What are the major components of a solar electric system? (PV)
PV Modules: Photovoltaic modules to convert sunlight into DC electricity.
Inverters: Converts DC electricity into household power.
How long is the warranty?
PV Modules 25 year performance warranty.
Everything else 10 years.
Customers who choose SunRun enjoy a 20 year warranty with full maintenance and panel cleanings.
How does it mount to my roof?
The systems we use add a nominal load of under 3 lbs/sq ft to your roof. Roof penetrations are sealed and double flashed and backed by HelioPower’s 10 year warranty.
Everything is thoroughly attached directly to rafters for additional strength.
Everything is thoroughly sealed from water with Sikaflex.
How long does it take to install?
It depends on the size of your system. Typically 3 to 5 days.
How big of a system do I need?
It depends on how much energy you want to generate. It usually boils down to one of the following:
Completely cover the load. We review 12 months worth of bills to more accurately calculate system size.
Employ a peak shaving strategy. We calculate the system size required to eliminate the most expensive rate tiers on your bill.
Can I completely eliminate my electric bill?
There is a minimum fee to remain connected to the grid, usually about $.17/day or less than $6/month.
How much space does the system use?
A 400kWh/month system uses less than 300 sq ft.
What kind of maintenance does the system need?
The PV modules should be cleaned when dirty. No other routine maintenance is required. If you suspect a problem, please call us and we will come out and perform a thorough inspection.
Does the system use batteries?
No, the system does not store electricity. If you are producing more power than you are using, your meter spins backwards. If you are consuming more than you are producing, your meter spins forwards. In the summer, your meter will spin backwards more often than during the winter.
How does having a PV system affect my utility billing?
You enter into what is known as a "Net Metering" contract with your utility. The utility continues to read your meter monthly. However, instead of sending you a monthly bill, they send you a statement showing your credits and debits. Your bill is settled annually on your anniversary date.
What is Net Metering?
See FAQs 9 & 10.
I live in an HOA (Home Owner's Association). Will I be able to install a PV system on my home?
Absolutely! California Civil Code 2473, otherwise known as the Solar Rights Act, restricts HOAs and local governments from interfering with solar installations except for health and safety issues.
I see that the PV system increases my home's value. Won't that also increase my property taxes?
No. In order to promote the use of renewable energy, the State has exempted PV installations from increased property taxes.
What happens to my solar system during a blackout?
During a blackout, your solar PV system powers down. This is to ensure the safety of any utility workers who may be making repairs in your area.
My neighbor has tall trees that shade my roof. Can I make my neighbor remove or trim his trees if I go solar?
You can certainly ask him to trim his trees, but he is under no legal obligation to do so UNLESS your solar power system was installed prior to the trees shading your roof. In other words, if the trees grow to a height that shades an existing solar energy system, the neighbor would be legally obligated to trim or remove the trees, foliage, hedge, or other obstruction.
Can I add battery backup to my solar electricity system?
Yes. However, battery backup systems can be very expensive. Your solar energy consultant can help you determine whether a battery backup system makes sense for you.
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