Solar by City / New Hampshire / Merrimack
Data last verified: 2026-08Is Solar Worth It in Merrimack, New Hampshire? (2026)
The honest answer depends on four numbers unique to Merrimack: your electricity rate, your solar production, your net metering policy, and your state incentives. Here are the real figures, with sources and dates. City production is a modeled estimate derived from New Hampshire's real NREL PVWatts v8 value adjusted for local latitude.
Solar Snapshot for Merrimack, New Hampshire (2026)
| Residential electricity rate | 26.8¢/kWh (EIA, 2026 YTD May) |
| Solar production (modeled) | ~1260 kWh per kW per year (derived from NREL PVWatts v8 1259 kWh/kW, latitude-adjusted) |
| Net metering | full-retail net metering |
| State tax credit | None in 2026 |
| Rebates / performance | None |
| SREC market | No active SREC market |
| Property tax exemption | No |
| Sales tax exemption | No |
Estimate Your Own Payback in Merrimack
The table above is a 6 kW benchmark using New Hampshire's real inputs. Your home is different — use the Solar ROI Calculator with New Hampshire pre-loaded to get your exact payback, or the 30-second worth-it quiz for a go/no-go verdict.
Merrimack FAQ
How much solar production can I expect in Merrimack?
PVFig models Merrimack at ~1260 kWh per kW installed per year, derived from New Hampshire's NREL PVWatts v8 state value (1259 kWh/kW) adjusted for the city's latitude. This is a modeled estimate — a site-specific PVWatts run with your exact roof azimuth, tilt and shading will differ. Actual output also depends on panel quality and local weather.
What is the estimated solar payback in Merrimack?
At a typical 3.00/W installed cost and 26.8¢/kWh electricity, a 6 kW system in Merrimack has an estimated payback of about 8.4 years. That is one of the faster paybacks in the country.
Does New Hampshire have net metering and a solar tax credit in 2026?
New Hampshire uses full-retail net metering. There is no state income tax credit for residential solar in 2026. The federal residential credit (Section 25D) expired Dec 31, 2025 and does not apply to 2026 installations.
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Read →Compare New Hampshire with nearby states
- Massachusetts — 30.1¢/kWh, ~1302 kWh/kW
- Connecticut — 29.8¢/kWh, ~1252 kWh/kW
- Maine — 29.7¢/kWh, ~1319 kWh/kW
- Rhode Island — 29.5¢/kWh, ~1294 kWh/kW
- Vermont — 23.9¢/kWh, ~1222 kWh/kW
- New York — 29.2¢/kWh, ~1214 kWh/kW