Is solar worth it in Vermont?
A 7.0 kW rooftop system near Burlington produces about 8,551 kWh a year. Priced against 3 current residential tariffs in Vermont, payback runs from 16 years on the best of them to 21 on the worst.
Why the tariff matters more than the panels
Two households in Vermont with identical roofs and identical systems can see paybacks 16 and 21 years apart, purely because they are on different tariffs. Solar produces at midday; households consume in the evening. Only 58% of what these panels make is used as it is made — the rest is exported, and what an exported kWh earns is set by the tariff and by state net metering rules, not by the hardware.
That is why the figures here are computed hour by hour against each real tariff rather than by taking a bill and assuming solar removes a share of it. How this is modeled →
Payback by tariff in Vermont
7.0 kW system at $3.00/W, household using 1000 kWh a month, no incentives. A range means the export credit is not filed with the tariff and the outcome depends on net metering rules — 2 of 3 tariffs here belong to a utility that reports residential net metering.
| Utility | Tariff | Structure | Annual saving | Payback |
|---|---|---|---|---|
| Green Mountain Power Corp | Rate 01 Residential Service | Flat | $1,308 | 16y |
| Washington Electric Coop Inc | Farm & Residential Revenue Classes 1 and 2 | Tiered | $1,215 | 17y |
| Green Mountain Power Corp | Rate 11: Optional Residential TOD | Time-of-use | $1,019 | 21y |
Price it for your own usage and system size →
What would change this
Your roof. Production is modeled for Burlington on a south-facing array at 20° tilt. Shading, orientation and pitch all move it, and solar resource varies within Vermont itself.
Your usage pattern. A household at home during the day self-consumes more and exports less, which shortens payback wherever export credit is poor.
Rising rates. These figures hold today's prices flat. Electricity prices have been rising, and every rise shortens payback — so treat these as a conservative bound.
State and local incentives. Not included here, and in some states they are worth more than the federal credit was. Check your state energy office before deciding.