Do Solar Batteries Affect Home Insurance in NSW? What You Need to Know
Solar batteries are becoming more common in NSW as rebates expand, electricity prices rise, and battery technology improves. With more households moving faster on battery decisions—especially following changes to the Cheaper Home Batteries Program—questions about insurance are coming up earlier and more often.
From an insurance point of view, solar batteries are no longer unusual. However, they do need to be handled properly. Insurance issues with solar batteries are almost always administrative, not technical.
This article will give you a straightforward explanation of how solar batteries affect home insurance in NSW, what usually changes (and what doesn’t), what insurers actually care about, and how to stay properly covered.
Lenergy is not an insurance provider or insurance broker. The information in this article is general in nature and has been compiled from publicly available insurer websites and industry guidance at the time of writing. Insurance policies, terms, and conditions vary between providers and individual circumstances. You should always review your Product Disclosure Statement (PDS) and confirm details directly with your insurer to ensure your solar battery is appropriately covered.
Do you have to tell your insurer about a solar battery?
Short answer: yes.
In NSW (and Australia-wide), a solar battery is considered a material change to your home. It’s a fixed electrical system, permanently installed, and often worth $8,000–$20,000+. If it isn’t disclosed, your policy can be based on the wrong building value.
What happens if you don’t tell them?
A simple example:
- Your home is insured for $650,000
- You install a $15,000 battery
- The battery isn’t declared
- A storm causes $200,000 in damage (unrelated to the battery)
In a major claim, the insurer can argue the home was underinsured and reduce the payout proportionally—even though the battery didn’t cause the damage.
When should you notify your insurer?
The safest approach is:
- Notify them after installation is complete
- Provide the final invoice and system value
- Do it before your next renewal
In many cases, the insurer simply notes the battery and updates the sum insured.
Is a solar battery covered under building insurance or contents insurance?
In most NSW policies, a solar battery is treated as part of your building, not your contents.
Insurers generally classify items as a part of your building if they are:
- permanently fixed
- hard-wired
- not removable without tools or licensed trades
Solar batteries meet all three criteria.
Why this matters
A common mistake is increasing contents insurance while leaving the building sum insured unchanged. If the battery value isn’t included in the building figure, underinsurance can still apply.
For practical purposes, if your battery was installed by a licensed electrician and connected to your switchboard, assume it belongs under building insurance.
Will your insurance premium go up?
Sometimes—but usually for simple reasons.
What actually drives premium changes
1. Replacement value
If the battery increases the rebuild value of your home, the sum insured may need to rise.
For example:
- Building sum insured: $700,000
- Annual premium: $1,850
- Battery installed: $14,000
- New sum insured: $714,000
- Premium increase: $25–$60 per year
2. Risk profile
Insurers focus on:
- licensed installation
- Australian Standards compliance
- correct placement and ventilation
A compliant installation rarely changes premiums.
3. Policy structure
Occasionally, excesses or wording are adjusted—but this is uncommon.
When premiums usually don’t change
- The battery value is small relative to the home
- The policy already had a realistic rebuild estimate
- The installation is standard and compliant
NSW home insurance comparison: how major insurers typically treat solar batteries
Below is a practical, NSW-focused comparison showing how major insurers usually treat solar batteries. Policies vary, so always confirm with your insurer.
Notes on the links and sources
- Insurers rarely publish battery-specific wording. Batteries are treated under fixtures, electrical systems, and solar installations.
- Insurers that explicitly confirm solar panel coverage apply the same logic to fixed batteries.
- Underwriters focus on compliance and documentation, not brand or chemistry.
What this table tells you (and what it doesn’t)
Across mainstream insurers:
- Solar batteries are usually covered
- They’re treated as part of the building
- Disclosure is expected
Differences appear in compliance assessment and how undeclared upgrades are handled in claims.
What insurers are not usually worried about
Insurers are generally not focused on:
- battery brand
- chemistry debates
- scare headlines
They care about:
- licensed installation
- Australian Standards compliance
- correct placement and ventilation
- accurate insured value
What insurers may ask you for
Keep these on file:
- final invoice
- installer details
- compliance paperwork
- battery model and capacity
- a few photos of the installed system
These documents usually resolve claims quickly.
What insurance doesn’t cover
Insurance covers events, not product failure.
Covered:
- storm, fire, impact, vandalism
Not covered:
- performance degradation
- internal faults
- software issues
These fall under manufacturer warranties or installer responsibility.
Battery safety, fire risk, and compliance
Batteries must not be installed in habitable rooms. In NSW, this is a compliance issue, not just an insurance one.
Insurers expect batteries to be installed:
- in garages
- on external walls
- in compliant enclosures
- Click here for further information on installing your battery within the correct regulations
Modern batteries with proper Battery Management Systems and compliant installs are not treated as high-risk assets.
Common battery buying mistakes that cause insurance problems
- Choosing price over compliance
- Not confirming installation location
- Under-declaring system value
- Assuming installers notify insurers
- Losing documentation
Avoiding these mistakes prevents most insurance issues.
Final checklist for NSW homeowners
- Confirm compliant installation location
- Use licensed, accredited installers
- Keep invoices and paperwork
- Notify your insurer
- Update building sum insured
Want to know more about batteries?
If you’re looking to understand whether a solar battery is right for your home—or want help ensuring it’s installed compliantly and without insurance headaches—you can reach out to Lenergy.
Our solar specialists work with quality, compliant battery installations every day and can walk you through battery options, installation requirements, rebates, and what to tell your insurer once it’s installed.
