Fortunately, solar is a mature technology with minimal maintenance and no moving parts. Most solar systems will stay clean by normal rainfall washing the panels. Consider annual washing only if your panels are not tilted or you live in an area with lots of dust or little rain.
Even with harsh Massachusetts winters, your panels were designed to withstand the average snow fall amounts for the area. Resist the temptation to use warm water or salt to melt snow or ice or you could damage the panels. It’s best to wait for a natural thaw.
In most cases, the danger from climbing your roof to maintain your panels is higher than the performance benefit gained by this activity.
Start with Efficiency at Home
One way to see peak performance with your solar energy system is to start with energy efficiency at home. Perform a home energy audit to make sure the energy you produce from your solar system isn't wasted. We can help with a with a home energy assessment to identify ways to save energy while making your home more comfortable.
When Problems Arise
The amount of electricity your system produces each month will vary due to the season. Ask your solar contractor about what to expect from your system on a monthly basis. Then, if you find that your system is not producing the expected output, you can assume it is under performing and it's time to have your system checked by a technician. A quick glance at the display panel on your inverter will also show system errors that need attention.
Check Your Warranties
Some parts such as the inverter may need to be replaced over the lifetime of your solar system. Be sure to check your maintenance contract with your installer to understand the terms of what's covered under the warranty and for how long.
Typical Solar Panel Warranty
Most solar panels have a 20- to 25-year manufacturer warranty with inverters warrantied up to 25 years. Your solar contractor should provide a minimum 5-year warranty to protect against defective workmanship, electric component breakdown or significant degradation in electrical output. Your solar contractor may have also offered you a maintenance contract.
If you leased or entered into a power purchase agreement for your solar panel system, repairs and maintenance are the solar company’s responsibility, not yours.
Your solar contractor is your ideal source for answers to your maintenance questions.