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We serve MA, NH, CT, RI, ME, VT, NJ, PA, and TX
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NuWatt designs, installs, and manages solar, battery, heat pump, and EV charger systems across 9 states. One company, one warranty, one point of contact.
Get a Free QuoteAt 22¢/kWh, every kilowatt-hour your solar system produces instead of buying from the grid saves you real money. Calculate exactly how much solar covers your EV — sized for New Hampshire's sun and your driving habits.
New Hampshire's 4.0 peak sun hours and $0.22/kWh electricity rates make solar a strong investment, even without a dedicated state solar incentive program. NH homeowners rely primarily on net metering (available up to 1 MW) and smart system sizing to maximize returns. Eversource NH offers a Time-of-Use rate that rewards off-peak EV charging — typically 11pm to 7am at reduced rates — making the solar+off-peak-grid strategy particularly effective. With no state income tax, your solar savings are entirely tax-free at the state level, an advantage worth factoring into your payback calculation.
Major utilities
Net Metering (up to 1 MW)
Credit for excess solar exported to the grid at retail rate
Eversource TOU Rate
Time-of-use rate rewards off-peak EV charging (typically 11pm–7am)
NH Saves
Rebates on smart EV chargers through participating utilities
EV charger rebate: NH Saves offers rebates on smart Level 2 EV chargers through Eversource NH and Liberty Utilities.
Pre-loaded with New Hampshire's 4 peak sun hours and 22¢/kWh rate. Adjust to your exact situation.
Efficiency: 2.8 mi/kWh — Tesla Model Y, VW ID.4, Ford Mustang Mach-E
4 peak sun hours/day
Yes. New Hampshire has net metering available up to 1 MW system size through all major utilities including Eversource NH, Liberty Utilities, and Unitil. Excess solar production earns credits at the retail electricity rate, which can be applied against your bill in subsequent months. For EV charging purposes, net metering credits effectively eliminate the cost of off-peak charging that occurs beyond your daytime solar window.
New Hampshire does not have a dedicated state solar production incentive like Massachusetts SMART 3.0. NH homeowners rely on net metering, and the NH Saves rebate program for equipment including smart EV chargers. The absence of a state production incentive means NH solar sizing should focus on maximizing net metering bill offset.
The calculator uses real state peak sun hours, current utility rate data, and manufacturer-standard vehicle efficiency figures. System derate factor is 0.80 (NREL standard for real-world losses). Estimates are within ±15% of a precise NuWatt design, which factors in your actual roof orientation, shading, and local utility interconnection rules. Use the calculator for planning; get a NuWatt quote for a binding design.
Yes — and it is often the most cost-effective approach. NuWatt coordinates solar system design, panel installation, EV charger wiring, and permit filing as a single project. Combining the work reduces labor costs, requires only one set of permits and utility paperwork, and lets us right-size the electrical panel upgrade to handle both loads simultaneously.
Get a custom EV + solar design sized for your actual driving needs — zero pressure, backed by NuWatt's local install team.
EV + Solar planning guides for other NuWatt states: