Vermont Electric Power Company proposes to upgrade the North Rutland Substation. The upgrade is needed because a recent conditions assessment revealed deficiencies within the substation. The transmission system upgrade will improve reliability of electric facilities serving portions of Vermont.
Needs & Benefits
The original VELCO North Rutland Substation was built in 1958, with various modifications and improvements occurring over the subsequent 63 years of service. VELCO conducted a conditions assessment of the substation and identified the need to replace some of the equipment due to condition. Deficiencies were identified in equipment such as the control building, 115 kV circuit switcher, and the substation fence.
VELCO proposes to address most of the Substation concerns by replacing the existing control building with a larger control building, replacing the existing 115 kV circuit switcher with a 115 kV circuit breaker, and replacing the substation fence with an expanded fence.
The project will require VELCO to install a temporary configuration to maintain service to the Green Mountain Power (GMP) sub-transmission system.
While the Project is constructed, VELCO will take advantage of the opportunity to perform regular condition-based maintenance and in-kind replacements at the Substation. This opportunity work is not associated with the Project, and includes, but is not limited to: installation of a passive secondary oil containment system for the existing power transformer, replacement of disconnect switches and bus work, replacement of the protection and control system, replacement of redundant AC & DC station services, replacement of telecommunication equipment, installation of power transformer and circuit breaker monitoring systems, and improvements to security systems.
- Replace the existing 20’ x 31’ VELCO control building with a new, approximately 32’ x 54’ control building that will accommodate the protection and control system, redundant AC & DC station services, communication equipment, and security systems. The new control building will be located on the southwest side of the Substation.
- Replace the existing 115 kV circuit switcher with a 115 kV circuit breaker and 115 kV disconnect switch that meets VELCO’s design standards.
- Expand the fence to accommodate the new control building, facilitate construction, and to improve access to equipment for maintenance. The substation fence expansion will be approximately 5 feet to the east, 36 feet to the west and 65 feet to the south.
- Perform tree clearing to accommodate the expanded substation yard.
VELCO’s aesthetic consultant, T. J. Boyle Associates, LLC (TJB), a landscape architecture and planning firm, has reviewed the preliminary design plans and performed a visual analysis of the areas of the proposed Project upgrades. TJB’s preliminary analysis indicates that the Project will not result in an undue adverse impact on aesthetics and scenic and natural beauty of the area. The area near the Substation includes a variety of commercial and utility uses, including a hydroelectric generation facility and substation, and the existing VELCO substation and transmission lines. Existing vegetation and landform screen some visibility from the surrounding area. However, proposed improvements will require vegetation clearing. TJB recommends new landscape mitigation to further improve the screening of the Substation in this area. A full analysis of potential aesthetic impacts and proposed landscaping mitigation measures will be included with the Petition filed with the Public Utility Commission. VELCO does not anticipate adverse aesthetic impacts from the Project.
VELCO’s noise consultant, Resource Systems Group, Inc. (RSG) will assess the potential noise impacts associated with the Project. A complete engineering noise analysis will be provided as part of the Project’s filing with the Commission, but no adverse impacts are expected at the residences closest to the Substation.
The Project poses no long-term traffic impacts in Rutland. The Petitioners anticipate only minor, short duration traffic impacts, if any, due to deliveries of equipment and material to the Substation site during the construction period. Such deliveries will use existing roads with vehicles that are commonly used on public roads. During delivery of any large equipment, traffic control personnel will be employed to manage traffic flow.
- May - July 2021
- Public meetings
- Summer/Fall 2021
- Regulatory and permitting process
- February - December 2022
- Anticipated construction start
- December 2022
- Anticipated completion