Green Mountain Energy Company
Retail Power Marketer electric utility · Texas · #103 of 3,199 U.S. utilities by customers · EIA utility #7554
Green Mountain Energy Company is a retail power marketer electric utility serving 393,752 customers in Illinois, Massachusetts, Maryland, New Jersey, New York, Pennsylvania. In 2025 it sold 4,239 gigawatt-hours of electricity for $728.82M in revenue, an average realized rate of 17.19¢ per kWh across all customer classes and 18.09¢ per kWh for residential customers. EIA records its activities as: retail marketing.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 373,577 | 3,579 | $647.59M | 18.09¢ | |
| Commercial | 20,175 | 660 | $81.23M | 12.31¢ | |
| Total | 393,752 | 4,239 | $728.82M | 17.19¢ |
Average realized rate = revenue divided by sales as reported on EIA Form 861. It blends fixed charges, demand charges and riders into one per-kWh figure; it is not the utility's tariff rate. Estimated residential bill assumes the average residential customer's actual 2025 usage (798 kWh/month).
Operations by state
| State | Customers | Sales (GWh) | Residential rate |
|---|---|---|---|
| Texas | 293,665 | 3,633 | 18.49¢ |
| New York | 63,496 | 281 | 18.55¢ |
| Pennsylvania | 26,982 | 257 | 13.99¢ |
| Illinois | 6,672 | 44.8 | 13.29¢ |
| Massachusetts | 1,324 | 8.2 | 18.31¢ |
| New Jersey | 865 | 6.8 | 18.80¢ |
| Maryland | 748 | 7.8 | 10.75¢ |
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 501,885 | 6,360 | $786.24M | 13.15¢ |
| 2022 | 487,495 | 6,501 | $882.16M | 14.73¢ |
| 2023 | 451,235 | 5,631 | $837.97M | 16.33¢ |
| 2024 | 429,823 | 4,912 | $786.65M | 17.19¢ |
| 2025 | 393,752 | 4,239 | $728.82M | 18.09¢ |
Energy supply (2025)
Net generation: — GWh
Wholesale power purchased: 4,499 GWh
Winter peak demand: — MW
Energy losses: 5.8% of energy handled
Other large utilities in Texas
- TXU Energy Retail Co, LLC - 1,867,539 customers, residential 19.36¢
- Reliant Energy Retail Services - 1,646,366 customers, residential 18.38¢
- City of San Antonio - (TX) - 986,641 customers, residential 12.40¢
- Austin Energy - 577,889 customers, residential 13.14¢
- Entergy Texas Inc. - 531,824 customers, residential 13.89¢
- Pedernales Electric Coop, Inc - 474,954 customers, residential 12.75¢
- Just Energy - 474,201 customers, residential 16.82¢
- El Paso Electric Co - 470,748 customers, residential 13.01¢
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #7554 in the EIA frame.