Electricity rates, net metering rules and typical solar costs vary enormously by state. Pick yours for a snapshot, then jump into any calculator with your state's numbers already loaded.
$0.31/kWh · NEM 3.0 net billing
South$0.15/kWh · Utility-specific net metering
South$0.14/kWh · Statewide net metering
Northeast$0.23/kWh · Net metering / VDER
Northeast$0.16/kWh · Statewide net metering
Midwest$0.16/kWh · Net metering + Illinois Shines
Midwest$0.15/kWh · Statewide net metering
South$0.13/kWh · Utility-specific programs
South$0.12/kWh · Net metering
Midwest$0.18/kWh · Distributed Generation program
Northeast$0.18/kWh · Net metering + SREC-II
South$0.14/kWh · Statewide net metering
West$0.11/kWh · Net metering, low base rate
West$0.14/kWh · Net billing, avoided-cost export
Northeast$0.28/kWh · Net metering + SMART program
South$0.12/kWh · TVA dispersed power production
Midwest$0.15/kWh · Declining net metering credit
Midwest$0.12/kWh · Statewide net metering
Northeast$0.17/kWh · Net metering + SREC market
Midwest$0.16/kWh · Utility-specific buyback
West$0.15/kWh · Statewide net metering
Midwest$0.14/kWh · Net metering + Value of Solar option
South$0.14/kWh · Net metering + 25% state credit
South$0.14/kWh · No statewide mandate, grid-access fee
South$0.11/kWh · Avoided-cost net metering
Three things drive most of the state-to-state difference: your electricity rate (solar is worth more where grid power is expensive), your net metering policy (whether exported power is credited near retail rate or a lower "avoided cost" rate), and your local sun hours. Two identical systems in different states can have a payback period that differs by a factor of two or more. Pick your state above for a specific snapshot, or use the country/state selector inside any calculator directly.
Don't see your state yet? The 25 states above cover the majority of the US solar market — more are being added. In the meantime, select "United States" in any calculator's country dropdown and enter your own local electricity rate for an accurate estimate.