States › Vermont › Green Mountain Power Corp
investor-owned utility · EIA utility 7601
Green Mountain Power Corp
Average price is revenue divided by sales for the sector and year; it is not a tariff rate. Reliability figures are as reported by utilities to EIA on Form 861 and may use different calculation methods. Annual figures: Form EIA-861 for 2024, final release. Monthly state figures run to July 2026.
In its Form EIA-861 filing for 2024, Green Mountain Power Corp, an investor-owned utility, reported 226,675 residential customers in Vermont, with a service territory that touches 13 counties.
Its average residential price that year was 22.09¢ per kilowatthour, about the same as the Vermont average of 21.90¢ and 34% above the US average of 16.48¢. The figure is residential revenue divided by residential sales, so it folds in fixed charges, riders and every rate schedule the utility bills under.
That works out to an average residential bill of $129.46 a month on average use of 586 kWh a month. Across Vermont the average bill was $125.66 on 574 kWh, so a bill gap reflects how much power households use as well as what each kilowatthour costs.
For reliability it reported a SAIDI of 667.2 minutes per customer with major event days included and 281.4 minutes with them excluded, calculated under another method. The median among Vermont utilities reporting was 781.5 minutes with major event days; this utility's figure is 15% below that median.
The average price is up 25.2% on 2019, against up 23.7% for Vermont as a whole, and up 5.1% on 2023. EIA's early release for 2025, which has not been fully edited, shows 23.29¢.
Compared with Vermont, the US and other investor-owned utilities
| Measure, 2024 | This utility | Investor-owned utilities, US median | Vermont | United States |
|---|---|---|---|---|
| Average residential price per kWh | 22.09¢ | 16.17¢ | 21.90¢ | 16.48¢ |
| Average monthly residential bill | $129.46 | $131.47 | $125.66 | $142.26 |
| Average monthly use, kWh | 586 | 787 | 574 | 863 |
| Residential price change, 1 year | +5.1% | — | +5.2% | +3.0% |
| Residential price change, 5 years | +25.2% | — | +23.7% | +26.7% |
| SAIDI, all events (minutes) | 667.2 | 278.7 | 781.5 median | 184.5 median |
| SAIDI, without major event days | 281.4 | 106.5 | 256.6 median | 99.8 median |
State and US prices, bills and use are EIA's own averages over every customer. The ownership column and the reliability columns are medians across utilities with at least 1,000 residential customers, computed on this site from the final 2024 file. In Vermont this utility's price ranks 2 of 3, counting from the highest.
Average price by year
Green Mountain Power CorpVermont averageUS average
Year by year
| Year | ¢ per kWh | Vermont ¢ | Monthly bill | kWh a month | Residential customers | All sales |
|---|---|---|---|---|---|---|
| 2025 early release | 23.29¢ | 22.92¢ | $139.90 | 601 | 227,727 | 4.1 TWh |
| 2024 | 22.09¢ | 21.90¢ | $129.46 | 586 | 226,675 | 4.1 TWh |
| 2023 | 21.02¢ | 20.82¢ | $120.69 | 574 | 225,952 | 4 TWh |
| 2022 | 20.37¢ | 19.93¢ | $118.24 | 581 | 225,059 | 4.1 TWh |
| 2021 | 19.58¢ | 19.26¢ | $113.61 | 580 | 225,106 | 4.1 TWh |
| 2020 | 20.00¢ | 19.54¢ | $116.32 | 582 | 222,757 | 4 TWh |
| 2019 | 17.65¢ | 17.71¢ | $99.27 | 562 | 222,599 | 4.1 TWh |
| 2018 | 18.08¢ | 18.02¢ | $103.95 | 575 | 221,911 | 4.2 TWh |
| 2017 | 17.61¢ | 17.68¢ | $97.18 | 552 | 221,420 | 4.1 TWh |
| 2016 | 17.27¢ | 17.37¢ | $97.44 | 564 | 220,612 | 4.2 TWh |
| 2015 | 16.91¢ | 17.09¢ | $97.20 | 575 | 220,648 | 4.2 TWh |
| 2014 | 17.44¢ | 17.47¢ | $102.56 | 588 | 219,910 | 4.3 TWh |
| 2013 | 17.08¢ | 17.14¢ | $100.54 | 589 | 220,367 | 4.3 TWh |
Bundled residential service only in the price, bill and use columns. Bill = residential revenue ÷ customers ÷ 12; use = residential sales ÷ customers ÷ 12. EIA describes its early release as not fully edited; it is shown for this utility alone and enters no average, median or rank on this site.
Month by month
Green Mountain Power CorpVermont average
Sales by sector, 2024
| Sector | Customers | Sales | Share of sales | Revenue | ¢ per kWh, bundled |
|---|---|---|---|---|---|
| Residential | 226,675 | 1.6 TWh | 39% | $352,142,000 | 22.09¢ |
| Commercial | 48,745 | 1.5 TWh | 36% | $283,180,000 | 19.25¢ |
| Industrial | 74 | 1 TWh | 25% | $110,540,000 | 10.84¢ |
Customers, sales and revenue count every service type the utility reported (bundled, energy-only and delivery-only). The price column uses bundled service alone, because part-bill revenue would understate it. Sources of energy: 4.9 TWh in total, of which 15.8% was its own net generation and 4 TWh was bought wholesale; summer peak demand 774 MW.
Reliability
Minutes of sustained interruption per customer in 2024, as the utility reported them under another method. SAIFI: 2.49 interruptions per customer with major event days, 1.70 without; CAIDI 268.0 minutes per interruption. EIA's Vermont total across all reporting utilities was 696.7 minutes with major event days and 275.0 without. Major event days are storms and similar events that a utility's chosen method sets apart; methods differ, so treat comparisons as approximate. What SAIDI and SAIFI mean.
| Year | SAIDI, all events | SAIDI, no major events | SAIFI, all events | SAIFI, no major events | Method |
|---|---|---|---|---|---|
| 2025 early release | 264.6 | 189.6 | 1.75 | 1.58 | Other |
| 2024 | 667.2 | 281.4 | 2.49 | 1.70 | Other |
| 2023 | 782.4 | 223.8 | 2.51 | 1.61 | Other |
| 2022 | 970.8 | 280.8 | 2.77 | 1.97 | Other |
| 2021 | 327.6 | 269.4 | 2.25 | 2.08 | Other |
| 2020 | 270.0 | 270.0 | 1.97 | 1.97 | Other |
| 2019 | 474.8 | 168.6 | 2.02 | 1.46 | Other |
| 2018 | 909.1 | 245.2 | 2.69 | 1.83 | Other |
| 2017 | 735.3 | 256.1 | 2.52 | 1.93 | Other |
| 2016 | 382.6 | 285.2 | 1.97 | 1.84 | Other |
| 2015 | 207.6 | 207.6 | 1.74 | 1.74 | Other |
| 2014 | 763.0 | 217.0 | 2.24 | 1.54 | Other |
| 2013 | 444.0 | 259.8 | 2.33 | 1.91 | Other |
Generation at plants it operates, 2025
- Hydro 53.2% 280.7 GWh
- Wind 36.2% 190.7 GWh
- Solar 10.3% 54.2 GWh
- Petroleum 0.4% 2 GWh
Net generation of 527.6 GWh at power plants this utility operates, from Form EIA-923. It is not the mix delivered to customers: utilities also buy power wholesale (4 TWh in 2024), sell generation to others and may co-own plants that another company operates.
Counties in its service territory
- Addison County
- Bennington County
- Caledonia County
- Chittenden County
- Essex County
- Franklin County
- Lamoille County
- Orange County
- Orleans County
- Rutland County
- Washington County
- Windham County
- Windsor County
Counties the utility listed on Form EIA-861 for 2024. Listing a county does not mean the utility serves all of it.
Other utilities in Vermont
| Utility | Ownership | Residential customers | ¢ per kWh | Monthly bill | SAIDI, all events | SAIDI, no major events |
|---|---|---|---|---|---|---|
| Vermont Electric Cooperative, Inc | Cooperative | 35,964 | 23.26¢ | $129.86 | 895.8 | 231.8 |
| City of Burlington Electric | Municipal | 17,861 | 18.88¢ | $79.26 | — | — |
All Vermont utilities · Investor-owned utilities nationwide
Questions and answers
How much does electricity cost from Green Mountain Power Corp?
Residential customers paid an average of 22.09¢ per kilowatthour in 2024. EIA derives this by dividing residential revenue by residential sales; it is an average across all rate schedules and charges, not a tariff rate.
How does that compare with Vermont?
The Vermont average residential price in 2024 was 21.90¢ and the US average 16.48¢; Green Mountain Power Corp was about the same as the state figure. Among 3 utility filings with a bundled residential price in Vermont, it had the 2nd highest.
What is the average Green Mountain Power Corp bill?
$129.46 a month in 2024, on average residential use of 586 kWh a month (annual revenue and sales divided by customers and by twelve). The Vermont average was $125.66 on 574 kWh.
How reliable is Green Mountain Power Corp service?
It reported 667.2 minutes of interruption per customer (SAIDI) including major event days and 281.4 minutes excluding them, with 2.49 interruptions per customer (SAIFI) in 2024. Utilities calculate these under differing methods, so comparisons are approximate.
Is the Green Mountain Power Corp price rising?
The average residential price was up 5.1% in 2024 compared with 2023 and up 25.2% compared with 2019. EIA's early, not fully edited release for 2025 shows 23.29¢.
Which counties does Green Mountain Power Corp serve?
Its Form EIA-861 service territory lists 13 counties, including Addison County, VT, Bennington County, VT, Caledonia County, VT, Chittenden County, VT, Essex County, VT and Franklin County, VT. A county can appear in several utilities' territories.
Provenance
Source: U.S. Energy Information Administration. Annual figures are from Form EIA-861 (sales to ultimate customers, reliability, operational data and service territory files), final release for 2024, respondent "Green Mountain Power Corp", utility number 7601; the 2025 row is from EIA's early release. Monthly utility figures are from the Form EIA-861M sample. State and US averages are from the Form EIA-861M sales and revenue workbook, published through July 2026. Generation by fuel is from Form EIA-923, 2025 final. All are US government works in the public domain. Page built 1 Oct 2026. Errors in processing are corrected at the next build; see corrections. For tariffs and rate schedules, consult the utility or the state utility commission.