HomeWattCost

Green Mountain Power rates

GMP has 2 residential plans modelled here. For a typical Vermont home using 591 kWh a month, the cheapest is Rate 11, at about $173 a month.

Investor-owned 226,675 residential customers (EIA-861, 2024) Tariffs checked September 28, 2026

Typical all-in priceRate 11

01234567890123456789.0123456789¢/kWh
Rate 01$173/mo
Rate 11$173/mo

Residential plans

PlanTypeFixed/moJuly pricesJanuary pricesJuly weekday windows
Rate 01
Residential Service
Flat $23.12 25.4¢ all hours 25.4¢ all hours None
Rate 11
Optional Residential Time of Day
Time-of-use $30.20 Off-peak 17.6¢ · Peak 39.8¢ Off-peak 17.6¢ · Peak 39.8¢ Peak 1 pm–9 pm

Rate 11: price by hour

July weekday. Same pricing all year.

Off-peakPeak
17.6¢39.8¢17.6¢12a3a6a9a12p3p6p9p12a

Charging an EV on GMP

1,000 miles a month in a Tesla Model Y Long Range AWD (275 kWh from the wall, EPA 27.5 kWh/100 mi) at 7.2 kW, added to a typical Vermont home’s use, on each plan’s cheapest start hour versus plugging in at 6 pm. Averaged over the year.

PlanBest startCharging, best startCharging from 6 pmWhole bill with EV
Rate 01Any$70/mo$70/mo$243/mo
Rate 1112 am$48/mo$92/mo$221/mo

With an EV charged at its best hour, the cheapest plan overall is Rate 11. Compare plans on your own usage.

How GMP’s plans work

Rate 01 (Residential Service). One price per kWh at every hour, all year: 25.4¢. Shifting use to other hours changes nothing on this plan; using less is the only lever. Fixed charge: $23.12 a month.

Rate 11 (Optional Residential Time of Day). Peak 1 pm–9 pm on July weekdays; 8 of 24 hours carry the top price of 39.8¢. The cheapest July weekday hour costs 17.6¢, so moving 1 kWh out of the top hours saves 22.2¢. January weekdays range from 17.6¢ to 39.8¢. Weekends follow a different schedule from weekdays. Fixed charge: $30.20 a month.

Prices on this page are all-in per kWh, before taxes: base rates, supply and every per-kWh rider in the utility’s current tariff sheets. Your bill shows them as separate lines, and riders can change between tariff revisions.

As a cross-check, GMP billed its residential customers an average of 22.09¢ per kWh in 2024 (revenue ÷ sales, EIA-861). A plan taken from URDB is shown only if its all-in price is consistent with that figure, adjusted for Vermont’s price change since.

Sources for each plan

PlanEffectiveSeasonsSolar exportsSource and status
Rate 01
Transcribed from the utility’s tariff
October 1, 2026 Same pricing all year Net Metering Checked September 28, 2026
GMP Rate 1 Residential Service, effective with bills rendered on or after Oct 1, 2026 · GMP Rate 11 Residential Time-of-Use, effective with bills rendered on or after Oct 1, 2026 · GMP Alternative Regulation Plan Record of Filings, eff. Oct 1, 2026 (Rate Plan and Storm Adjustments 7.63%) · GMP Residential Electric Assistance Program Rider, eff. Oct 1, 2026 (EAP fee) · Efficiency Vermont Summary of 2026 Energy Efficiency Charges (effective 2/1/26), as posted by Vermont Electric Cooperative · GMP FY27 Rate Filing Schedules (Rev. May 27, 2026), Schedule G: Major Storm Restoration Fund ceases Sept 30, 2026 · GMP Sample Energy Statement (shows how the percent adjustor and EEC are billed) · GMP Rate & Regulation Plan Filings page (Oct 1, 2026 compliance tariffs)
Rate 11
Transcribed from the utility’s tariff
October 1, 2026 Same pricing all year Net Metering Checked September 28, 2026
GMP Rate 1 Residential Service, effective with bills rendered on or after Oct 1, 2026 · GMP Rate 11 Residential Time-of-Use, effective with bills rendered on or after Oct 1, 2026 · GMP Alternative Regulation Plan Record of Filings, eff. Oct 1, 2026 (Rate Plan and Storm Adjustments 7.63%) · GMP Residential Electric Assistance Program Rider, eff. Oct 1, 2026 (EAP fee) · Efficiency Vermont Summary of 2026 Energy Efficiency Charges (effective 2/1/26), as posted by Vermont Electric Cooperative · GMP FY27 Rate Filing Schedules (Rev. May 27, 2026), Schedule G: Major Storm Restoration Fund ceases Sept 30, 2026 · GMP Sample Energy Statement (shows how the percent adjustor and EEC are billed) · GMP Rate & Regulation Plan Filings page (Oct 1, 2026 compliance tariffs)

Plans marked “Checked” were transcribed from the utility’s current tariff and rider sheets, all charges included, and are re-checked on the date shown in each file. Other plans come from the OpenEI U.S. Utility Rate Database (CC BY 4.0) and have not yet been checked line by line against the utility’s tariff. Always confirm the current rates on your utility’s website before switching plans.

Run the numbers on GMP