Extreme rain continues to lash large parts of Australia’s East Coast. While many are experiencing roadblocks and flooding, people who have solar can be forgiven for wondering if their solar panels work in the rain.
How solar works
The solar panels on your roof convert sunlight to DC power. Your inverter converts this power to 240-volt AC power for use in your home. Energy that is generated but not used, is exported to the grid. Depending on your energy production and consumption, you may find you’re often in credit with your electricity retailer.
How efficient are solar panels on cloudy days?
Solar panels will produce energy on cloudy days. The amount of electricity generated depends on the density of the clouds and the efficiency of the solar panels. Photovoltaic solar panels use both direct sunlight and indirect sunlight. This means panels still work on cloudy days, but the amount of electricity generated changes. You can check the production of your system using your app.
Will solar panels work in the rain?
The short answer is yes. Solar panels work when it’s raining, but the amount of electricity they generate will be less than when the sun is shining. As a rule of thumb, a solar system may produce as little as 15% of the energy it would produce on an ideal day.
While rain won’t necessarily wash away bird or bat droppings, it may wash away dust and pollen. It’s a fact, dirty panels may result in a loss of up to 25% in system efficiency. Rainy days may help your solar system to run more efficiently when the sun is finally shining again.
If you’re concerned about solar system performance or potential panel damage after a hailstorm, get in touch with our Clean & Safe team to arrange a safety inspection. Learn more here.
Which solar panels are best?
While Australia is one of the sunniest nations in the world, depending on where you live, you may experience cyclones, salt mist, hailstorms, torrential rain, and sub-zero temperatures.
Many leading global solar panel brands manufacture panels for harsh Australian conditions. To give you full confidence, look closely at the panel spec sheet for degradation, salt mist corrosion testing, ammonia corrosion testing, cyclonic wind testing and mechanical strength.
Talk to a Solenergy Solar Specialist about which panel is right for your home and where you live. Arrange a site inspection and quote here.