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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 20¢/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 Maine's sun and your driving habits.
Central Maine Power's Time-of-Use rates offer 40% savings on EV charging between 9pm and 7am — a meaningful incentive to charge overnight while your solar generates during the day. Maine's Net Energy Billing (NEB) program calculates net metering credits monthly, valued at the avoided cost rate. Because Maine winters are long and heating fuel costs are high, many homeowners combine solar, battery storage, an EV, and a heat pump into a comprehensive electrification package — where each technology amplifies the savings of the others. NuWatt coordinates all four technologies in a single project, managing permits, incentives, and installation as one.
Major utilities
CMP TOU Rate
EV charging between 9pm–7am at 40% discount off standard rates
Net Energy Billing (NEB)
Monthly net metering credit calculated at the avoided cost rate
Maine State Housing Solar
Financing options for income-qualified homeowners installing solar
EV charger rebate: Central Maine Power's TOU rate offers 40% savings on EV charging between 9pm and 7am.
Pre-loaded with Maine's 4 peak sun hours and 20¢/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
Maine's Net Energy Billing (NEB) program calculates your monthly solar credit based on the value of electricity you export to the grid at the 'avoided cost' rate. This is typically lower than the retail rate you pay for consumption. For EV charging purposes, this means self-consuming your solar production (charging while the sun is out) is more valuable than exporting it.
Maine has limited direct state rebates for residential EV charger installation, though programs evolve annually. Central Maine Power and Versant Power may offer rebates through their demand response programs. The federal Section 30C credit for EV charging equipment remains active through June 30, 2026, for qualifying low-income and rural census tracts. NuWatt will verify your eligibility as part of project planning.
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: