Solar Panel Cost in Vermont (2026 Estimate)

BySunMetricLab Editorial Team·Independent solar research and calculators

Data last updated September 10, 2026 · ranks #15 of 50 states for modeled payback

Vermont averages about 4.0 peak sun hours a day (below the national average) with an approximate residential electricity rate near 21¢/kWh, in the mid-range nationally. In the model used here, an 8 kW system in Vermont produces roughly 9,340 kWh a year and trims about $2,000 off annual electricity costs, paying back its net cost in about 9.6 years. That is a middle-of-the-pack payback, so whether solar is worth it in Vermont often comes down to your specific rate, roof, and any state or utility incentives.

Estimated system cost and payback in Vermont

Costs assume roughly $3.35/watt installed for Vermont; the net column applies a 30% federal credit for comparison with quotes that include it. Savings and payback use the state's sun hours and rate above.

The 30% federal Residential Clean Energy Credit ended for systems paid for after December 31, 2025 under the 2025 federal budget law. Net-after-credit figures apply only if you still qualify (for example a 2025 expenditure, or a leased system where the installer passes a credit through). Confirm with a tax professional.

What moves the numbers in Vermont

Two inputs drive most of the difference between states: how much sun a system sees and what each offset kilowatt-hour is worth. Vermont's 4.0 sun hours set production, and its roughly 21¢/kWh rate sets what that production saves. The bigger unknowns are your roof, shading, and how your utility compensates exported power, since a lower export rate can pull real savings below the retail-rate figure above.

Net metering and export credits in Vermont

Vermont's net metering rules, set by the Public Utility Commission under Rule 5.100, apply to systems up to 500 kilowatts and credit exports against your bill using a per-kilowatt-hour value tied to a statewide blended residential rate. Two adjustors modify that value: a REC adjustor that adds to the credit if you transfer your renewable energy certificates to the utility and subtracts if you keep them, and a siting adjustor that favors rooftops and preferred locations over open-field installations.

The commission reviews these adjustors on a two-year cycle and has trimmed them in successive updates, so a system permitted in 2026 earns less per exported kilowatt-hour than one from several years ago, though the underlying retail rate has risen. Credits carry forward for twelve months before expiring, which matters in a state where summer surpluses have to cover long, dark winters. Applications go through the PUC's ePUC system with a certificate of public good, and the process is standardized across Green Mountain Power, Burlington Electric, and the cooperatives.

Vermont solar incentives beyond the federal credit

Solar equipment is exempt from Vermont's sales tax, and net metered systems up to 50 kilowatts are exempt from the statewide education property tax, with many towns also opting to exempt them from municipal property tax. There is no state income tax credit for residential solar. The main money in Vermont has shifted toward storage: Green Mountain Power's Bring Your Own Device program pays enrolled battery owners an upfront incentive and bill credits in exchange for letting the utility draw on the battery during peaks, and its Powerwall lease program offers Tesla batteries for a monthly fee.

Efficiency Vermont handles the state's efficiency and heat pump rebates, which can be stacked with solar to cover a larger share of your energy use. Confirm current battery program terms, since incentive levels and enrollment caps have changed more than once.

Utilities and rate plans in Vermont

Green Mountain Power serves about three-quarters of the state, with Burlington Electric Department covering the largest city, Vermont Electric Cooperative and Washington Electric Cooperative serving rural members, and a dozen small municipal utilities buying through the Vermont Public Power Supply Authority. Retail electricity prices are among the highest in the country, which is why net metering credits linked to the residential rate remain valuable even after adjustor reductions. Green Mountain Power also offers time-of-use and electric vehicle rates that reward shifting load to overnight hours. Snow and short winter days reduce output, but the high rates and stable credit structure keep payback periods competitive with sunnier states.