Solar Panel Cost & Payback in New Hampshire
Home solar in New Hampshire pays back in a median 9.9 years across the 24 places we cover, at an average electricity price of 26.8¢/kWh and about $3.70 per watt installed. Dover has the fastest payback (9.4 years).
Solar estimates for New Hampshire cities and towns
Sorted by fastest payback. Each figure is for a system sized to an average New Hampshire home (619 kWh/month).
| Place | kWh per kW | System | Cost | Payback | 25-yr savings |
|---|---|---|---|---|---|
| Dover | 1,354 | 5.6 kW | $20,720 | 9.4 yrs | $44,240 |
| Portsmouth | 1,341 | 5.6 kW | $20,720 | 9.5 yrs | $43,616 |
| Hampton | 1,334 | 5.6 kW | $20,720 | 9.5 yrs | $43,281 |
| Somersworth | 1,300 | 6.0 kW | $22,200 | 9.7 yrs | $44,624 |
| Rochester | 1,294 | 6.0 kW | $22,200 | 9.8 yrs | $44,316 |
| Windham | 1,286 | 6.0 kW | $22,200 | 9.8 yrs | $43,905 |
| Durham | 1,283 | 6.0 kW | $22,200 | 9.9 yrs | $43,751 |
| Salem | 1,281 | 6.0 kW | $22,200 | 9.9 yrs | $43,648 |
| Derry | 1,275 | 6.0 kW | $22,200 | 9.9 yrs | $43,339 |
| Pelham | 1,275 | 6.0 kW | $22,200 | 9.9 yrs | $43,339 |
| Derry Village | 1,274 | 6.0 kW | $22,200 | 9.9 yrs | $43,288 |
| Bedford | 1,272 | 6.0 kW | $22,200 | 9.9 yrs | $43,185 |
| Laconia | 1,270 | 6.0 kW | $22,200 | 9.9 yrs | $43,082 |
| Exeter | 1,269 | 6.0 kW | $22,200 | 9.9 yrs | $43,031 |
| Nashua | 1,264 | 6.0 kW | $22,200 | 10.0 yrs | $42,774 |
| East Concord | 1,260 | 6.0 kW | $22,200 | 10.0 yrs | $42,568 |
| Manchester | 1,258 | 6.0 kW | $22,200 | 10.0 yrs | $42,465 |
| Merrimack | 1,257 | 6.0 kW | $22,200 | 10.0 yrs | $42,414 |
| Londonderry | 1,255 | 6.0 kW | $22,200 | 10.1 yrs | $42,311 |
| Concord | 1,254 | 6.0 kW | $22,200 | 10.1 yrs | $42,260 |
| Keene | 1,241 | 6.0 kW | $22,200 | 10.2 yrs | $41,592 |
| Berlin | 1,230 | 6.4 kW | $23,680 | 10.2 yrs | $43,761 |
| Claremont | 1,213 | 6.4 kW | $23,680 | 10.4 yrs | $42,829 |
| Lebanon | 1,201 | 6.4 kW | $23,680 | 10.5 yrs | $42,171 |