Best Cities for Solar in Tennessee
Tennessee has 15 tracked locations with an average of 4.3 hrs/day of peak sun and $1,002/year in average solar savings. The best location is Brownsville (38101) with $1,046/year in savings.
15
tracked locations
4.3 hrs
avg peak sun/day
$1,002
avg annual savings
11.5 yrs
avg payback
Solar Data by ZIP Code in Tennessee
| City / ZIP | Peak Sun | 6kW Cost | Annual Savings | Payback |
|---|---|---|---|---|
| Brownsville 38101 | 4.5 hrs | $18,000 | $1,046/yr | 12.1 yrs |
| Memphis 37501 | 4.5 hrs | $18,000 | $1,046/yr | 12.1 yrs |
| Jackson 38301 | 4.4 hrs | $18,000 | $1,022/yr | 12.3 yrs |
| Alamo 38001 | 4.4 hrs | $18,000 | $1,022/yr | 12.3 yrs |
| McKenzie 38201 | 4.4 hrs | $18,000 | $1,022/yr | 12.3 yrs |
| Nashville 37201 | 4.3 hrs | $18,000 | $999/yr | 12.6 yrs |
| Athens 37301 | 4.3 hrs | $18,000 | $999/yr | 12.6 yrs |
| Chattanooga 37401 | 4.3 hrs | $18,000 | $999/yr | 12.6 yrs |
| Columbia 38401 | 4.3 hrs | $18,000 | $999/yr | 12.6 yrs |
| Adams 37001 | 4.3 hrs | $18,000 | $999/yr | 12.6 yrs |
| Johnson City 37601 | 4.2 hrs | $18,000 | $976/yr | 12.9 yrs |
| Alcoa 37701 | 4.2 hrs | $18,000 | $976/yr | 12.9 yrs |
| Maryville 37801 | 4.2 hrs | $18,000 | $976/yr | 12.9 yrs |
| Knoxville 37901 | 4.2 hrs | $18,000 | $976/yr | 12.9 yrs |
| Cookeville 38501 | 4.2 hrs | $18,000 | $976/yr | 12.9 yrs |
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Data verified March 2026 · Source: NREL, DSIRE, EIA