Switching to solar is easy—but that doesn’t mean you won’t have a few questions once the array is on your roof. Here are a few of the most common ones people ask once they install a solar system.
Q: What maintenance does my system need?
A: Just about none. As long as you make sure no tree branches grow over your array, you won’t have to do anything to enjoy the benefits of solar. Depending on the type of inverter your system has, you may need to replace your inverter 10-15 years after the original installation.
Q: What happens if my system makes more energy than my house uses in a month?
A: You will accrue credit with your utility for sending power to the grid. This credit will be reflected on your monthly Net Metering and annual True-up statements. Here’s an article that explains Net Metering and True-up statements in more depth.
Q: What happens if my system makes more energy than my house uses in a year?
A: You will accrue credit with your utility for sending power to the grid. If you get your power through PG&E, this credit will automatically be applied to your gas bill. If you don’t have a gas bill, or the credit amount is larger than your gas bill, the credits will accumulate and automatically be applied to future bills. If you don’t owe PG&E money for gas and you would like a check for the credit you’ve accrued, you can call them to request a check. Keep in mind that they will only pay you the wholesale price of the energy, not the price they charge residential customers.
Q: How do I know how much energy my system is producing?
A: Your inverter will display your PAC (power AC), which shows how much power is being produced. To calculate your system’s efficiency, just divide this number by the system size. Please note that your Net Metering and True-up statements do not show your actual production.
Q: My system is not producing any power. What do I do?
A: First, check your inverter or microinverter display screen. It should display relevant information during daylight hours such as current power being produced or any errors. Note that most inverters turn off during night time because they are powered by the solar panels.
Second, make sure that your AC disconnect or breaker in your electrical panel is in the On position.
Q: I just had work done on my house by an electrician. What do I need to do?
A: Make sure the electrician turns on any solar related equipment that she/he might have turned off during the repair work. Then, check your inverter display to make sure it is producing power during daylight hours.
Q: How long will my system last?
A: You can expect your panels to last over 25 years—and often quite a bit longer. Depending on the type of inverters, you may need to replace your inverter 10-15 years after the original installation. By using the best quality parts, our systems can last for decades in the worst climates, and even in the harsh Bay Area weather.
Q: What should I do if something happens to my system?
A: Just call us at (415) 697-1547 or email us at info@luminalt.com.
If you have any more questions about your system, don’t hesitate to give us a call.