Solar panel cost and savings in Lewiston, Idaho
Lewiston sits at 46.42°N, 117.02°W in Idaho, United States. A typical residential solar system there is sized at 7.5 kW, laid out as 17 panels of 440 W each, mounted at a 40 degree tilt facing the sun's midday path.
Based on PVGIS solar radiation data for Lewiston's coordinates, that system produces an estimated 11,208 kWh in its first year. At the local electricity price of $0.18 per kWh (export $0.06 per kWh, daily supply charge $0.55), that generation is worth an estimated $1,229 a year to a household with typical usage patterns for a 3-person home.
Get a solar estimate for your home in LewistonIncentives in Lewiston
No incentive currently applies to a system installed in Lewiston.
Cost and payback
A typical system in Lewiston costs an estimated $16,456 to $26,180 installed. With no incentive currently applying, that is also the net cost, and the system pays back in about 19 years at today's local electricity price.
These figures assume a typical 3-person household with no pool, electric vehicle or electric heating, and installation in 2026. Incentive schemes change, and one may apply here by the time you install. Electricity prices shown here are set at the country level. Incentive amounts, when present, use each scheme's national or regional scope as noted above, except where an incentive's value is itself calculated from Lewiston's local solar zone; only the production and payback figures are calculated specifically for Lewiston's coordinates.
Frequently asked questions
How much solar power can a typical home in Lewiston generate?
A typical 7.5 kW system (17 panels) in Lewiston produces an estimated 11,208 kWh a year, based on PVGIS solar radiation data for its coordinates.
What does solar cost in Lewiston?
A typical system costs $16,456 to $26,180 installed. No incentive currently applies, so that is also the estimated net cost.
How long does solar take to pay back in Lewiston?
At local electricity prices, a typical system in Lewiston pays back in about 19 years, with estimated annual savings of $1,229.