How much could home solar save me?
Free home solar savings estimate. Enter your ZIP, system size and monthly electric bill for a rough yearly production and savings figure using EIA prices and NREL sun hours.
How much can solar panels save me per year?
It depends on your sun, your system size and your electricity price. As a rough guide, a 6 kW system makes about 7,000 to 11,500 kWh a year depending on the state, worth roughly $900 to $4,000 a year at average residential prices. This tool gives a figure for your state.
How many kWh does a 6 kW solar system produce?
Between about 7,000 and 11,500 kWh a year depending on the state (about 5,500 in Alaska), using state average sun hours and an 80 percent system efficiency factor. Arizona and New Mexico are at the high end, Washington and Alaska at the low end.
How many solar panels do I need?
Divide your yearly electricity use in kWh by the yearly output of one panel. A 400 watt panel makes roughly 450 to 750 kWh a year depending on the state. Enter your monthly bill here to see how much of your use a given system covers.
Is this estimate accurate?
No, it is a rough planning figure. Your roof direction, tilt, shade, utility rates, net metering rules and panel type all change the answer. For a number tied to your exact roof, use the NREL PVWatts calculator or ask installers for a quote.
Does this include tax credits or incentives?
No. It only estimates production and the electricity you would not have to buy. It does not include system cost, financing, tax credits or utility incentives.
Track your real numbers with Pamkit Solar
Already have panels, or about to? Connecting your system in the Pamkit app starts a 7-day free trial of everything in Solar, so you can compare what it really makes with this estimate.
This estimate uses state averages, so a sunny part of a cloudy state, a shaded roof or a north-facing roof will differ. Nothing is sent anywhere: the numbers are worked out in your browser from data bundled with this page.
Your home
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Estimate, not a quote
Yearly production
Per month, on average
Yearly savings
Your yearly use (from your bill)
Yearly bill after
Enter a ZIP or state, a system size and your monthly bill to see the estimate.
Works with SunPower PVS gateways. Pamkit is not affiliated with SunPower.