U.S. Electric Utility Directory · Vermont

Electric utilities in Vermont

Every electric utility serving Vermont in EIA data year 2025, with ownership type, grid operator, balancing authority, customers and the counties each one serves.

Compiled October 31, 2026. Grid operators present: ISO-NE.

Retail utilities181 investor-owned, 2 co-ops, 14 municipal
All entities24Including marketers and other filers
Counties covered14With at least one utility listed
Retail customers368,481Sum of utility customer counts

Retail electric utilities in Vermont

Sorted by customers. See Vermont on the map, and the state regulator, Vermont Public Utility Commission.

18 retail utilities serving Vermont
UtilityEIA IDTypeISO or regionBalancing authorityCustomersCounties served
Green Mountain Power CorpGreen Mountain Power7601Investor-ownedISO-NEISNE264,74813 Addison, Bennington, Caledonia, Chittenden, Essex, Franklin, Lamoille, Orange, Orleans, Rutland, Washington, Windham, Windsor
Vermont Electric Cooperative, Inc19791CooperativeISO-NEISNE39,3368 Addison, Caledonia, Chittenden, Essex, Franklin, Grand Isle, Lamoille, Orleans
City of Burlington Electric - (VT)2548MunicipalISO-NEISNE21,0051 Chittenden
Washington Electric Coop - (VT)20151CooperativeISO-NEISNE11,4674 Caledonia, Orange, Orleans, Washington
Village of Lyndonville - (VT)11359MunicipalISO-NEISNE5,7553 Caledonia, Essex, Orleans
Town of Hardwick8104MunicipalISO-NEISNE4,4964 Caledonia, Lamoille, Orleans, Washington
Town of Stowe- (VT)27316MunicipalISO-NEISNE4,2261 Lamoille
Village of Morrisville - (VT)12989MunicipalISO-NEISNE4,1471 Lamoille
Village of Swanton - (VT)18371MunicipalISO-NEISNE3,7811 Franklin
Barton Village, Inc1299MunicipalISO-NEISNE2,1621 Orleans
Village of Northfield - (VT)13789MunicipalISO-NEISNE1,8581 Washington
Village of Enosburg Falls - (VT)5915MunicipalISO-NEISNE1,7421 Franklin
Village of Hyde Park - (VT)9144MunicipalISO-NEISNE1,3981 Lamoille
Village of Johnson - (VT)9806MunicipalISO-NEISNE9771 Lamoille
Village of Jacksonville - (VT)9610MunicipalISO-NEISNE7141 Windham
Village of Orleans - (VT)14261MunicipalISO-NEISNE6691 Orleans
Vermont Public Power Supply Authority19780Public power districtISO-NE——0 —
Village of Ludlow - (VT)11305MunicipalISO-NEISNE—1 Windsor

Which utilities serve each county in Vermont

14 counties, with the grid operator serving most customers
CountyFIPSISO or regionUtilitiesUtilities serving the county
Addison50001ISO-NE2Green Mountain Power Corp, Vermont Electric Cooperative, Inc
Bennington50003ISO-NE1Green Mountain Power Corp
Caledonia50005ISO-NE5Green Mountain Power Corp, Vermont Electric Cooperative, Inc, Washington Electric Coop - (VT), Village of Lyndonville - (VT), Town of Hardwick
Chittenden50007ISO-NE3City of Burlington Electric - (VT), Green Mountain Power Corp, Vermont Electric Cooperative, Inc
Essex50009ISO-NE3Green Mountain Power Corp, Vermont Electric Cooperative, Inc, Village of Lyndonville - (VT)
Franklin50011ISO-NE4Green Mountain Power Corp, Vermont Electric Cooperative, Inc, Village of Swanton - (VT), Village of Enosburg Falls - (VT)
Grand Isle50013ISO-NE1Vermont Electric Cooperative, Inc
Lamoille50015ISO-NE7Green Mountain Power Corp, Vermont Electric Cooperative, Inc, Town of Stowe- (VT), Village of Morrisville - (VT), Village of Hyde Park - (VT), Town of Hardwick, Village of Johnson - (VT)
Orange50017ISO-NE2Green Mountain Power Corp, Washington Electric Coop - (VT)
Orleans50019ISO-NE7Green Mountain Power Corp, Vermont Electric Cooperative, Inc, Washington Electric Coop - (VT), Barton Village, Inc, Village of Lyndonville - (VT), Town of Hardwick, Village of Orleans - (VT)
Rutland50021ISO-NE1Green Mountain Power Corp
Washington50023ISO-NE4Green Mountain Power Corp, Washington Electric Coop - (VT), Village of Northfield - (VT), Town of Hardwick
Windham50025ISO-NE2Green Mountain Power Corp, Village of Jacksonville - (VT)
Windsor50027ISO-NE2Green Mountain Power Corp, Village of Ludlow - (VT)

Retail power marketers and other entities in Vermont

Competitive suppliers, wholesale marketers, transmission-only companies and behind-the-meter providers that report to EIA for Vermont. They have no county service territory of their own.

EntityEIA IDTypeISO or regionCustomers
SolarCity Corporation57313Behind-the-meter providerISO-NE1,609
SunPower Capital, LLC59580Behind-the-meter providerISO-NE295
Sunrun Inc.59647Behind-the-meter providerISO-NE272
Greenbacker Renewable Energy Corporation60025Behind-the-meter providerISO-NE6
Vermont Electric Power Co, Inc19792Transmission-onlyISO-NE—
Vermont Electric Trans Co Inc19950Transmission-onlyISO-NE—

About this data

Which utilities exist comes from the U.S. Energy Information Administration’s Form EIA-861 and EIA-861S, data year 2025 (final release, October 7, 2026), read directly from eia.gov. County service territories, balancing authority codes and customer counts come from EIA-861 for 2018, the latest year compiled at county level for this directory; utilities that started reporting after 2018 carry their 2025 values. County boundaries are U.S. Census cartographic boundaries (us-atlas 3.0, Albers USA projection).

Customer counts are per utility within Vermont. A county’s grid operator is the one serving most of its customers, estimated by spreading each utility’s customers evenly over its counties. Download every state in one file from the U.S. Electric Utility Directory.

Find out what your bills should have cost.

Send one recent bill per site, or a list of accounts. We tell you where we expect findings before you sign anything. No upfront audit fee.