River Road & Sand Hill Road, Essex Junction, Chittenden County, VT 05452Clean Energy Developers / Green Mountain Power
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Vermont[1][3] Department of Public Service review and ISO New England interconnection study milestones project commercial operation for November 2026.The Essex Energy Storage Project is a utility-scale 16 MW / 64 MWh 4-hour battery energy storage system located in Essex Junction, Chittenden County, Vermont. Located adjacent to the major VELCO Essex 115 kV Substation on industrial utility land, the battery installation provides essential peaking capacity, frequency regulation, and transmission reliability for the Burlington metropolitan area while mitigating costly regional peak transmission charges for Vermont ratepayers.
