How long do solar panels last?

Posted in Getting solar

How long do solar panels last?

Solar panels should last at least 25 years, however this doesn’t mean they simply stop working after that time.

Solar panels can continue to generate electricity for decades, it’s simply the efficiency of the panels that tends to start declining. In other words, the amount of electricity the panels produce will start to drop off.

Solar panels last so long because they have no moving parts and are designed to withstand potentially harsh outdoor conditions. Assuming they don’t sustain any physical damage from the elements – think wind, hail storms and debris – solar panels have been known to last 30 or even 40 years! 

The part of your solar system that is more likely to fail before then is the inverter. The inverter converts the energy produced by your solar panels into electricity that can be used in your home or exported to the electricity grid. 

Unlike the panels, the inverter works hard all day, so is the part of your solar system that is more likely to fail within the first 10-15 years of your solar installation. 

For this reason, inverters tend to come with a warranty of 5-10 years while solar panel performance warranties are up around 25 years. 


Ready to go solar?

If you’re thinking about solar, now is the most cost-effective time to add a solar battery too. For example, our mid-sized solar and battery package (including installation) could pay for itself in around 7 years*.

Designed specifically for households adding solar panels and a battery at the same time, our package brings world-leading, tier 1 solar panels together with an Australian-designed battery solution in one streamlined, cost-effective package. 

The package comes in a range of sizes depending on your energy needs, household set-up and budget. Plus there are financing options available so you can start saving with your solar and battery system now, and pay it off over time. 

View the solar and battery package


*This scenario is the 6.6 kW system and a mid sized battery (7kWh). Assuming typical generation in Victoria and assuming battery gets cycled 90% of the time at 90% depth, solar savings are estimated at $1,734 ($0.20 average value of the solar generated, which could be 10c FiT and 30c usage rate at 50/50% as an example). Battery savings would be an additional $440 per annum, for total savings of $2,174.

Back to Blog