Rooftop solar in United States typically costs about $2,000 per kW installed, and household electricity is around $0.17 per kWh. The average sunshine is about 5.3 peak sun hours a day.
As a rough example, a 5 kW home system would cost about $11,500, make around 7,254 kWh a year, and save about $1,233 a year. That is a payback of roughly 9.3 years.
Rooftop solar
For homes and businesses. Size, cost, savings and payback.
Open rooftop calculatorSolar plant
For larger projects. Project returns and break-even price.
Open plant calculatorThese are typical estimates, not quotes. Replace them with real quotes before you decide anything.