South Carolina / Tega Cay
Is solar worth it in Tega Cay?
Duke Energy Carolinas, LLC averages 14.0¢/kWh. With 5.0 peak sun hours a day, a typical 7.1 kW system makes ~10,402 kWh a year and saves about $1,455 in year one.
No federal tax credit is included. The 30% homeowner credit (IRS §25D) ended for systems installed after Dec 31, 2025. What changed in 2026 →
How Tega Cay compares
That is about the same as the South Carolina average of 11.1 years, mainly because Tega Cay's rate is below the state average of 14.4¢/kWh. Your own payback depends on your bill: enter your ZIP and monthly bill above for your number.
| Nearby city | Rate | Payback | 25-yr net |
|---|---|---|---|
| Fort Mill | 14.0¢ | 11.4 yrs | $33,518 |
| Rock Hill | 14.0¢ | 11.4 yrs | $33,518 |
| Gaffney | 14.0¢ | 11.4 yrs | $33,518 |
| Spartanburg | 14.0¢ | 11.4 yrs | $33,390 |
| Newberry | 14.6¢ | 11.0 yrs | $35,792 |
| Irmo | 14.6¢ | 11.0 yrs | $35,792 |
| Columbia | 14.6¢ | 11.0 yrs | $35,792 |
| Greer | 14.0¢ | 11.4 yrs | $33,390 |
Questions
How long does solar take to pay off in Tega Cay, SC?
About 11.4 years for a typical 7.1 kW system at 14.0 cents/kWh, assuming $2.75/W installed, full net metering and 3% yearly rate increases, with no federal tax credit.
Is solar worth it in Tega Cay?
Often, if you plan to stay long-term. Our estimate is $1,455 saved in year one and $33,518 net over 25 years after paying for the system.
How much does a solar system cost in Tega Cay?
A 7.1 kW system sized for an average home (863 kWh/month) is about $19,525 before any local rebates, at $2.75 per watt. Real quotes vary by roof and installer.
Is there a federal solar tax credit in 2026?
Not for homeowners who buy their system. The 30% Residential Clean Energy Credit (IRS section 25D) does not apply to installations completed after December 31, 2025. State rebates, SRECs and utility incentives may still apply.
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