Green Mountain Power electric rates and bill calculator

A Green Mountain Power bill for 1,000 kWh on Schedule 1 is $277.21 in November 2026 (27.7¢ per kWh, before tax). This calculator uses the Green Mountain Power Residential Service tariff (Schedule 1) and its riders. Type the kWh from your bill. The result shows each charge on a different line.

  • Schedule 1
  • Effective: Bills rendered on or after October 1, 2026
  • Last checked: October 16, 2026

Green Mountain Power bill calculator

Find the name of your rate schedule on your bill.

Use the meter read dates from your bill (optional)

The calculation runs in your browser. Your kWh and amounts are not sent to us; they are saved only if you click Save this bill, and then only in this browser. Privacy

NOTE

The result is an estimate. Your bill can show other charges, for example sales tax. Compare the result with your bill.

Current Green Mountain Power electricity rates

A Green Mountain Power bill for 1,000 kWh on Schedule 1, with all charges, at the rates in effect at our last check on October 16, 2026:

Green Mountain Power average price per kWh at 1,000 kWh
Billing monthBillAverage price per kWh
November$277.2127.72¢
Base rates now
ChargeRate
Customer charge$0.6600 per day
Energy charge22.639¢ per kWh

The average price includes the base rates and the riders. See all rates and riders, the example bills and the sources.

Average Green Mountain Power bill

In 2025, the average Green Mountain Power home that bought its power from Green Mountain Power used 601 kWh a month and paid $139.90 a month (23.3¢ per kWh). The average for all homes in Vermont was $134.78 (591 kWh, 22.8¢ per kWh). These are yearly averages from the EIA-861 data of the U.S. Energy Information Administration, at the rates of 2025. See the average electric bill in Vermont and in each state. To turn the watts of an appliance into dollars, use the electricity cost calculator.

For an apartment: with the EIA average kWh of small homes in the Northeast, a 1-bedroom apartment (402 kWh) costs about $125.08 a month on 1 and a 2-bedroom apartment (578 kWh) about $169.85 (November rates, before taxes). See the apartment electric bill at each utility.

Help paying your Green Mountain Power bill

  • Energy Assistance Program (EAP): A 25% discount each month on the customer charge and the energy charge. There may also be arrearage forgiveness for eligible customers in the program.
  • Payment Plan: A manageable no-interest payment plan to get your account back on track.
  • Budget Billing: Your usage is averaged across the year so your monthly payment is steady. The account is reviewed every 4 months.

See all 3 Green Mountain Power bill help programs, with who qualifies, how to apply, state energy assistance and the shutoff rules.

Green Mountain Power rate increases

Rate cases of Green Mountain Power that are pending or were decided since 2025, from the official documents. The calculator above uses the rates in effect now; a pending request is not in it.

See all pending electric rate increases.

EV charging cost on Green Mountain Power

Charging an electric car for 1,000 miles a month (300 kWh) overnight on weekdays adds this much to a 1,000 kWh November bill:

Green Mountain Power: extra cost of home EV charging
PlanA monthPer 100 milesCharging period
1Residential Service$76.33$7.63All hours

Use your own miles, car and charging time in the EV charging cost calculator.

Solar savings on Green Mountain Power

With the solar output of Burlington (PVWatts), a 6 kW system makes about 7,329 kWh a year. On a home that uses 1,000 kWh a month, it cuts the yearly bill by:

Green Mountain Power: yearly bill savings of a 6 kW solar system
PlanBill a year without solarSavings a year
1Residential Service$3,326.52$1,864.49

If each solar kWh replaces a kWh bought at the full price within the month (monthly net metering). A lower credit for the power you send to the grid, or a solar fee, makes the savings smaller. Use your own kWh, city and system in the solar savings calculator.

Green Mountain Power rebates

Green Mountain Power rebates and energy-saving programs: the page lists EV chargers, batteries, heat pumps, water heaters, income-qualified, appliances. See also the home energy rebates in Vermont. Checked October 22, 2026.

Green Mountain Power outages, payments and customer service

Official links and phone numbers from the Green Mountain Power website, checked October 20, 2026. This site is not part of Green Mountain Power: for an outage or a question about your account, use these links.

If you see a downed power line, stay away from it and call Green Mountain Power or 911.

Terms on this tariff: Customer charge, Energy charge, Energy efficiency charge, Storm recovery charge. See the electric bill glossary.

SOLAR AND EV

Do you want solar panels or an electric vehicle? The US solar calculator and the EV charging from solar calculator on ProSolarCalc estimate the savings and the payback. Also read what changed in the federal solar tax credit in 2026. Sri Murugan Systems also makes ProSolarCalc.

Do you have your hourly usage file? Compare Green Mountain Power plans with your Green Button data.

Why is my Green Mountain Power bill so high? Check your bill against Green Mountain Power 1. See the Green Mountain Power rate changes. How does Green Mountain Power compare? See the monthly bill comparison.

What does an appliance cost to run on this tariff? Use the appliance cost tool with Green Mountain Power 1.

The rates in this calculator

These values come from the official tariff documents of Green Mountain Power. The Vermont Public Utility Commission approves these tariffs.

Base rates: Schedule 1
ChargeRate
Customer charge$0.6600 per day
Energy charge22.639¢ per kWh
Riders and fees that the calculator adds
ItemRateApplies toSchedule
Rate plan and storm adjustments
The power supply and retail revenue adjustor and the major storm adjustor (5.76%) plus the FY25 earnings sharing adjustor (1.87%). GMP can change the percentage each quarter. The earnings sharing part ends on March 30, 2027.
7.63% Customer charge + Energy charge GMP Alternative Regulation Plan, Record of Filings, Tariff v. V.P.U.C. 10, Page 4 of 6 (Rate Plan and Storm Adjustments)
Energy efficiency charge
The Vermont PUC sets this charge each year. All of the money goes to Efficiency Vermont. Net-metered customers without a production meter pay a fixed $6.49 a month instead.
1.074¢ per kWh All kWh Vermont PUC, Order Approving Efficiency Vermont's Energy Efficiency Charge Rates for 2026, Appendix A (Residential)
Electric assistance program fee
A non-bypassable fee for each meter used for retail billing. It pays for the GMP discount program for income-eligible customers.
$1.50 per month Each account GMP Residential Electric Assistance Program Rider, Tariff v. V.P.U.C. 10, Page 2 of 3 (EAP Fee)

Minimum monthly bill: Rate 1 does not have a minimum charge. The customer charge ($0.660 a day) and the $1.50 assistance program fee apply each month.

A bill that crosses a season or rate change: the calculator uses the season of the billing month and does not split it. GMP applies new rates to bills rendered on or after the effective date. The calculator uses the rates of the billing month and does not split the bill.

Example bills for 1,000 kWh

These examples use 1,000 kWh and 30 days. Each column uses the rates of the billing month in its heading. The examples do not include taxes.

LineAll year (November)
Customer charge$19.80
Energy charge$226.39
Rate plan and storm adjustments$18.78
Energy efficiency charge$10.74
Electric assistance program fee$1.50
Total before tax$277.21

How the calculator gets the total

  1. It multiplies the customer charge by the number of days in the billing period.
  2. It multiplies the kWh by the rate of the energy charge.
  3. It adds the rate plan and storm adjustments as a percentage of the customer charge and the energy charge.
  4. It multiplies the kWh by the rate of the energy efficiency charge.
  5. It adds the electric assistance program fee. This is a fixed amount for each month.

The calculator rounds each line to the cent. Each percentage uses the rounded lines.

Items that the calculator does not include

  • The Residential Electric Assistance Program (EAP) discount rate for income-eligible customers ($0.495 a day and $0.16979 per kWh).
  • Net metering credits, and the fixed $6.49 monthly energy efficiency charge for net-metered customers without a production meter.
  • Optional riders and programs (for example the Critical Peak Rider, Bring Your Own Device, energy storage and renewable energy riders).
  • Other residential rates: Rate 3, Rate 9, Rate 11, Rate 14, Rate 22, Rate 72 and Rate 74.
  • Customers with more than 7,600 kWh a month on average over four billing months (GMP moves them to Rate 11).
  • Vermont sales tax on parts of the bill that are not energy. Residential customers do not pay sales tax on energy.

Sources and last check

We read each value from the official documents below. The approval column shows the docket, order or advice number that is printed on each sheet. Last check: October 16, 2026.

DocumentUsed forEffectiveApproval
GMP Residential Service Rate Schedule, Company Designation 1, Tariff v. V.P.U.C. 10, Page 1 of 2Customer charge, energy chargeBills rendered on or after October 1, 2026Not printed on the sheet
GMP Alternative Regulation Plan, Record of Filings, Tariff v. V.P.U.C. 10, Page 4 of 6 (Rate Plan and Storm Adjustments)Rate plan and storm adjustmentsOctober 1, 2026 to September 30, 2027Case No. 25-2967-TF (FY25 Earnings Sharing Adjustor); Case No. 26-1591-TF (not printed on the sheet)
Vermont PUC, Order Approving Efficiency Vermont's Energy Efficiency Charge Rates for 2026, Appendix A (Residential)Energy efficiency chargeBills rendered on and after February 1, 2026Case No. 25-1126-INV
GMP Residential Electric Assistance Program Rider, Tariff v. V.P.U.C. 10, Page 2 of 3 (EAP Fee)Electric assistance program feeBills rendered on or after October 1, 2026 (fee in effect since March 5, 2023)Not printed on the sheet

Recent rate changes

ChargeDateOld valueNew value
Customer charge
FY27 base rate increase of 5.51% (Case No. 26-0096-TF).
Bills rendered on or after October 1, 2026$0.63 per day$0.66 per day
Energy charge
FY27 base rate increase of 5.51% (Case No. 26-0096-TF).
Bills rendered on or after October 1, 202621.457¢ per kWh22.639¢ per kWh
Energy efficiency charge
2025 rate from the PUC order of 11/01/2024 in Case No. 24-1832-INV.
Bills rendered on and after February 1, 20261.106¢ per kWh1.074¢ per kWh

Calculate what a change does to your bill. See all recent rate changes.

We read the Rate 1 sheet (bills rendered on or after October 1, 2026), the Record of Filings sheet (7.63% Rate Plan and Storm Adjustments, October 1, 2026 to September 30, 2027) and the Residential Electric Assistance Program Rider ($1.50 per meter per month) from the GMP rates page. The Vermont PUC approved the 5.51% base rate increase (Case No. 26-0096-TF, order of 9/30/2026) and the 7.63% line item (Case No. 26-1591-TF, order of 9/16/2026). The energy efficiency charge (1.074 cents per kWh) comes from Appendix A of the PUC order in Case No. 25-1126-INV. GMP says that the percentage applies to the customer charge and the kWh charge. The test bills are hand calculations. Method check: with the October 2025 values (Rate 1 sheet of October 1, 2025, 5.69%, 0.72% storm fund and the 2025 EEC of 1.106 cents), our method gives $149.08 for 533 kWh and 30 days. This is the total of the GMP sample energy statement (bill date 10/17/25), and each of its six lines agrees. GMP sample energy statement (bill date 10/17/25, 533 kWh, $149.08).

Commission check (2026-10-16). The Vermont PUC approved the compliance tariffs with the 5.51% base rate increase for bills rendered on or after October 1, 2026 (Case No. 26-0096-TF). The PUC approved the 7.63% Rate Plan and Storm Adjustments line item for October 1, 2026 (Case No. 26-1591-TF). GMP can change the line item each quarter. The FY25 earnings sharing part (1.87%) ends on March 30, 2027. Case No. 26-0096-TF, Order Approving Compliance Tariffs, September 30, 2026 (ePUC). Case No. 26-1591-TF, Order Approving Tariff Change, September 16, 2026 (ePUC). Case No. 25-1126-INV, Order Approving 2026 EEC Rates, October 31, 2025 (ePUC).

Questions about Green Mountain Power bills

What is the average Green Mountain Power electric bill?

In 2025, the average Green Mountain Power home that bought its power from Green Mountain Power used 601 kWh a month and paid $139.90 a month, 23.3¢ per kWh (EIA-861 data). That is more than the Vermont average of $134.78. Your bill depends on your kWh: use the calculator on this page with the kWh from your bill.

What is the rate plan and storm adjustments line?

It is a percentage of the customer charge and the energy charge. It collects or returns differences in power supply costs, retail revenue and major storm costs. From October 1, 2026, it is 7.63%.

Why is the customer charge a daily charge?

Rate 1 has a customer charge of $0.660 for each day of the billing period. A 30-day bill has a customer charge of $19.80.

Who sets the energy efficiency charge?

The Vermont Public Utility Commission sets it each year. For bills rendered on and after February 1, 2026, the residential charge is 1.074 cents per kWh. GMP sends the money to Efficiency Vermont.

Where is the Extreme Storm Restoration Fund line?

This line stopped on September 30, 2026. GMP used the remaining balance to lower the rate plan and storm adjustments percentage.

Why is my Green Mountain Power bill so high?

The most common reason is more kWh: heating and air conditioning use much electricity. Rate changes: Green Mountain Power changed its rates 2 times in the last 12 months, most recently on October 1, 2026. More days in the billing period also add kWh and daily charges. To see which reason applies to your bill, use the Why is my bill so high tool on this site: type your bill and an earlier bill, and it shows each reason in dollars.

Why is my bill different from the result?

Your bill can include sales tax, a city fee, a discount, a late fee or a different number of days. Type the number of days from your bill. To add tax, type the tax rate from your bill in the tax field. If your tariff has a discount program, select it in the options.

Where do I find my kWh?

Your bill shows the kWh for the billing period. Look for the meter reading section or the usage section.

utilityratecalc.com is not part of Green Mountain Power Corporation or the Vermont Public Utility Commission. For the official values, use your bill and the tariff of Green Mountain Power.