Solar Panel Calculator for Florida (FL)
Calculate how many solar panels you need in Florida, estimated costs after the 30% federal tax credit, payback period, and 25-year savings. Based on 5.5 peak sun hours/day and $0.145/kWh average electricity rate.
☀️ Florida Solar Panel Calculator
Your Florida Solar System
⚠️ Estimates only. Actual costs and production vary. Consult a licensed solar installer. NEC Article 690 compliance required.
Solar System Sizes by Usage in Florida
| Monthly kWh | Panels | System kW | Net Cost | Savings/yr | Payback |
|---|---|---|---|---|---|
| 500 kWh | 10 | 4.0 | $7,280 | $931 | 7.8 yrs |
| 750 kWh | 15 | 6.0 | $10,920 | $1,397 | 7.8 yrs |
| 1,000 kWh | 19 | 7.6 | $13,832 | $1,770 | 7.8 yrs |
| 1,250 kWh | 24 | 9.6 | $17,472 | $2,236 | 7.8 yrs |
| 1,500 kWh | 29 | 11.6 | $21,112 | $2,701 | 7.8 yrs |
| 2,000 kWh | 38 | 15.2 | $27,664 | $3,540 | 7.8 yrs |
| 2,500 kWh | 48 | 19.2 | $34,944 | $4,471 | 7.8 yrs |
Based on 5.5 peak sun hours/day, $0.145/kWh, $2.6/W install cost, 80% derate. 30% federal ITC applied.
Complete Guide to Solar Panels in Florida (2026)
Florida receives an average of 5.5 peak sun hours per day, making it one of the best states for solar energy production. With average residential electricity rates of $0.145/kWh, solar offers meaningful savings potential.
Solar Installation Costs in Florida
The average cost to install solar panels in Florida is $2.60 per watt before incentives. For a typical 8 kW system, that translates to approximately $20,800 gross, or $14,560 after the 30% federal ITC. Available incentives: Federal ITC (30%), property tax exemption, sales tax exemption.
Net Metering in Florida
Florida net metering status: Yes. The Sunshine State offers excellent solar potential with full property and sales tax exemptions on solar equipment.
NEC Requirements for Solar in Florida
All solar installations must comply with NEC Article 690 — Solar PV Systems. Key requirements:
NEC 690.8 — Circuit Sizing: PV conductors must carry at least 125% of maximum circuit current. For a 10A string, conductors must be rated for 12.5A minimum.
NEC 690.12 — Rapid Shutdown: Module-level shutdown must reduce voltage to 80V or less within 30 seconds. Critical for firefighter safety.
NEC 690.31 — Wiring Methods: USE-2 or PV Wire within the array; approved wiring methods (EMT, rigid conduit, MC cable) for building penetrations.
NEC 310.15 — Ampacity Derating: Conductors in conduit must be derated per Table 310.15(B)(3)(a). In Florida, where roof temperatures can exceed 60°C in summer, derating is especially important. Use our Wire Size Calculator and Derating Calculator for proper sizing.
Solar Wire Sizing for Florida
Panel strings to combiner box: Typically 10 AWG USE-2 or PV Wire for runs up to 100 feet. Use our Solar Wire Size Calculator to verify.
DC main run to inverter: Usually 6 AWG or 4 AWG THWN-2 in conduit. Keep DC voltage drop under 1.5% with our Voltage Drop Calculator.
AC from inverter to panel: A 7.6kW inverter on 240V draws ~32A, requiring a 40A breaker and 8 AWG copper minimum. Verify with our Breaker Size Calculator.
Environmental Impact
A 73.20 kW system in Florida offsets approximately 108.2 metric tons of CO₂ per year, equivalent to planting 1,803 trees annually. Florida grid carbon intensity: 0.92 lbs CO₂/kWh.
Disclaimer: Estimates only. Actual costs and production vary by roof orientation, shading, installer, and equipment. Consult a licensed solar installer in Florida. NEC Article 690 compliance required for all installations.
Frequently Asked Questions
Top 10 Solar States Comparison
| Rank | State | Sun Hours | Rate | Cost/Watt |
|---|---|---|---|---|
| #1 | California | 5.8 | $0.267 | $2.82 |
| #2 | Hawaii | 5.2 | $0.387 | $3.35 |
| #2 | Texas | 5.3 | $0.134 | $2.6 |
| #3 | Arizona | 6.5 | $0.134 | $2.55 |
| #4 | Florida | 5.5 | $0.145 | $2.6 |
| #5 | Nevada | 6.2 | $0.127 | $2.55 |
| #6 | Massachusetts | 3.8 | $0.268 | $3.2 |
| #7 | New Jersey | 4.2 | $0.175 | $2.9 |
| #8 | New Mexico | 6.2 | $0.137 | $2.75 |
| #9 | Colorado | 5.5 | $0.148 | $2.9 |
Related Calculators
Solar Calculator by State
See also: Electricity Cost in Florida