Is Rooftop Solar Worth It in 2026? A Data-Driven Financial Breakdown
Published: September 2026 • 8 min read • Data Sources: U.S. EIA & NREL PVWatts
With residential electricity tariffs climbing nationally by an average of 2.5% to 4.2% annually, rooftop solar has transitioned from an environmental luxury into one of the most effective hedges against utility inflation. However, whether solar is "worth it" depends almost entirely on where you live.
The 3 Pillars of Solar Profitability
1. Electric Tariff (Cents/kWh)
The higher your electric rate, the faster your payback. A homeowner in California paying 32.4¢ breaks even twice as fast as one paying 14.2¢ in Georgia, even with identical sun exposure.
2. Peak Solar Irradiance
States like Arizona (6.5 sun hrs/day) generate ~50% more electricity per solar panel than cloudy northern climates, producing higher annual kilowatt-hour yields.
3. Net Metering Rules
1:1 retail net metering (FL, NY, PA, IL) credits exported daytime surplus at full retail value, whereas California NEM 3.0 rewards pairing solar with home battery storage.
State-by-State Solar Viability Table (2026 Data)
| State | EIA Electric Rate | Daily Sun Hours | Federal Credit | Est. Payback (8 kW) | Calculator |
|---|---|---|---|---|---|
| California | 32.4¢ / kWh | 5.6 hrs/day | 30% (Sec 25D) | 7.2 Years | Calculate → |
| Texas | 14.9¢ / kWh | 5.2 hrs/day | 30% (Sec 25D) | 7–9 Years | Calculate → |
| Florida | 15.8¢ / kWh | 5.4 hrs/day | 30% (Sec 25D) | 7–9 Years | Calculate → |
| New York | 24.2¢ / kWh | 4.2 hrs/day | 30% (Sec 25D) | 5.8 Years | Calculate → |
| Pennsylvania | 18.5¢ / kWh | 4.1 hrs/day | 30% (Sec 25D) | 7–9 Years | Calculate → |
| Illinois | 16.8¢ / kWh | 4.3 hrs/day | 30% (Sec 25D) | 7–9 Years | Calculate → |
| Arizona | 14.8¢ / kWh | 6.5 hrs/day | 30% (Sec 25D) | 7–9 Years | Calculate → |
| Georgia | 14.2¢ / kWh | 4.9 hrs/day | 30% (Sec 25D) | 7–9 Years | Calculate → |