The average cost to install solar on a home in Florida is $3.42 per watt, with about 80 percent of systems installed for $2.33 per watt to $4.39 per watt. This is lower than the average solar cost in the South Atlantic Region of $3.95 per watt.
The average size of a solar system in Florida is 7.0 kilowatts, which would cost around $23,900 without any federal, state, or local incentives.
1 kilowatt of solar PV in Florida produces an average of 1,448 kilowatt-hours of electricity per year, so a 7.0 kilowatt solar system would generate 10,137 kilowatt-hours of electricity every year. An average household in Florida uses 13,695 kilowatt-hours of electricity in a year.
With an average state electricity price of 11 cents per kilowatt-hour, this solar system could save a household in Florida $1,155 each year. At this rate of annual savings, the system could pay for itself in about 21 years assuming no additional system expenses. This is less than the expected 30-year lifespan of a typical solar panel.