Across Australia, insurance premiums are rising as extreme weather events become more frequent and more costly. Floods, cyclones, bushfires and severe storms have pushed insurers to reassess risk, particularly in regions that face repeated disasters.
Queensland (QLD) offers one of the clearest examples. Rebuilding roads, repairing homes and restoring infrastructure after major weather events has become a recurring part of the economic cycle. In some commentary, this pattern has been described as a “prepare and repair” economy, where communities must repeatedly invest in recovery and resilience.
That reality raises a practical question for homeowners. Insurance can cover damage once a disaster has happened. It cannot keep the lights on when power lines go down or substations flood. As outages become more common during extreme weather, some households are beginning to look beyond traditional protection.
Solar panels and home batteries are increasingly being discussed in that context. They are still installed primarily to cut electricity bills, yet they can also provide something insurance cannot: power during disruption.
Why insurance premiums are rising
Home insurance is becoming more expensive in many parts of the country, particularly in regions exposed to repeated floods, cyclones, and severe storms.
Over the past decade, insurers have paid out billions after major weather events. Each disaster increases the cost of rebuilding homes, repairing infrastructure, and replacing damaged contents. At the same time, construction costs have climbed, meaning every claim is now more expensive to settle than it was even a few years ago.
The impact is most visible in northern Australia, where homeowners face some of the country’s highest premiums due to cyclone and flood risk. For insurers, these changes are a pricing problem, while for households, they are a cost-of-living problem. But insurance only addresses one part of the issue. It helps repair damage after a disaster, but it does nothing to keep a household running while the event is unfolding.
Why solar usually doesn’t work during blackouts
Rising insurance costs highlight the financial impact of extreme weather. Disasters also create another problem that insurance cannot solve: loss of electricity.
Floods can inundate substations. Storms and cyclones can bring down transmission lines. Bushfires sometimes force utilities to shut parts of the grid as a precaution. When infrastructure is damaged, outages can last hours or even days while crews carry out repairs.
This is where many homeowners expect rooftop solar to step in. If the sun is shining, the assumption is that the house should still have power. In most cases, that isn’t what happens.
A common misunderstanding is that solar panels automatically power a home during a blackout. Most Australian systems are grid-connected, which means they shut down when the grid fails. This happens because of a safety mechanism called anti-islanding protection. If solar systems continued feeding electricity into damaged lines, they could put repair crews working on the network at risk.
So, during an outage, a typical solar setup behaves like this:
If you have solar without a battery:
- The grid fails
- The inverter shuts down automatically
- Solo generation stops
- The house loses power like neighbouring homes
Even if the sun is shining.
When solar can keep the lights on
Solar can provide backup power, but only when the system includes battery storage with blackout protection. In that setup, the battery disconnects the home from the grid and continues supplying electricity to selected circuits. Solar panels can keep generating during the day while the battery provides stored energy when needed.
Most households choose to back up essential loads, such as:
- Refrigeration
- Lighting
- Internet and communications
- Phone charging
- Selected power outlets
Larger batteries can support additional appliances depending on system size and configuration.
Increasingly, this capability is becoming part of the conversation around home energy. Solar was originally installed mainly to reduce electricity bills. Today, many households are also considering how their energy system performs when the grid is unavailable.
How batteries change the equation
Battery storage allows a solar system to keep operating when the grid goes down. When a battery with blackout protection is installed, the system can temporarily disconnect the home from the grid. This process, known as islanding, allows the house to run independently using stored energy and solar generation. Instead of shutting down during an outage, the system shifts into backup mode. What happens next depends on the size of the battery and how the system is configured. Most households prioritise essential circuits so the available power lasts longer.
Typical backup loads include:
- Refrigerators and freezers
- Lighting
- Internet routers and communications
- Phone and device charging
- Selected outlets
Some systems can support additional appliances such as televisions, washing machines, or small air-conditioning units. Whole-home backup is possible with larger battery capacities, though most setups focus on critical loads.
During daylight hours, rooftop solar can continue generating electricity and recharge the battery. This can extend the length of time the home can operate independently while the grid is being restored.
The appeal of batteries is no longer limited to energy savings. Increasingly, they are being viewed as a resilience upgrade, helping homes stay functional during extreme weather events that disrupt electricity networks.
Why insurers are starting to look at resilient homes
Insurance has always been tied to risk. Homes that are better prepared for disasters tend to generate fewer claims, which is why insurers already reward certain resilience upgrades.
In bushfire-prone areas, properties built with fire-resistant materials can sometimes qualify for lower premiums. Homes with reinforced roofs or cyclone-rated construction may also be viewed more favourably in high-wind regions. The same logic is beginning to extend to household resilience more broadly.
Extreme weather events frequently disrupt electricity networks. When outages last for extended periods, households can face additional losses beyond structural damage. Food spoilage, temporary relocation, or damage to temperature-sensitive equipment can all increase the cost of claims.
Energy resilience technologies are therefore attracting more attention. Solar systems paired with battery storage allow households to maintain a basic electricity supply during outages, which can reduce the wider disruption caused by grid failures. While insurers are still evaluating how these systems affect risk profiles, the broader trend is clear. As climate risks intensify, homes that can remain functional during disruptions may increasingly be seen as lower-risk properties.
The rise of the “prepare and repair” economy
Repeated climate disasters are beginning to shape how money flows through parts of the economy. In states like QLD, rebuilding after floods, cyclones, and severe storms has become a recurring cycle. Roads are repaired, homes are rebuilt, infrastructure is strengthened, and insurance payouts help fund recovery efforts. Preparation and recovery are no longer occasional events. They are becoming an ongoing economic activity.
Analysts sometimes describe this pattern as a “prepare and repair” economy, where communities must continually invest in resilience while also funding reconstruction after major weather events
For households, this is increasingly visible in rising insurance costs, stricter building standards, and growing attention on disaster preparedness.
Energy systems are gradually entering that conversation. Alongside reinforced roofing, improved drainage and stronger building materials, technologies such as solar and battery storage are starting to be considered part of a broader resilience toolkit.
As extreme weather becomes more disruptive, the value of home energy systems may extend beyond reducing electricity bills. For some, they are becoming another way to prepare for disruptions before they happen.
A new reason Australians are installing solar
For many years, the main reason households installed solar was simple: to reduce electricity bills. Australia’s high power prices and abundant sunshine made rooftop solar an easy financial decision for millions of homeowners. The system would generate electricity during the day, households would use that energy instead of buying from the grid, and excess power could be exported for a feed-in tariff (FiT).
That financial logic still drives most installations today. However, another motivation is starting to appear in conversations with installers and energy advisers. Homeowners are increasingly asking how their system will perform when the grid is unavailable.
Instead of focusing only on savings, some households are looking at solar and battery systems as a way to maintain basic power during disruptions. The question is whether it can keep essential appliances running if the network goes down.
For those exposed to floods, storms, or bushfires, that capability can become part of of broader planning for extreme weather. Solar and battery systems are gradually changing from being purely a cost-saving technology to something that can also support household resilience.
Solar as protection, not just savings
Insurance will always be essential for repairing homes after disasters. But extreme weather is highlighting a different kind of vulnerability: what happens while the disruption is actually unfolding.
Power outages have become a common consequence of floods, storms and bushfires. When the grid fails, households quickly lose access to services that depend on electricity.
Solar panels alone usually cannot prevent that. But when paired with battery storage, a home can maintain power for essential appliances while the network is restored.
For years, Australians installed solar mainly to reduce electricity bills. Increasingly, some households are looking at it through a different lens.
In a future shaped by more frequent extreme weather, solar and battery systems may become part of how homes protect themselves from disruption.
In that sense, they are starting to serve a role that looks a little like insurance.
Energy Matters has been in the solar industry since 2005 and has helped over 40,000 Australian households in their journey to energy independence.
Complete our quick Solar Quote Quiz to receive up to 3 FREE solar quotes from trusted local installers – it’ll only take you a few minutes and is completely obligation-free.
