhanced energy yield: Increase overall solar energy harvest, especially in partially shaded or multi-orientation rooftops.

        Disadvantages:

        • Higher upfront cost: Adds to the initial investment compared to a basic string inverter system.
        • Longer installation time: Slightly more complex installation process with additional components.

          Best Use Cases:

          • DC optimisers are for places where some panels may be slightly shaded at different times of the day. This includes residential rooftops with chimneys, trees, or other obstructions that may shade sections of the roof.
          • Variable Panel Orientations are well-suited for roofs with many angles or orientations as each panel can be optimised separately.

          DC optimisers offer a great balance of cost and performance. They boost the efficiency and reliability of solar systems in less-than-ideal conditions. They provide great benefits in scenarios where shading or panel orientations would otherwise reduce the system’s overall output.

          What are Microinverters?

          Microinverters are small devices mounted directly on each solar panel, converting DC to AC at the panel level.

          How they work:
          Every panel has its own microinverter, which operates independently of the others, converting the power right at the source.

          Advantages: 

          • Maximum efficiency: Ensures each panel operates at its highest potential, especially useful in shaded or complex roof layouts.
          • Ideal for shaded conditions: Shade on one panel doesn’t affect the others.
          • Detailed monitoring: Track performance at the panel level for precise troubleshooting.
          • Enhanced safety: No high-voltage DC present in the system, reducing fire risk.

            Disadvantages:

            • Higher initial cost: More microinverters mean a higher upfront expense. 

              Best Use Cases:

              • Complex Roof Designs: Microinverters are ideal for installations with multiple roof angles and orientations, as they ensure each panel performs optimally regardless of its position.
              • Shaded Locations: They are perfect for areas where shading varies throughout the day, as each panel operates independently without impacting the rest of the system.
              • High-Performance Monitoring: For those who value detailed performance data, microinverters provide comprehensive monitoring at the panel level, making them a great choice.

              Microinverters are very efficient and flexible. Microinverters are an excellent choice for residential and commercial solar installations with varying conditions. Their ability to optimise each panel independently and provide detailed monitoring ensures maximum energy production and system reliability.

              How are DC Optimisers, String inverters and Microinverters Different?

              Choosing between String Inverters, DC optimisers, and Microinverters involves evaluating many key factors. These include efficiency, performance, installation, maintenance, cost, and safety. 

              Here’s a detailed comparison to help you understand the differences:

              Efficiency and Performance:

              • String inverters are efficient in ideal conditions. But, they suffer performance drops if even one panel is shaded or malfunctioning. The output of the whole string is limited by the weakest panel. It can greatly reduce efficiency.
              • DC optimisers boost efficiency. They do this by letting each panel operate at its best. They reduce the impact of shading on a single panel. They do this by optimising each panel independently. This results in better overall system efficiency in varied shading conditions.
              • Microinverters offer the highest efficiency. They convert DC to AC at the panel. Each panel operates alone. If one panel is shaded or fails, it does not affect the others. This results in superior performance, particularly in installations with mixed shading or orientations.

              Installation and Maintenance:

              • String Inverters: These are the simplest and quickest to install due to fewer components. Maintenance is also straightforward, as there is only one central inverter to manage.
              • DC Optimisers: Have more time-consuming installations. This is due to the extra components attached to each panel. Maintenance can be more involved. But, the panel-level monitoring makes it easy to find and fix specific issues.
              • Microinverters: Much like the DC Optimisers, are more time-consuming to install. This is because each panel requires its own microinverter. However, this allows for easier maintenance and troubleshooting at the individual panel level.

              Cost Comparison of a String inverter, Microinverter and DC optimisers

              – 6.6 kW String Inverter system at Lenergy is: $6,992

              – 6.6 kW DC Optimiser inverter system at Lenergy is: $8,110

              – 6.6 kW Microinverter system at Lenergy is: $10,279

              There is a notable price difference between string inverter systems and microinverter systems. Therefore, it is crucial to have a system that is specifically tailored to your needs.

              Cost Considerations:

              • String inverters: Have the lowest upfront cost. This makes them a good option for budget-conscious installations. However, potential performance losses due to shading can impact long-term savings.
              • DC Optimisers: Higher initial cost than string inverters due to the added optimisers. The better efficiency and performance in shaded conditions can justify the additional expense over time.
              • Microinverters: The highest initial cost due to the need for multiple inverters. The higher upfront cost can be offset by better efficiency, performance, and monitoring. This is especially true in challenging installations.

              Safety and Reliability

              String Inverters are reliable but considered less safe as high-voltage DC electricity runs through the system. Performance issues with a single panel can affect the entire string. Both String and DC optimisers have Arc Fault Detection Devices to minimise their risk.

              DC Optimisers increase safety by reducing the impact of shading and managing voltage at the panel level. They offer better reliability through panel-level optimisation. 

              Microinverters provide the highest safety. They eliminate high-voltage DC electricity, reducing the risk of fires. Their independent operation of each panel ensures excellent reliability and safety.

              Solar Inverters: Turning The ‘Current’ Situation Around

              The most important takeaway is understanding your needs, your home’s capabilities, and your goals. This will help you avoid buying something unnecessary or unsuitable.

              We get it, you’re probably not 7 feet tall with a perfect view of your roof. That’s why we can show you, in real time, any shading issues and discuss which option is best for your roof layout. Here’s a quick summary for you:

              Inverter TypeCostPerformance with ShadePanel IndependenceBest For
              String InverterLowestPoor (one panel affects all)NoUnshaded roofs, same direction panels
              MicroinverterHighestExcellentYesShaded roofs, complex roof layouts
              DC OptimiserMid-rangeGoodYes (to some extent)Partial shading, slight mismatches

              With the above information in your arsenal, you can now understand why one inverter option may be suggested for you. Or know if you’re being led astray.

              Still confused about which inverter is for you? Contact us today and we’d be more than happy to discuss your needs and match them with the right choice! Alternatively check out our recent blog on Which one is right for you.

              Microinverters vs DC Optimisers: Which is Right For You

              Compare The Best Solar Batteries: Tesla vs Enphase vs Sungrow

              Written by Donna Wentworth on . Posted in Learning Centre.

              If you’re a homeowner considering adding battery storage to your solar system, you’ve probably come across different battery brands. Names like Tesla Powerwall 2, Enphase IQ 5P, and Sungrow might sound familiar. Each brand promises to enhance your energy independence, reduce electricity costs, and boost your solar power system’s efficiency. But which one is the best fit for your home?

              At Lenergy, we understand just how overwhelming navigating through these options can be. But don’t worry, we’re here. You don’t have to do it alone. As experts in renewable energy systems and providers of Tesla, Enphase, and Sungrow batteries, we’re here to guide you with confidence.

              In this article, you’ll discover the key features, performance metrics, costs, and user experiences of the Tesla Powerwall 2, Enphase IQ 5P, and Sungrow Batteries.

              By the end, you’ll know which battery system best suits your needs, ensuring you make a well-informed investment for your home.

              Graphic Image Created By Lenergy

              Overview of The Tesla Powerwall 2

              When it comes to home energy storage, the Powerwall 2 by Tesla stands out as a game-changer. This innovative solution not only stores the excess energy generated by your solar panels but also ensures you have a reliable backup during power outages. But what exactly makes the Powerwall 2 so special, and how can it transform your home’s energy management? In this section, you’ll understand its key features, benefits, and potential drawbacks of the Powerwall 2, giving you a clear understanding of why it might be the perfect addition to your solar power system.

              Key Features:

              • Capacity: The Tesla Powerwall 2 offers a usable capacity of 13.5 kWh, making it one of the largest residential batteries available. This capacity is sufficient to power an average home for a day.

              • Power Output: With a continuous power output of 5 kW and peak power output of 7 kW, the Powerwall 2 can handle heavy loads, ensuring that your essential appliances and devices remain powered during outages.

              • Scalability: Multiple Powerwall units can be connected to increase storage capacity, providing flexibility for larger homes or higher energy demands.

              Performance Metrics:

              • Efficiency: The Powerwall 2 boasts a round-trip efficiency of 90%, meaning that 90% of the energy stored in the battery can be used.

              • Lifespan: Tesla offers a 10-year warranty with an expected lifespan of at least 15 years, assuming daily cycling. 

              Installation and Maintenance:

              • Installation: The Powerwall 2 can be wall or floor-mounted, indoors or outdoors, offering versatile installation options. Professional installation is recommended to ensure optimal performance and safety.

              • Maintenance: Minimal maintenance is required. The battery is designed to operate in a wide range of temperatures and is equipped with liquid thermal control to maintain optimal performance, but it is best to keep out of direct sunlight to ensure the battery performance and longevity is not compromised

              Cost:

              • The Tesla Powerwall 2 typically costs around $15,800 including installation fees, with an additional Tesla Powerwall 2 costing around $12,800. The total cost can vary based on the complexity of the installation, the number of phases at the property and additional equipment required.

              The Tesla Powerwall 2 utilises lithium-ion (Li-ion) battery technology with a specific focus on nickel-manganese-cobalt (NMC) chemistry. This combination provides a high energy density, which translates to efficient energy storage and discharge. The NMC chemistry is well-regarded for its stability and longevity, making it a reliable choice for residential energy storage.

              The Powerwall 2 also comes in a strong, weatherproof case. This means it can handle different weather conditions and works well whether you install it inside or outside your home.

              The Best Solar Batteries
              Graphic Image Created By Lenergy

              Overview Of The Enphase IQ 5P

              Choosing the right home energy storage can be difficult. Good thing the Enphase IQ 5P Battery is a cutting-edge solution designed to optimise your solar power system’s efficiency and reliability. Known for its seamless integration with Enphase microinverters, this battery offers robust performance, flexibility, and intelligent energy management. In this section, we’ll explore the standout features, advantages, and any potential downsides of the Enphase IQ 5P Battery, providing you with a comprehensive understanding of why it might be the ideal choice for enhancing your home’s solar energy system.

              Key Features:

              • Capacity: The Enphase IQ 5P offers a usable capacity of 5kWh per battery. While slightly lower than the Tesla Powerwall 2, it can still provide substantial energy storage for daily use.

              • Power Output: It has a continuous power output of 3.84 kW and a peak power output of 7.68 kW. This allows for effective management of household loads during peak times and power outages.

              • Scalability: Like the Powerwall 2, the IQ 5P can be scaled by connecting multiple units, making it adaptable for various household energy needs.

              Performance Metrics:

              • Efficiency: The IQ 5P has a round-trip efficiency of approximately 96%, which means it retains more of the energy stored compared to many competitors.

              • Lifespan: Enphase provides a 15-year warranty with an expected operational life similar to that of the Powerwall 2, ensuring longevity with proper usage.

              Installation and Maintenance:

              • Installation: The Enphase IQ 5P is designed for flexibility with both wall and floor-mount options, and it can be installed indoors or outdoors. Professional installation ensures optimal configuration and safety.

              • Maintenance: The IQ 5P is low-maintenance, designed to operate efficiently across a broad range of temperatures. It incorporates advanced thermal management to sustain performance.

              Cost:

              • The Enphase IQ 5P battery costs around $11,499,  including installation fees. The final price depends on installation specifics and any additional components required for the setup.

              The Enphase IQ 5P uses lithium iron phosphate (LFP) chemistry. LFP batteries are celebrated for their exceptional safety, thermal stability, and long cycle life, making them a robust option for home energy storage. The LFP chemistry provides significant advantages in terms of safety and durability, reducing risks of overheating and extending the battery’s lifespan.

              The IQ 5P is enclosed in a sturdy, weather-proof casing, similar to the Powerwall 2, ensuring it can withstand both indoor and outdoor installations while maintaining reliable performance. However, it employs passive cooling, so keeping it out of direct sunlight is even more important.



              Sungrow Solar Battery
              Graphic Image Created By Lenergy

              Overview of The Sungrow Battery 

              The Sungrow battery is a versatile and robust energy storage solution designed for residential solar power systems. Known for its modular design, the SBR096 offers flexibility and scalability, making it an attractive option for homeowners looking to maximise their energy independence. This battery system is designed to seamlessly integrate with existing solar setups or as part of a fully integrated solar and battery solution, providing a reliable source of stored energy that can be used during peak demand periods or power outages.

              The Sungrow battery also comes with advanced safety features and intelligent management systems. It is equipped with multiple layers of protection, including overcharge, over-discharge, and short-circuit protection, ensuring the safety of your home and the longevity of the battery. The intelligent battery management system (BMS) continuously monitors and optimises the battery’s performance, providing real-time data and diagnostics. This feature not only enhances the safety and efficiency of the battery but also allows homeowners to monitor their energy usage and battery status through a user-friendly interface.

              Key Features of the Sungrow Battery

              • Capacity: The Sungrow battery is modular by design and offers a usable capacity of 3.2 kWh per battery. Starting with a minimum of two battery modules and a storage capacity of 6.4kWh, this capacity makes it a strong contender in the market, providing ample energy storage for daily household use, particularly for those with high energy consumption or larger solar setups.
              • Power Output: The has a starting continuous power output of 3.84 kW, and increases by 1.92kW with each additional module. This high power output allows for effective management of household loads, especially during peak demand times or power outages, ensuring that essential appliances and systems remain operational.
              • Scalability: The modular design of the battery allows for scalability. Homeowners can connect multiple units to increase total storage capacity all the way up to 102.4kWh, making it adaptable to a variety of household energy needs. This flexibility ensures that the battery system can grow alongside your energy requirements.

              Performance Metrics

              • Efficiency: The Sungrow battery boasts a round-trip efficiency of over 95%. This means that a high percentage of the energy stored is retained and usable, reducing energy loss and maximising the benefits of your solar power system.

              • Lifespan: Sungrow provides a 10-year warranty for their battery, with an expected operational life that ensures long-term reliability. Proper usage and maintenance can help extend the battery’s life, providing sustained energy storage over many years.

              Installation and Maintenance

              • Installation: The Sungrow Battery modules are designed with installation flexibility in mind, offering both wall and floor-mount options. It can be installed indoors or outdoors, depending on space and preference. Professional installation is recommended to ensure optimal configuration and safety, taking into account specific household requirements and local regulations.

              • Maintenance: The Sungrow battery is designed to be low-maintenance, operating efficiently across a broad range of temperatures. It features advanced thermal management systems that help sustain performance and protect the battery from temperature-related issues. Routine checks and monitoring via the intelligent battery management system (BMS) ensure ongoing efficiency and safety.

              Cost:

              • The 6.4kWh Sungrow battery system is competitively priced, generally costing around $8,000 to $10,000, including installation fees. The final price may vary based on specific installation requirements and any additional components needed for the setup. This cost-effective solution provides homeowners with a reliable and efficient energy storage option without breaking the bank. 

              Customer Support for Tesla, Enphase & Sungrow

              Now, it’s not enough to compare the features of different battery storages. You should also consider post-installation support. Having the most advanced technology won’t mean anything if you can’t contact anybody when you encounter issues with the product. Post-installation care is an important factor to consider because it ensures you can reach both the installer for general support and the product manufacturers for specific product-related issues.

              Tesla offers comprehensive customer support, accessible through their website, mobile app, and customer service hotline. They provide detailed installation guides, troubleshooting resources, and a responsive support team. 

              Users report that while support is generally good, response times can vary, especially during peak times or when dealing with more complex issues.

              Enphase is known for its strong customer support, with resources available through their website, customer support hotline, and a dedicated mobile app. They offer extensive documentation, including installation manuals and troubleshooting guides.

              Customers frequently praise Enphase for their prompt and helpful support, noting the efficiency and effectiveness of their service team in resolving issues.

              Enphase boasts a call response time of less than 60 seconds, ensuring they answer customer calls within this brief timeframe. We tested this out and were amazed after 40 seconds the call was answered.  

              Sungrow offers comprehensive customer service through multiple channels, including their customer support hotline, their dedicated app, and their official website. This multi-faceted approach ensures that assistance is readily available no matter how you prefer to seek help.

              Much like Enphase, Sungrow includes detailed installation manuals and troubleshooting guides both in their app and on their main website. However, it’s important to note that while Sungrow provides solid customer service, it may not reach the same level of excellence as that of Tesla or Enphase. Tesla and Enphase are often praised for their exceptional customer support, quick response times, and overall user satisfaction. While Sungrow’s customer service is reliable and comprehensive, some users might find it falls slightly short compared to these leading competitors.

              recycling solar batteries
              Graphic Image Created By Lenergy

              Environmental Impact

              As the popularity of battery storage continues to increase annually among homeowners, the demand for recycling processes and facilities has surged. Contrary to popular belief, solar batteries can indeed be recycled in Australia.

              Recent advancements in recycling technology have led to the establishment of several facilities in New South Wales that specialise in recycling lithium-ion batteries, the most common type used in Australia. Furthermore, the elimination of cobalt from new batteries is expected to boost lithium-ion battery recycling. 

              Tes-Amm, one of the leading lithium-ion recycling facilities in Australia, utilises sophisticated technology to separate raw materials, Lithium Carbonate, Cobalt Hydroxide, Sodium Sulfate (by-products), Graphite/Copper/Aluminum, for repurpose.

              These batteries are recyclable not only at the end of their lifespan but also when they need replacing.


              So, What’s Next?

              Only you truly know what you are looking for in a battery system for your home and with the above information, which battery sits right with your needs and circumstances. 

              At Lenergy, we supply  the Enphase IQ 5P, Sungrow and Tesla Powerwall 2, because we believe in all products. So which is the best? It really comes down to your personal preference. And we’re just here to give you premium solar installation services.

              Now it’s time to get the ball rolling on your solar battery installation and start reaping the benefits.

              Still confused about which one is right for you?

              Get in touch today and we can help you figure out the best solar solution for your home or business.

              Solar Battery Rebate 2024

              How Much Money Can You Save With Solar Panels?

              Written by Donna Wentworth on . Posted in Learning Centre, Solar Panels & System Sizing.

              Do you dread seeing your monthly energy bill? With costs steadily rising, you might be wondering if there’s a more affordable and sustainable way to power your home. You’re not alone—many homeowners are facing the same challenge, and in 2024, the answer is clearer than ever: solar energy.

              With our extensive experience in the renewable energy industry, we’ve seen how solar panels can dramatically cut energy costs while helping the environment. But just how much can you save by going solar?

              In this article, you’ll learn about the potential savings solar power offers, supported by the latest data and incentives. We’ll walk you through the financial advantages, explain the impact of government rebates, and show how solar can revolutionise your energy expenses. It’s time to take control of your energy bills and make an informed decision about switching to solar power for your home.

              Find Your Energy Bill Usage

              To truly understand the savings you can achieve through solar energy, you first need to get a clear picture of your current electricity costs. Most households typically face electricity bills between $800 and $1000 per quarter. While this amount can vary depending on your location, usage patterns, and the tariff you’re on, it gives us a solid baseline for calculating potential solar savings.

              To figure out your average energy consumption, simply check your electricity bill, where your usage in kilowatt-hours (kWh) is usually listed on the first or second page. It’s crucial to match your solar system’s size with this usage, as it ensures you get the best return on your investment and a shorter payback period. More on how to calculate your solar system size here

              Speaking of payback periods, this refers to how long it takes for the savings from your solar panels to cover the upfront costs. In 2024, the typical cost to install a solar system for an average home in Australia ranges between AUD $5,000 and AUD $10,000.

              Real Life Savings From Solar

              One of our customers, who was regularly hit with electricity bills nearing $1,000 each quarter, made the smart decision to invest in solar power to reduce their energy costs. Based on their energy usage, we recommended and installed a 13.2kW solar system, which cost $11,765 upfront.

              The results have been nothing short of impressive. Thanks to their new solar system, their annual electricity bill, which once totalled $3,555.99, has been cut by a staggering 95%. This translates to an annual saving of $3,386.21.

              $3,555.99 – $3,386.21 = New Annual Bill $169.78

              It’s also worth noting that electricity bills can vary throughout the year. In fact, during February, their account was in credit due to the excess energy generated by their solar system. This showcases not just the efficiency of the system but also its ability to deliver substantial yearly savings, reinforcing the long-term value of the investment.

              Looking at the bigger picture, the financial benefits of going solar are obvious. With such a dramatic drop in energy costs, the payback period for their system is estimated at 3 to 4 years. After that, the system will continue to deliver savings, providing an impressive return on investment (ROI) of around 719%.

              Moreover, with most solar panels coming with warranties of 25 years or more, this means that after the payback period, they can expect 18 to 19 years of drastically reduced energy costs. And, as electricity prices are expected to keep rising, these long-term savings are likely to grow even further.

              How To Get The Most From Your Solar System

              To get the most bang for your buck with your solar panels, try using more energy during the day when they’re producing power. But we get that might not be an option for everyone because, well, life happens. This is where adding solar batteries can help, storing that energy for later use.

              But what about the Sun Tax? During the daytime, your solar panels often generate more electricity than your household consumes. Without a battery, this surplus energy gets sent back to the grid, and you could now see a small fee applied to this, referred to as the Sun Tax. With battery storage you dodge this small fee as the excess energy is stored for later use. This means you can draw on this stored energy during the evening or on cloudy days, reducing your reliance on grid electricity and further lowering your energy bills.

              Do Solar Batteries Save You More?

              While installing solar panels delivers substantial savings, adding a solar battery can take those benefits even further. Solar batteries store the surplus energy generated by your panels during the day, allowing you to make the most of your solar power even after the sun goes down. 

              Opting into a Virtual Power Plant (VPP) can also shorten your payback period. When your battery is connected to a VPP, the excess energy you store can be fed back into the grid during peak demand. This not only helps stabilise the electricity grid but also allows you to earn extra income through available incentives. In simple terms, a VPP pools energy storage from multiple homes to improve grid stability and lower energy costs for participants.

              And here’s the best part, the new solar battery rebate launching in November 2024 will further reduce upfront costs, making it even more affordable to upgrade your system with a battery.

              Brighte Finance: Green Loans for Solar Panels

              One of the biggest concerns for homeowners considering solar power is the upfront cost. While the long-term savings are impressive, the initial investment can feel overwhelming. Luckily, financial solutions like the Brighte Finance Green Loan are designed to make solar more affordable by breaking the cost into manageable instalments.

              Brighte Finance offers green loans specifically for renewable energy projects, including solar panel and battery installations. This means you can spread the cost of your solar system over small, fortnightly payments, making it easier to manage.

              Here’s how it works: Instead of paying AUD $6,500 upfront for your solar system, you can choose a Brighte Green Loan and spread the cost over 2 to 10 years. For example, you could make fortnightly payments of around $45. This lightens the financial load and aligns with your regular expenses.

              By using a Green Loan to install a solar system, you can replace your high electricity bills with solar repayments, essentially using the savings generated by your panels to cover the cost of the system. In fact, the combination of your loan repayments and new electricity costs is often lower than what you’re currently paying for electricity. So by not making the switch, you could actually end up paying more in the long run. Let’s break it down with a real-life example:

              If you’re spending around $4,000 a year on electricity, a 10.52kW solar system could reduce your bill by 60%, saving you roughly $2,400 annually.
              Add your remaining electricity costs to your $45 per fortnight Green Loan repayments, and you’re still spending far less than your current bill. Without dipping into your savings, you could be over $900 better off each year!
              By the time your Green Loan is paid off, your solar system would have paid for itself, leaving you with substantial savings for years to come.

              Wait Longer, Save Less.

              If you don’t take action soon, you’ll likely face the ongoing rise and unpredictability of electricity bills. With energy prices expected to continue increasing, delaying your switch to solar could lead to higher expenses and greater financial uncertainty. By making the move to solar now, you can stabilise your energy costs, gain more control over your finances, and shield yourself from the fluctuations of the energy market.

              It’s also worth considering the Small-scale Technology Certificates (STCs) rebate, which offers valuable financial incentives for installing solar panels. However, this rebate is set to end in 2030 and will decrease each year until then. This means the longer you wait, the less financial support you’ll receive, making solar installations more costly down the road. Acting now not only maximises your savings on electricity bills but also ensures you benefit from the highest possible STC rebate, significantly lowering your upfront costs.

              Find out more about the STC’s here

              Household Energy Upgrades Fund (HEUF): Everything You Need To Know

              Written by Donna Wentworth on . Posted in EV Charging, Learning Centre.

              Imagine this: you’re sitting at home, feeling the weight of your electricity bills and knowing that your old heating system is not just draining your wallet but also the environment.  You’ve thought about upgrading to solar panels or maybe installing a new battery storage system, but the upfront costs have always put you off. Sound familiar?

              Well, here’s some good news to brighten your day. Plenti Group Limited has just been selected by the Clean Energy Finance Corporation (CEFC) as the inaugural financier for its brand-new $1 billion Household Energy Upgrades Fund (HEUF). This means you now have access to low-cost loans designed to make those dream upgrades a reality. Say goodbye to the old barriers and hello to a more energy-efficient, eco-friendly home.

              In this article, you’ll learn all about the HEUF, how Plenti’s involvement can benefit you, and the simple steps to take advantage of these fantastic loan opportunities.

              Overview of the Household Energy Upgrades Fund (HEUF)

              The Household Energy Upgrades Fund (HEUF) is a groundbreaking initiative by the Clean Energy Finance Corporation (CEFC) aimed at making Australian homes more energy-efficient and sustainable. With a whopping $1 billion in funding, the HEUF is set to provide low-cost loans to homeowners looking to upgrade their energy systems. Whether you’re considering solar panels, battery storage, or other energy-saving technologies, this fund is designed to help you make those upgrades without the financial stress.

              The HEUF focuses on making clean energy more accessible and affordable for everyone. By reducing the upfront costs associated with energy-efficient home improvements, the fund encourages more homeowners to take the leap towards sustainability. It’s a win-win situation: you save money on your energy bills while also reducing your carbon footprint.

              HEUF Discounted Green Loans
              Graphic Image Created By Lenergy

              Plenti’s Role and Selection by CEFC

              Plenti Group Limited, a leader in green finance, has been chosen as the inaugural financier for the HEUF discounted green loans. This is a significant endorsement of Plenti’s commitment to sustainable energy solutions and its expertise in providing affordable financing options. But what does this mean for you as a homeowner?

              Plenti’s involvement ensures that the funds allocated by the CEFC are distributed efficiently and effectively. With a proven track record in green loans, Plenti is perfectly positioned to help you navigate the process of applying for and securing your HEUF discounted green loan. Their selection by the CEFC highlights their reliability and dedication to making clean energy upgrades accessible to all Australians.

              Through Plenti, you can expect a streamlined green loan application process, competitive interest rates, and expert support every step of the way. This partnership is designed to take the hassle out of financing your home energy upgrades, making it easier than ever to embrace a more sustainable lifestyle.

              Homeowners can enjoy significant financial benefits through the HEUF discounted green loans with Plenti, which offer:

              • Up to 2.24% per annum rate discount for purchasing an eligible solar battery system.
              • Up to 2.74% per annum rate discount for purchasing energy-efficient equipment, either with or without a solar battery system.
              • An additional 0.60% per annum rate discount when signing up for a Virtual Power Plant (VPP) through Plenti’s GreenConnect point-of-sale platform.
              • Extended loan terms up to 15 years, five years longer than typical loans, aligning the repayment period with the life of the equipment and making repayments more affordable.

              Combined with the new battery rebate launching in November 2024, this really is the icing on the cake. The financial barriers that once hindered Australian homeowners from installing solar panels or battery storage have been removed!

              Graphic Image Created By Lenergy

              Benefits of HEUF for Homeowners

              So, what’s in it for you? Here are some of the key benefits of the HEUF:

              1. Lower Upfront Costs: The primary barrier to home energy upgrades has always been the initial expense. The HEUF’s low-cost loans significantly reduce this burden, making it feasible for more homeowners to invest in energy-efficient technologies.
              2. Energy Savings: By upgrading your home’s energy systems, you can dramatically cut down your energy bills. Over time, the savings on your utility costs can offset the loan repayments, leading to long-term financial benefits.
              3. Environmental Impact: Switching to renewable energy sources and improving your home’s energy efficiency helps reduce your carbon footprint. You’ll be contributing to a cleaner, greener planet for future generations.
              4. Increased Property Value: Energy-efficient homes are in high demand. Upgrades like solar panels and battery storage can increase your property’s market value, making it a smart investment for the future.
              5. Government Backing: With the CEFC’s endorsement, you can trust that the HEUF is a reliable and beneficial program. This backing ensures that the loans are not only affordable but also supported by a credible institution.

              Types of Upgrades Covered

              The HEUF covers a wide range of energy-efficient upgrades, ensuring that you can tailor your improvements to your specific needs. Here are some of the main upgrades you can finance through the HEUF:

              1. Solar Panels: Harness the power of the sun to generate your own electricity, reducing your reliance on the grid and cutting down your energy bills.
              2. Battery Storage: Store excess energy generated by your solar panels for use during peak times or power outages, maximising your energy independence.
              3. Energy-Efficient Appliances: Upgrade to energy-efficient appliances that consume less power, saving you money and reducing your household’s overall energy consumption.
              4. Insulation and Glazing: Improve your home’s insulation and glazing to maintain a consistent indoor temperature, reducing the need for heating and cooling.
              5. Heating and Cooling Systems: Invest in modern, energy-efficient heating and cooling systems that provide comfort while using less energy, such as air conditioning systems.

              Application Process for HEUF Loans

              Applying for a HEUF discounted green loan through Plenti is designed to be a straightforward and hassle-free process. Here’s a step-by-step guide to help you get started:

              1. Check Eligibility: Ensure that you meet the basic eligibility criteria for the HEUF loan. This includes being an Australian resident and having a good credit history.
              2. Get a Quote: Reach out to approved vendors or contractors to get quotes for the energy-efficient upgrades you’re interested in. This will give you a clear idea of the costs involved.
              3. Apply for the Loan: Your chosen installer will get in touch with Plenti and relay a few details, Plenti will contact you to finalise the information. 
              4. Loan Approval: Once your application is submitted, Plenti will review it and get back to you with a decision. If approved, you’ll receive the loan amount directly to cover your upgrade costs.
              5. Complete the Upgrades: Work with your chosen vendors or contractors to complete the energy-efficient upgrades to your home.
              6. Repay the Loan: Repay the loan in easy, manageable instalments. With the savings on your energy bills, you’ll find that the repayments are more than affordable.

              It’s Time To Start

              With access to discounted green loans, you can now make those much-needed energy-efficient upgrades to your home without the financial strain. Not only will you save money on your energy bills, but you’ll also be making a positive impact on the environment.

              Ready to transform your home into an energy-efficient powerhouse? Don’t wait!
              Get in touch with us today to learn more about how you can take advantage of the HEUF discounted green loans and start your journey towards a greener, more sustainable future. 

              Get My Quote

              How Much Do Solar Panels Cost in 2025?

              Written by Donna Wentworth on . Posted in Learning Centre, Solar Panels & System Sizing.

              You’re exploring the possibility of installing a solar system to reduce your electricity bills. As you dive in, you quickly realise there are countless options, brands, and, most importantly, varying prices. Navigating this landscape can be overwhelming, especially when you’re trying to make a cost-effective and informed decision.

              In this article, you’ll learn about the factors influencing solar panel prices in 2025, the average costs you can expect, and tips for finding quality installers. By the end, you’ll have a clearer understanding of the solar market, helping you make a well-informed investment that maximises your savings and boosts your home’s energy efficiency.

              Pricing Factors For Solar Installations

              Determining an exact price for your solar installation can be challenging without a comprehensive understanding of your needs and site specifics. Several factors can influence the cost, including system size, product selection, roof layout, phase type, shading, to name a few.

              For instance, if your roof layout is more complex or requires a different panel arrangement, installation may take longer and increase the overall price. Additionally, if your property is affected by shading, you would benefit the most from a microinverter system, which tends to be more expensive than a traditional string inverter system. For more information on shading head to our blog on Microinverters vs String inverters.

              how much do solar panels cost
              Microinverter System By Enphase

              Solar System Size:

              The size of the system you need significantly impacts the price. If the system size isn’t matched to your electricity usage, it may not make a noticeable difference in your bills. You might have seen solar panel systems advertised for $2,000 to $3,000 on social media or TV.

              These low prices can be enticing, especially if you’re eager to reduce your energy costs. However, while it is possible to find solar installations in this price range, they might not lead to any substantial savings.

              A system that costs around $3,000 is likely to be smaller and less powerful. If it’s not appropriately sized to meet your energy needs, the savings on your electricity bills may be minimal. Essentially, you could end up investing in a system that doesn’t provide a significant return on investment.

              Typically a good quality solar panel installation will be:

              – 6.6kW system between $6,000 and $9,000.
              – 10kW system between $8,000 and $14,000.
              – 13kW system between $9,000 and $16,000.

              For more information on how to determine your system size see our article here

              Which Solar Products You Choose:

              The variety of solar panels, inverters, and solar brands available can be overwhelming, with options like Jinko, REC, Trina, SunPower, Fronius, Sungrow, Enphase, and SolarEdge…the list goes on. Despite the extensive selection, most of these products perform similarly, with only minor differences.

              Prices often reflect the country of manufacture, which is interesting considering we rarely question where our phones, computers, TVs, or fridges are made. Hint: it’s China. To make things a little easier we have an article comparing the best solar panels for 2024.

              Phase Type At The Property:

              Homes throughout Australia vary in terms of their electrical supply, which can either be single, dual, or three phase. Without bogging you down in the electrically technical side of things, the more phases a property has, the more power can be consumed from the grid and vice versa, the more power can be exported to the grid.

              This difference in electrical supply will dictate whether a single phase or three phase inverter is to be installed. A three phase inverter and cabling is slightly more expensive than the single phase alternative. With dual phase properties, it may also be required to install two single phase inverters with one inverter on each phase, which does increase the overall system cost but is ideal to ensure the solar system produces power equally across phases. 

              Your Roof Layout

              Roof layout will play a key role in the price of your solar installation as the more complex the panel layout needs to be, the more expensive it will be. This complexity also determines whether you need a microinverter system or a string inverter system, as most string inverters come with 2 inputs, known as MPPT’s, two different facing rooftops can be utilised, whereas microinverters offer greater flexibility of design as each individual microinverter operates independently of one another.

              An ideal install type would allow for a straightforward panel layout, with all panels installed as one array, a single story home, on a regular 25-degree pitch, and facing north. This would mean the panels can easily be installed together, with a cost effective string inverter and will maximise sunlight exposure and efficiency.

              If your roof lacks adequate space and panels need to be spread out due to peaks or skylights, the panels may need to be separated into multiple arrays, leading to a slightly longer installation period with multiple roof penetrations, which ultimately increases the price.

              Our solar packages include a “starting from” price, which is based on a straightforward roof layout, single-phase system, and low degree of pitch (25 degrees). These prices are realistic and provide a baseline for simpler installations.

              how much do solar panels cost
              Common Roof Types – Source Homedit.com

              Your Roof Pitch:

              Roof pitch is another determining factor with the price of your solar installation. The roof pitch is the angle or steepness of a roof. It’s important for things like draining rainwater, how the roof looks and its structural integrity.

              A good quality installer will have assessed the roof pitch prior to quoting to ensure adequate access to safely and efficiently install your solar panel system. The steeper the angle of your roof, the harder it is to install safely and as such the longer it takes to install. As you could imagine, walking on a 35 degree pitched roof would be considerably more challenging than a flat roof.

              Single Or Two Story:

              As briefly touched on earlier, a single story home will not add another level (pun intended) of cost for your solar installation. However, if you have a two-storey home, more equipment is needed to safely access the roof, adding complexity and increasing the overall cost for the installation team.

              Tin or Tile Roof:

              Installing solar panels on a tin roof is much simpler compared to a tile roof. Tin roofs do not require modification for the installation. In contrast, tile roofs require individual tiles to be ground down to accommodate the solar racking, making the installation process more complex and time-consuming. 

              There are various types of tiles, each with its own challenges. For example, French terracotta tiles are relatively easy to work with but can disintegrate due to their age. Shingle ceramic tiles are generally more robust but require each tile to be removed and brought down to ground level for modification.

              how much do solar panels cost
              Solar Installation By Lenergy

              Raked Ceilings:

              Raked ceilings, while visually stunning, can limit solar installation due to the reduced internal roof space. Typically, conduits encasing the cabling are run through the roof space or, if there’s room, just underneath the roof sheets.
              For a high-quality installation, these conduits should be hidden within the roof cavity. This approach not only prevents unsightly visible conduits but also ensures the safest installation method. 

              With string inverters, extra care needs to be taken when installing DC cabling from the panels to the inverter. This high voltage cabling comes with much greater regulation and stricter rules which may require the installation of steel conduit in sections where sufficient clearance is not possible from the cabling. 

              how much do solar panels cost
              Solar Installation By Lenergy

              Wi-Fi:

              Wi-Fi is essential for monitoring your solar system. If your system is installed in an area with insufficient Wi-Fi coverage, such as a shed or the back of the house, you won’t be able to connect and monitor your investment to ensure it is functioning properly. This would increase the installation cost, as a Wi-Fi booster may be needed, either provided by you or installed by the solar installer. 

              In-house Solar Installers Or Subcontractors

              Perhaps, you’re now wondering, is it better to hire in-house or are subcontractors just as good? Well, it’s a bit more complicated than that.

              Some solar companies outsource the labour to subcontractors. While this isn’t necessarily a bad practice, it can be a bit of a gamble. The quality of subcontractors can vary greatly; some are excellent, while others may not meet the same standards. Quality control can be inconsistent compared to companies that invest in in-house installation teams. 

              Additionally, subcontractors are often paid per job (on a cost per kW basis), which might lead them to complete the work very quickly, potentially compromising on quality and cutting corners. 

              Head to our article Subcontractors vs In-house Solar Installers for more information on what we think of this topic.

              STC’s (Government Solar Rebate)

              You may have noticed that some solar packages only have slight price variations, which is due to how STCs (Small-scale Technology Certificates) are allocated. These STCs are awarded based on the system size, or the number of panels. For instance, a 15-panel system might receive $2,425.50 in STCs, while a 17-panel system could be awarded $2,579.50 in STCs. The difference between these allocations is only $154. 

              how much do solar panels cost
              Solar Installation By Lenergy

              There Is No One Size Fits All

              Why does one company charge more than another? While we can’t speak for each company’s pricing, we can shed light on possible reasons. A reputable installer considers multiple factors and understands that every situation is unique, ensuring a tailored approach rather than a one-size-fits-all solution.

              This information will help you better understand how solar panels are priced and how to select a reputable installer. Ultimately, it’s about identifying what you want from your solar installation and the results you aim to achieve.

              Next we recommend you decide on what inverter you would like to pair with your solar panels: String Inverters vs Microinverters vs DC Optimisers

              Get Free Quote

              Microinverters vs DC Optimisers: Which is Right For You

              Written by Donna Wentworth on . Posted in Learning Centre, Reviews & Comparisons.

              When evaluating a solar power system for your home or business, choosing the right components can seem overwhelming. Two leading options for managing the energy output from your panels are microinverters and DC optimisers.

              Both systems offer unique advantages and potential drawbacks, and understanding these differences is key to making an informed decision that maximises your system’s efficiency and value.

              With extensive experience in solar energy solutions, at Lenergy, we aim to provide clear, unbiased insights to guide your choice.

              In this article, we’ll explore the differences between microinverters and DC optimisers, compare their performance and costs, and help you determine which option might be best suited to your specific needs.

              Efficiency and Performance Comparison:

              When Microinverters Are the Better Choice
              Microinverters are small devices mounted directly on each solar panel, converting DC to AC right at the source. This approach ensures that each panel operates independently, which is especially beneficial in installations with varying shading or orientations. The AC wiring used in microinverter systems is generally simpler and safer than high-voltage DC wiring, reducing safety risks.

              Microinverters excel at optimizing individual panel performance, leading to higher energy yields, particularly in shading or dirty conditions. They also feature advanced monitoring capabilities, allowing you to track the performance of each panel in real-time—making it easier to identify and resolve issues quickly.

              Overall, microinverters offer a compact, efficient solution that maximizes energy production at the panel level.

              The downside? They tend to be more costly upfront compared to central inverters or DC optimisers.

              microinverters vs dc optimisers

              When DC Optimisers Are The Better Choice
              DC optimisers are devices attached to each solar panel that improve the efficiency of the system by conditioning the output before sending it to a central inverter. While they don’t convert DC to AC at the panel, they optimize performance at the panel level, mitigating the effects of shading and mismatched panels.

              This panel-level optimisation ensures each panel contributes its maximum power, boosting overall system performance—especially in conditions with intermittent shading or uneven panel orientations. The system then combines the power and converts it at a single, high-capacity central inverter, often resulting in lower initial costs compared to microinverters.

              Limitations: If the central inverter fails, the entire system is affected. Also, in complex roof designs or heavily shaded environments, DC optimisers may not perform as well as microinverters.

              microinverters vs dc optimisers

              Microinverter VS DC Optimiser, Comparative Analysis

              • Shading and Orientation: Microinverters generally perform better in installations with significant shading or varying panel orientations. Their independent operation ensures that one panel’s issues don’t affect the others.
              • Energy Yield: Both systems can increase energy yield compared to traditional string inverters, but microinverters tend to provide a slight edge in scenarios with partial shading or complex installations.
              • Monitoring and Maintenance: Microinverters offer superior monitoring capabilities, making it easier to pinpoint and address specific panel issues. DC optimisers also offer panel-level monitoring but are dependent on the central inverter for overall system performance.
              • Cost Efficiency: DC optimisers typically have a lower initial cost than microinverters, which can be a deciding factor for budget-conscious installations. However, the higher efficiency and energy yield of microinverters can offset the initial investment over time.
              • Safety: Microinverters offer safer installation and maintenance conditions by using lower voltage AC wiring throughout the system. DC optimisers use higher voltage DC wiring, which can pose greater safety risks.
              Graphic Image Created By Lenergy


              When Microinverters Are The Better Choice

              Microinverters
              Microinverters are particularly well-suited for certain types of installations and conditions.
              Here are some scenarios where microinverters might be the better choice:

              Complex Roof Designs:

              • Varied Orientations: If your roof has multiple angles or orientations, micro inverters can optimise each panel individually, ensuring maximum energy production regardless of the panel’s position.
              • Shading Issues: In environments where shading from trees, chimneys, or other buildings is a concern, microinverters allow each panel to function independently, minimising the impact of shading on the overall system performance.

              Smaller Installations:

              • Limited Space: For smaller installations where every panel counts, microinverters can maximise the efficiency of each panel, making the most out of limited space.
              • Future Expansion: Microinverters make it easier to expand your solar system in the future. You can add more panels without worrying about matching the string inverter’s capacity.

              When DC Optimisers Are The Better Choice

              DC Optimisers
              DC Optimisers are also advantageous in various scenarios, particularly for larger systems and installations with less complex shading issues:

              Larger Installations:

              • Cost Efficiency: For larger systems, the lower initial cost of DC optimisers can be a significant advantage. They offer many of the benefits of panel-level optimisation without the higher cost of microinverters.
              • Centralised Management: Having a central inverter can simplify system management, making it easier to monitor and maintain large arrays.

              Uniform Roof Designs:

              • Consistent Sunlight: In installations where the roof has a uniform design and receives consistent sunlight throughout the day, DC optimisers can enhance efficiency without the need for the higher cost of microinverters.
              • Minimal Shading: For environments with minimal shading, the benefits of micro inverters are less pronounced. DC optimisers can provide sufficient optimisation without the added expense.

              Which Is Better In Shade

              Flexibility and Scalability:

              • Microinverters: Offer greater flexibility for expanding systems and adapting to complex roof designs. Ideal for installations that may need future modifications or expansions.
              • DC Optimisers: Suitable for large-scale installations with a consistent design. Easier to manage and maintain in large arrays due to the centralised inverter.

              Performance in Shading:

              • Microinverters: Perform better in shaded environments due to their ability to optimise each panel independently.
              • DC Optimisers: Still provide improved performance over traditional string inverters but may not be as effective as microinverters in heavily shaded conditions.
              microinverters vs dc optimisers

              So, Watt Will It Be?

              You’re probably thinking, “Microinverters and DC optimisers sound quite similar.” And you’re right, they do share many similarities. Of course, dedicated microinverter or DC optimiser installers might have strong opinions favouring one over the other. However, at the end of the day, the choice really hinges on what will best suit your home and energy needs.

              You also don’t have to make this decision alone! At Lenergy we offer both Microinverters and DC Optimisers as we know that not every household is going to fit into one option. We are here to help you make the choice between the two with a free consultation.

              Ready to take the next step? Contact us today, and let’s start designing a solar system that perfectly meets your needs and maximises your energy savings!

              Get Free Quote

              Sun Tax: What Will It Cost? Everything You Need To Know

              Written by Donna Wentworth on . Posted in EV Charging, Learning Centre.

              Are you worried about the so-called “sun tax” and its impact on your solar investment? You’re not alone. With media reports amplifying fears about the new solar export charges, many homeowners are questioning whether solar panels are still a smart choice. But here’s the thing: the sun tax might not be as bad as you think. 

              In this article, you will learn what the sun tax really is, how much it will affect you, and why solar energy remains a wise investment despite the new charges.

              What is the Sun Tax?

              The “sun tax” refers to new solar export charges being introduced to help manage the increasing amount of solar energy flowing back into the electricity grid. These charges are part of a two-way pricing system designed to balance the benefits of solar energy with the costs of maintaining grid stability. Essentially, homeowners with solar panels will be charged a small fee for the electricity they export back to the grid during peak periods when the grid is under stress.

              Sun Tax

              Media Hype vs. Reality

              The media has sensationalised these charges, leading to widespread concern among current and prospective solar panel owners. Headlines have focused on the potential costs without providing the full context, creating a sense of panic. In reality, the charges are relatively modest and are designed to encourage more efficient use of solar energy rather than to penalise solar panel owners.

              For example, according to SolarQuotes, the fees could be as low as 2 to 3 cents per kilowatt-hour during peak times. This is a manageable cost considering the overall savings from generating your own electricity.

              As has been the case for quite a few years now, you get the most benefit from solar by using the power you generate throughout the day as opposed to donating it to the grid for an abysmal 7c/kWh. When the ‘sun tax’ comes into effect, programming the inverter to limit power going to the grid and avoid any export charges, is a simple and easy task. This way, instead of getting next to nothing for feeding excess power to the grid, you’ll just get nothing for it. So the financial benefit of solar doesn’t really change too much. Previously, exporting power to the grid and generating a small credit was a nice-to-have, but not really anything to write home about.

              The key takeaway is that while these charges introduce a new cost, they do not eliminate the financial benefits of having solar panels.

              Sun Tax
              Graphic Image Sourced from Google

              How Will the Sun Tax Affect My Solar Savings?

              One of the most common questions we hear is: “Is the sun tax going to wipe out the savings from my solar panels?” The short answer: No, it won’t. We know the term “sun tax” might sound worrying at first, but the actual cost impact is much smaller than people expect. Here’s why:

              1. Modest Fees: The export charges during peak times are relatively low.

              Here’s the simple math:

              • Charge Rate: About 2 to 3 cents per kilowatt-hour (kWh) during peak times.
              • Example: If your system exports 5 kWh per day, that’s roughly 10 to 15 cents per day.
              • Over a month, it adds up to $3 to $4.50.

              Compare that to the $1,000 to $1,500 per year most households save with solar, and the fee becomes quite minor.

              2. Net Savings: Even with the sun tax, the net savings from solar panels remain significant. For instance, a typical household with a 6.6 kW solar system can save between $1,000 and $1,500 annually on electricity bills. Subtracting the potential annual export charges of around $50 to $100 still leaves you with substantial savings.

              3. Return on Investment (ROI): The return on investment for solar panels continues to be strong. With or without the sun tax, the payback period for most solar installations remains within 3 to 5 years, depending on system size and local electricity rates. After the payback period, the savings continue to accumulate, making solar panels a financially sound investment over their 20-25 year lifespan.

              Why Solar is Still a Good Investment

              The sun tax might sound like a big deal, but in reality, solar panels remain a great investment because:

              1. Long-term Savings: Solar panels significantly reduce your electricity bills, providing long-term savings that far outweigh the modest export charges. With rising electricity prices, generating your own power becomes increasingly valuable.

              2. Environmental Benefits: Investing in solar energy helps reduce your carbon footprint. By generating clean, renewable energy, you contribute to the fight against climate change and support a sustainable future.

              3. Energy Independence: Solar panels provide energy independence by reducing reliance on the grid. This is particularly beneficial during power outages or periods of high electricity prices.

              4. Increased Property Value: Homes with solar installations are often valued higher and can sell faster than those without. Potential buyers recognise the long-term savings and environmental benefits of solar energy.

              Sun Tax
              Image Taken By Lenergy

              How Can I Reduce the Impact of the Sun Tax?

              While the sun tax introduces a new cost for solar panel owners, there are several strategies you can employ to minimise its impact and maximise your savings.

              1. Use More Power When the Sun Is Shining

              The simplest way to avoid export charges is to use more of your solar power yourself instead of sending it back to the grid.

              How?

              • Run appliances like dishwashers, washing machines, and air conditioners during the day.
              • Charge devices and electric vehicles while the sun’s out.

              Why it works:
              The less energy you export, the fewer charges you’ll pay.

              2. Consider Battery Storage

              Installing a solar battery lets you store extra energy during the day and use it at night or when the weather’s bad.

              Benefits:

              • Avoid export fees.
              • Reduce reliance on the grid.
              • Lower your power bills even further.

              Yes, batteries cost upfront, but over time, they can boost your savings and give you more energy independence.

              3. Upgrade to Smart Inverters

              Smart inverters control how your solar system uses and distributes power:

              • They prioritise using your solar energy first.
              • They can direct extra energy to your battery (if you have one) instead of exporting to the grid.

              This keeps export fees down and ensures you get the most value from your system.

              4. Use Energy Monitoring Tools

              Knowledge is power (literally)!

              By using energy monitoring apps and tools, you can:

              • See when your system produces the most energy.
              • Track how and when you’re using electricity.
              • Make adjustments (like shifting appliance use) to reduce exports and maximise self-consumption.

              5. Join Energy Trading Programs

              In some areas, you can sell your excess solar power directly to other consumers or businesses through energy trading platforms.

              Why this matters:

              • You may get better rates for your exported power than the standard grid feed-in tariff.
              • It can help offset or even cancel out the sun tax charges.

              Don’t Believe The Hype

              The sun tax doesn’t have to cut into your savings. Understandably, as a homeowner or potential solar panel buyer, it can be worrying to know that you’d have to “pay more.” However, proper context matters! The financial impact of these charges is still relatively minor compared to the overall benefits of solar energy. With the right strategies, you can reduce export charges, keep your bills low, and make the most of your solar investment.

              Solar energy remains a smart investment, offering long-term financial benefits, environmental advantages, and increased energy independence. Don’t let the fear induced by media reports stop you from considering or continuing your solar journey. With the right approach, you can navigate the new charges effectively and continue to reap the rewards of clean, renewable energy.

              Still unsure how the sun tax would affect your situation?
              Let’s walk through your numbers together — so you can make the most informed decision.