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RoofPayback
Updated Oct 15

Solar panels in Fort Myers, FL: payback and output

A kW of south-facing panels in Fort Myers produces about 1,558 kWh a year, about the same as Orlando, the Florida reference city. Summer months produce 1.1× what winter does. To cover a typical 10,500 kWh/yr home on paper you'd need roughly 6.7 kW.

Output by month in Fort Myers (kWh per kW)

Best: May · weakest: Dec.

Jan: 120 kWhJanFeb: 124 kWhFebMar: 147 kWhMarApr: 148 kWhAprMay: 152 kWhMayJun: 123 kWhJunJul: 127 kWhJulAug: 126 kWhAugSep: 121 kWhSepOct: 134 kWhOctNov: 123 kWhNovDec: 113 kWhDec

Example 7 kW system in Fort Myers

Installed cost (example)
$21,000
Production, year 1
10,905 kWh
Savings, year 1
$1,578
Payback
12.3 years
25-year net gain
$28,641

Uses the Florida average price (15.03¢/kWh, EIA July 2026), full net metering and no incentives. Your utility's rate and export credit may differ — change them below.

Roof direction in Fort Myers

Yearly output per kW of panels at a 20° pitch, and how it compares with a south-facing roof.

Roof faceskWh per kW/yrvs. south
South1,558—
Southeast1,527−2%
Southwest1,479−5%
East1,404−10%
West1,335−14%
East-west (split)1,370−12%

Calculate your home in Fort Myers

1 · Your roof
Roof faces
Pitch

About 6.5 kW would cover 100% of your yearly use.

2 · Your usage
3 · Prices
Paying with
Advanced assumptions

Estimated payback

12.3 years

A solid case if you plan to stay in the home.

≈ $132/month off your bill in year 1

025y
Year-1 savings
$1,578
25-yr net gain
$28,641
Return (IRR)
7.2%
Net cost
$21,000

Cumulative savings minus cost

-$21k$0$29kYear 0510152025Break-even · 12.3 yrs

Production vs. use by month

10,905 kWh/yr

Jan: 839 kWhJanFeb: 867 kWhFebMar: 1,030 kWhMarApr: 1,037 kWhAprMay: 1,062 kWhMayJun: 859 kWhJunJul: 886 kWhJulAug: 884 kWhAugSep: 846 kWhSepOct: 938 kWhOctNov: 863 kWhNovDec: 794 kWhDec
Production Your use

Covers 40% of your use directly; 39% of the output is used on the spot.

405 kWh/yr earn no credit. Your credits exceed a year of grid purchases and most utilities don't pay out the excess. A smaller system pays back faster.

Which size pays off best?

Same usage and prices, only size changes. Best 25-year gain: 7 kW.

SizeCostYear-1 savingsPayback25-yr gain
3 kW$9,000$70213.0 years$10,964
4 kW$12,000$93712.6 years$15,452
5 kW$15,000$1,17112.4 years$19,940
6 kW$18,000$1,40512.2 years$24,428
7 kW$21,000$1,57812.3 years$28,641
8 kW$24,000$1,57813.7 years$27,406
10 kW$30,000$1,57816.5 years$21,406
12 kW$36,000$1,57819.0 years$15,406
Estimate based on NLR PVWatts and EIA data. How we calculate.

Read the full Florida solar guide for net metering, orientation and price trends.

Other cities in Florida

Cities with similar sunshine

Solar in Fort Myers: common questions

Are solar panels worth it in Fort Myers, FL?

For an example 7 kW system costing $21,000 on a home using 10,500 kWh a year, payback in Fort Myers is 12.3 years with full net metering and 16.8 years if exports earn half the retail rate, at the Florida average price of 15.03¢/kWh (EIA, July 2026).

How much electricity do solar panels produce in Fort Myers?

About 1,558 kWh per year for each kW of south-facing panels at a 20° pitch (NLR PVWatts, typical-year weather), from 113 kWh in Dec to 152 kWh in May.

What size solar system does a home in Fort Myers need?

About 6.7 kW to cover 10,500 kWh a year. Divide your own annual use by 1,558 kWh per kW for a first estimate; if exports earn less than retail, a smaller system often pays back faster.

Does roof direction matter in Fort Myers?

Yes. Per kW at a 20° pitch: south 1,558 kWh, southeast 1,527 kWh, southwest 1,479 kWh, east 1,404 kWh, west 1,335 kWh, east-west (split) 1,370 kWh a year. South-facing roofs produce the most; east or west roofs still work, with less output.

Guides for going solar in Fort Myers

Data: NLR PVWatts v8 (U.S. DOE National Laboratory of the Rockies, formerly NREL), TMY weather near Fort Myers (26.64, -81.87), 14% losses, retrieved 2026-10-11. Published 2026-10-15.