Jay Substation Project
In 2011, VELCO and Vermont Electric Cooperative (VEC) proposed to construct a substation west of Leavitt Circle in Jay, Vermont, to provide a redundant path and additional capacity to deliver power to the Jay area.
Needs & Benefits
The need for the Jay Substation was identified from VEC's 2008 Integrated Resource Plan. The lack of redundancy in transmission paths, and the overloading when various events occur on the system have become reliability issues that could potentially impact VEC customers in Franklin, Orleans, Essex and Caledonia Counties of Vermont.
The potential to defer the project using non-transmission alternatives was studied and discussed with the Vermont System Planning Committee. VELCO and VEC determined that non-transmission alternatives do not provide a lower cost solution. An analysis prepared by a consultant for VEC and VELCO considered the need for this Project and other upgrades in northern Vermont, and showed this Project to be the least costly transmission solution to solve the reliability problems. In addition, the proposed substation has been designed to avoid the need to replace the wires on approximately 22 miles of lower voltage (sub-transmission) line, which would be more costly and likely have a larger environmental impact than the construction of the substation and other transmission improvements.
- 115 kV aluminum structure
- Four circuit breakers
- Two transformers
- Transmission control building
- Connections to VELCO and VEC's 115 kV and 46 kV transmission lines
Now completed, VELCO and VEC repositioned elements within VEC's switching station in order to connect to the new substation.
VELCO's aesthetic consultant reviewed the preliminary design plans and performed a visual analysis of the areas of the proposed Project. The findings indicated that vegetation and land contours screen the site from most public viewing locations, including views from the northern section of the Long Trail. The Project will be most visible from Route 105, however, these views will be buffered by existing vegetation along the side of the road and by the lower elevation for the substation. The greatest visibility will be possible during times when leafy trees are bare. Views from Jay Peak will be from distances over 3.5 miles away from the proposed facility and will not be a dominant feature in the landscape. Views of transmission infrastructure will increase from Leavitt Circle at the northern crossing of the transmission lines, however, landscape plantings were able to successfully reduce this visibility.
VELCO's noise consultant assessed the potential noise impacts associated with the substation. A complete engineering noise analysis was provided as part of the Project's filing with the Public Service Board.
- Winter 2010-2011
- Public meetings
- Permitting & regulatory process
- Fall 2011
- Construction start
- Summer 2012
- Construction complete