Florida Solar Calculator — 2026 Costs & Payback
Florida lives up to its Sunshine State reputation with 1,485 kWh/kW production and the strongest pro-solar policy stack in the Southeast. Unlike Texas, Florida retains <strong>full retail net metering</strong> for residential customers of investor-owned utilities (FPL, Duke, TECO, Gulf Power). Add property tax exemption + sales tax exemption and Florida solar economics consistently rank in the top tier nationally — typical payback 7–10 years.
US Solar Payback Calculator — 2026
Get an accurate solar payback estimate for your state using NREL solar irradiance, EIA electricity rates, and the 30% federal Investment Tax Credit.
The numbers above are based on state averages. Real quotes vary by roof orientation, shading, panel type, and installer. Compare quotes from 3+ pre-vetted installers in your area — free, no obligation.
Highest electricity rates in the lower 48. NEM 3.0 (since April 2023) cuts export rates ~75%. Battery storage now near-mandatory for payback.
Methodology & sources
Solar irradiance per state: National Renewable Energy Laboratory (NREL) PVWatts PSM3 typical-year data, weighted state average for residential rooftops.
Electricity rates: EIA Form 826 monthly residential rates (most recent September 2025 data).
Federal ITC: 30% through 2032 under the Inflation Reduction Act (Section 25D).
State incentives: DSIRE (Database of State Incentives for Renewables & Efficiency) as of April 2026.
Inflation assumptions: 2.5% annual electricity price increase (EIA AEO 2024 reference case), 0.5% annual panel degradation (NREL standard).
Self-consumption assumption: 45% direct self-consumption without battery — typical for residential without storage.
Deep dive — solar in Florida
Florida tax incentives:
- Sales tax exemption: 100% exempt on solar equipment (FL Stat 212.08(7)(hh))
- Property tax exemption: 100% of added home value from solar excluded from assessment
- No state income tax, so federal ITC is the only tax incentive layer
Hurricane considerations: Florida solar systems must meet stricter wind-load codes than most states (140 mph in coastal counties, Category 5 in southwest FL). This adds ~$0.10–$0.15/W to install costs — already reflected in our $2.75/W state average.
Best Florida utilities for solar:
- FPL (largest, 5M+ customers) — clean net metering, ~50,000 active solar customers
- Duke Energy Florida — full net metering, slower interconnection (~6 weeks)
- TECO (Tampa) — full net metering, faster permitting
Battery storage in Florida: Less critical than in CA — full retail net metering means you don't lose value on exports. However, batteries add hurricane-grid-resilience value (whole-home backup during outages), which is a strong sell despite slower payback math.
Florida solar FAQ
Does Florida have net metering?
Yes — investor-owned utilities (FPL, Duke FL, TECO, Gulf) offer full 1:1 retail-rate net metering for residential systems up to 2 MW. Co-op customers vary.
Are solar panels tax-exempt in Florida?
Yes, both sales tax and property tax. Solar equipment purchases are 100% sales-tax exempt; the added home value from solar is excluded from property tax assessment.
How much does solar cost in Florida 2026?
Average $2.75/W installed. A typical 8 kW system runs $22,000 gross, $15,400 after 30% federal ITC.
Do I need a battery in Florida?
For pure ROI, no — full net metering captures export value at retail rate. For hurricane resilience and whole-home backup during outages, yes. Many Floridians install batteries for outage protection rather than economics.