Solar Panel Cost & Payback in South Dakota
Home solar in South Dakota pays back in a median 25+ years across the 20 places we cover, at an average electricity price of 14.5¢/kWh and about $3.60 per watt installed. Power sent back to the grid earns only about 3.0¢/kWh (Avoided-cost purchase), which lengthens payback. Sioux Falls has the fastest payback (25+ years).
Solar estimates for South Dakota cities and towns
Sorted by fastest payback. Each figure is for a system sized to an average South Dakota home (994 kWh/month).
| Place | kWh per kW | System | Cost | Payback | 25-yr savings |
|---|---|---|---|---|---|
| Sioux Falls | 1,409 | 8.8 kW | $31,680 | 25+ yrs | −$1,545 |
| Rapid City | 1,460 | 8.4 kW | $30,240 | 25+ yrs | −$433 |
| Aberdeen | 1,356 | 8.8 kW | $31,680 | 25+ yrs | −$2,678 |
| Brookings | 1,385 | 8.8 kW | $31,680 | 25+ yrs | −$2,058 |
| Watertown | 1,343 | 9.2 kW | $33,120 | 25+ yrs | −$3,091 |
| Mitchell | 1,424 | 8.4 kW | $30,240 | 25+ yrs | −$1,168 |
| Yankton | 1,396 | 8.8 kW | $31,680 | 25+ yrs | −$1,823 |
| Pierre | 1,420 | 8.4 kW | $30,240 | 25+ yrs | −$1,250 |
| Huron | 1,387 | 8.8 kW | $31,680 | 25+ yrs | −$2,015 |
| Spearfish | 1,392 | 8.8 kW | $31,680 | 25+ yrs | −$1,908 |
| Vermillion | 1,369 | 8.8 kW | $31,680 | 25+ yrs | −$2,400 |
| Brandon | 1,367 | 8.8 kW | $31,680 | 25+ yrs | −$2,443 |
| Box Elder | 1,459 | 8.4 kW | $30,240 | 25+ yrs | −$454 |
| Rapid Valley | 1,469 | 8.4 kW | $30,240 | 25+ yrs | −$250 |
| Ellsworth Air Force Base | 1,459 | 8.4 kW | $30,240 | 25+ yrs | −$454 |
| Madison | 1,387 | 8.8 kW | $31,680 | 25+ yrs | −$2,015 |
| Sturgis | 1,418 | 8.8 kW | $31,680 | 25+ yrs | −$1,352 |
| Belle Fourche | 1,415 | 8.8 kW | $31,680 | 25+ yrs | −$1,416 |
| Harrisburg | 1,411 | 8.8 kW | $31,680 | 25+ yrs | −$1,502 |
| Tea | 1,394 | 8.8 kW | $31,680 | 25+ yrs | −$1,866 |