Solar · FL · 2026
Average Solar Panel Cost in St. Petersburg, FL — 2026
The average cost to install solar panels in St. Petersburg is $29,200 gross ($20,440 after the 30% federal ITC) in 2026. Payback period: ~12 years. Get free installer quotes.
Average System Cost
A typical 10 kW residential solar system in St. Petersburg, FL costs $29,200 gross ($20,440 after the 30% federal ITC) in 2026. Annual electricity savings are approximately $1,710, giving an estimated payback period of ~12 years on a cash purchase. Use the solar payback calculator for a full breakdown including state incentives.
Average Solar Panel Cost in St. Petersburg, FL (2026) — Data Breakdown
| Item | Amount |
|---|---|
| Gross system cost (10 kW) | $29,200 |
| Federal ITC (30%) | -$8,760 |
| Net cost after ITC | $20,440 |
| Annual electricity savings | $1,710/yr |
| Estimated payback | ~12 years |
| Cost per watt | ~$2.92/W installed |
Methodology: Based on SEIA 2026 average installed cost data for FL, EIA state electricity rate, and NREL PVWatts production model. Actual costs vary by installer, roof type, and system configuration.