VELCO purchased the 46 kV equipment in the Highgate Substation in 2003 from Citizens Utility. VELCO rebuilt the 115 kV equipment in 2005 as part of the Northern Loop Project. A recent conditions assessment of the Substation identified the need to replace some of the equipment due to condition. The primary deficiency is the control building. While the Project is constructed, VELCO will take the opportunity to perform regular condition-based maintenance and in-kind replacements at the Substation, not associated with the Project.
The following upgrades to the VELCO Highgate Substation will improve reliability of electric facilities serving portions of Vermont.
- Replace the existing 24' x 61' VELCO control building with a new, approximately 32' x 80' control building that will accommodate a new protection and control system, station service, DC battery systems communication equipment, and security systems. The new control building will be located inside the existing Substation.
- Adjustments to existing driveway that consist of regrading, widening, and shortening the driveway to accommodate the new entry for the control building.