Green Mountain Power Corp. electricity rates
Investor-owned utility · Vermont · NPCC region · ISONE
Green Mountain Power Corp. is a for-profit, investor-owned utility regulated by the state utility commission, serving 227,727 homes in Vermont. Its residential customers pay an average of 24.29¢/kWh including fixed and delivery charges, 35% more than the U.S. average.
Rate basis: EIA-861M monthly utility data, 12 months ending 2026-07.
What things cost on Green Mountain Power Corp.'s rate
Popular — tap to add, then add more to compare:
Add as many devices as you like to compare them side by side. Search again to add another, or use Duplicate to compare two settings.
Green Mountain Power Corp. bill estimates
| Monthly use | At average all-in rate | Base tariff charges* |
|---|---|---|
| 500 kWh | $121.45 | $131.90 |
| 1,000 kWh | $242.90 | $244.74 |
| 1,500 kWh | $364.35 | $357.59 |
| 2,000 kWh | $485.80 | $470.43 |
*Rate 01 Residential Service (effective 2024-09-30, $19.05/month customer charge), energy and fixed charges from the OpenEI Utility Rate Database. Riders, fuel adjustments and taxes are often billed separately, so real bills usually land closer to the all-in column. Calculate your bill.
Green Mountain Power Corp. residential rate plans
| Plan | Effective | Customer charge | Energy charges |
|---|---|---|---|
| Rate 01 Residential Service | 2024-09-30 | $19.05 | 22.57¢ |
| Rate 74: TOU Electric Vehicle Residential Servicetime-of-use | 2024-10-01 | — | 17.4¢ (12am–1pm, 9pm–12am) · 22.6¢ (1pm–9pm) — summer weekdays |
| Rate 11: Optional Residential TODtime-of-use | 2024-09-30 | $24.69 | 14.6¢ (12am–1pm, 9pm–12am) · 32.9¢ (1pm–9pm) — summer weekdays |
| Rate 61: Residential Time Of Daytime-of-use | 2017-04-01 | $17.94 | 8.0¢ (12am–6am, 10pm–12am) · 18.1¢ (6am–10pm) — summer weekdays |
| Rate 11: Residential Optional Time of Use-Electric Assistance Program (EAP)time-of-use | 2017-04-01 | $14.02 | 15.6¢ (7am–12pm, 4pm–10pm) · 8.2¢ (12am–7am, 12pm–4pm, 10pm–12am) — summer weekdays |
| Rate 14: Residential Time-of-Use & Critical Peaktime-of-use | 2017-04-01 | $18.37 | 10.6¢ (12am–6am) · 60.5¢ (12pm–12am) · 20.2¢ (6am–12pm) — summer weekdays |
| Rate 61: Residential Time Of Day - Electric Assistance Program (EAP)time-of-use | 2017-04-01 | $13.71 | 13.6¢ (6am–10pm) · 6.0¢ (12am–6am, 10pm–12am) — summer weekdays |
| Rate 01: Residential Electric Assistance Program (EAP) | 2017-03-31 | $10.89 | 11.27¢ first 600 kWh, 16.24¢ after |
Source: OpenEI U.S. Utility Rate Database. Rates change. Check the linked tariff or your bill for current figures.
Green Mountain Power Corp. rate history
2015–2025: +38% change in the average residential rate (16.91¢ → 23.29¢). Annual EIA-861 data.
Outages & reliability
Right now
Checking live outages…
Reliability history
| 2025 | Green Mountain Power Corp. | Vermont avg | U.S. avg |
|---|---|---|---|
| Outage minutes per customer (SAIDI) | 265 | 259 | 266 |
| Outages per customer (SAIFI) | 1.75 | 1.85 | 1.34 |
| Average restoration time (CAIDI) | 2 hr 31 min | — | — |
| Outage minutes excluding major storms | 190 | 180 | 121 |
Outages in counties served (2025)
From ORNL EAGLE-I, which tracks customers without power every 15 minutes. These counts cover every utility in each county. Weighted across Green Mountain Power Corp.'s counties, customers averaged 4 hr 6 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Essex | 942 | 34 | 2,084 | 2025-12-19 |
| Windham | 745 | 117 | 5,227 | 2025-05-31 |
| Orleans | 647 | 43 | 8,478 | 2025-01-22 |
| Windsor | 461 | 83 | 4,430 | 2025-03-30 |
| Lamoille | 344 | 39 | 2,186 | 2025-11-24 |
| Orange | 338 | 73 | 4,399 | 2025-04-01 |
| Rutland | 315 | 60 | 5,433 | 2025-03-30 |
| Bennington | 272 | 64 | 2,161 | 2025-10-08 |
| Caledonia | 222 | 56 | 6,063 | 2025-08-23 |
| Addison | 211 | 56 | 3,042 | 2025-10-31 |
| Washington | 195 | 56 | 6,420 | 2025-07-04 |
| Franklin | 95 | 32 | 1,746 | 2025-12-19 |
| Chittenden | 53 | 25 | 4,109 | 2025-11-17 |
Green Mountain Power Corp. service area
Green Mountain Power Corp. serves 13 counties in Vermont and 258 ZIP codes.
Addison, Bennington, Caledonia, Chittenden, Essex, Franklin, Lamoille, Orange, Orleans, Rutland, Washington, Windham, Windsor
Cities: Burlington, South Burlington, Colchester, Rutland, Essex Junction, Hartford, Bennington, Barre, Williston, Montpelier, St Johnsbury, Brattleboro, Winooski, Saint Albans, Middlebury (village), Saint Johnsbury, Morristown, Lyndon, Rockingham, Hinesburg, Stowe, Springfield, Charlotte, Pownal, Bellows Falls, Chester, Ferrisburgh, West Brattleboro, Vergennes, Swanton, White River Junction, White River Junction VA Medical Center, Fair Haven, Manchester Center, Northfield, Windsor, Bristol, West Rutland, Randolph, Milton
Programs, smart meters & solar
| Smart meters (AMI) for homes | 97% |
| Customers with daily usage data online | 227,727 |
| Time-based rate programs | Time-of-use rates, Critical peak pricing |
| Homes on time-based rates | 8,792 |
| Net-metered solar homes | 6,462 |
| Homes in demand response (e.g. thermostat rebates) | 23,259 |
Green Mountain Power Corp. at a glance
| Ownership | Investor-owned utility |
| Services | Generation, Transmission, Distribution, Wholesale Marketing, Retail Marketing |
| Commercial rate | 21.16¢/kWh |
| Industrial rate | 11.89¢/kWh |
| Retail revenue (2025) | $801,900,000 |
| Electricity sold (2025) | 4,144,584 MWh |
| Peak demand | 764 MW summer · 755 MW winter |
| Power from own generation | 14% (rest purchased) |
| Line losses | 4.3% |
| Balancing authority | ISNE |
| EIA utility ID | 7601 |
Other utilities in Vermont
Frequently asked questions
What is Green Mountain Power Corp.'s electricity rate?
Green Mountain Power Corp. residential customers pay an average of 24.29¢ per kWh, all charges included (EIA-861M monthly utility data, 12 months ending 2026-07). That's 2% above the Vermont average of 23.80¢ and 35% above the U.S. average.
What is the average Green Mountain Power Corp. electric bill?
About $146 a month. The average Green Mountain Power Corp. home uses 601 kWh a month. At 1,000 kWh the bill would be about $243.
How many customers does Green Mountain Power Corp. have?
Green Mountain Power Corp. serves 227,727 residential customers and 276,986 customers in total in Vermont, across 13 counties.
How reliable is Green Mountain Power Corp.?
In 2025, the average Green Mountain Power Corp. customer was without power for 4 hr 25 min (SAIDI) over 1.75 interruptions (SAIFI), including major storms. Excluding major event days it was 3 hr 10 min. The Vermont average was 4 hr 19 min and the U.S. average 4 hr 26 min.
Does Green Mountain Power Corp. offer time-of-use rates?
Yes. The OpenEI rate database lists 6 time-of-use residential plans, including Rate 74: TOU Electric Vehicle Residential Service. Running big appliances off-peak can cut their cost. Pick the plan in the calculator above to see by how much.
Does Green Mountain Power Corp. offer net metering for solar?
Green Mountain Power Corp. had 6,462 residential net-metered customers in 2025 with 81.0 MW of capacity. Estimate solar savings at this utility's rate.
Sources: EIA-861 2025 and EIA-861M (through July 2026), OpenEI URDB, ORNL EAGLE-I, U.S. Census. Methodology. Spot an error? Rates change often, so confirm with Green Mountain Power Corp. before making decisions.