Tennessee / Hartsville/Trousdale County
Is solar worth it in Hartsville/Trousdale County?
Middle Tennessee E M C averages 11.8¢/kWh. With 4.6 peak sun hours a day, a typical 7.7 kW system makes ~10,387 kWh a year and saves about $1,222 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 Hartsville/Trousdale County compares
That is slower than the Tennessee average of 13.2 years, mainly because Hartsville/Trousdale County's rate is below the state average of 12.5¢/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 |
|---|---|---|---|
| Lebanon | 11.8¢ | 14.1 yrs | $23,374 |
| Gallatin | 13.5¢ | 12.6 yrs | $29,811 |
| Mount Juliet | 13.5¢ | 12.6 yrs | $29,811 |
| Portland | 13.0¢ | 13.0 yrs | $28,004 |
| Hendersonville | 13.5¢ | 12.6 yrs | $29,811 |
| White House | 13.0¢ | 13.0 yrs | $28,004 |
| Goodlettsville | 13.5¢ | 12.6 yrs | $29,811 |
| La Vergne | 13.5¢ | 12.6 yrs | $29,811 |
Questions
How long does solar take to pay off in Hartsville/Trousdale County, TN?
About 14.2 years for a typical 7.7 kW system at 11.8 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 Hartsville/Trousdale County?
Only in some cases; payback is long. Our estimate is $1,222 saved in year one and $23,363 net over 25 years after paying for the system.
How much does a solar system cost in Hartsville/Trousdale County?
A 7.7 kW system sized for an average home (863 kWh/month) is about $21,175 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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