GlobalFoundries Essex Junction Vermont Facility
Large load · 1000 RIVER STREET - B966, Essex Junction, VT
GlobalFoundries operates a semiconductor manufacturing facility at 1000 River Street in Essex Junction, Chittenden County, Vermont. A Green Mountain Power filing estimated that removing the GF load would cut annual energy need by approximately 400,000 MWH per year. The site is served through GF Power, LLC, a regulated single-customer utility.
Overview
- Annual energy use
- 400,000 MWh
- 2021
GlobalFoundries develops, manufactures, and tests semiconductor products for a variety of computer and consumer applications. The facility sits on approximately 729 acres divided by the Winooski River, with the manufacturing facility on approximately 237 acres west of the river. In December 2024 GlobalFoundries received an additional $9.5 million in federal funding for gallium nitride on silicon manufacturing at Essex Junction.
Profile
- Electricity and grid
- The Vermont Public Utility Commission approved GF Power, LLC in October 2022 as a regulated utility limited to serving a single customer, GlobalFoundries, and GF Power operations started in February 2023. GF Power is a customer of ISO New England and VELCO for transmission and grid services, with a full-services transitional power purchase agreement with Green Mountain Power until September 2026. Green Mountain Power testified in 2021 that GF's typical peak contributions toward future capacity obligations were between 55–60 MW. In 2020 GlobalFoundries' electricity consumption for its Essex Facility was approximately 398 million kWh.
- Power supply
- The certificate of public good requires Green Mountain Power to supply wholesale energy, capacity, renewable energy credits and ancillary services through September 30, 2026, after which GF Power must procure power at market prices established through solicitations. In 2025 the Vermont Public Power Supply Authority agreed to act as load serving entity and lead market participant for GF Power's resources in the ISO New England wholesale electricity markets.
Facility
- Activity
- Semiconductor development, manufacturing and testing
- Industry
- Manufacturing
- Site type
- Facility
- Operating status
- Operating
Reported Oct 5, 2026
Permits and agreements
- Permit
- Permit Period: November 18, 2019 – November 17, 2029
Related records
Timeline
- Oct 5, 2026
- GlobalFoundries marked delivery of approximately six megawatts of on-site solar and a 16-megawatt battery energy storage system.
GlobalFoundries marks milestone in its energy journey at Vermont site | GlobalFoundries