If you’re looking to invest in solar power, or even if you have solar, you might wonder if solar panels work in the rain. Chances are, if it’s perfect weather for Netflix and Tim Tams, it’s not so perfect for solar panels. But there is good news!
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. You can learn more about how solar works here.
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 is 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.
Not totally ideal, however there is an upshot. 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! So, the good news is, rainy days can help clean your solar panels. This means your solar power will 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, contact 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 solar panel is right for your home and where you live. Arrange a site inspection and quote here.
Consider solar battery storage
Solar battery storage will help you get the most out of your solar power on rainy days. This is because the battery stores the excess energy produced by your solar system. Consequently, while your solar friends are buying energy from the grid, you’re powering your home with energy from your solar battery.
So there you have it. It’s not all bad news. In fact, the good news is, after Perth and Darwin, Brisbane is Australia’s third sunniest state capital! Arrange a free site inspection and solar quote today. Get in touch here.