New York Transco’s mission is to plan, develop, construct, and own major high voltage electric transmission projects. These projects will improve the long term viability of New York’s transmission infrastructure, reduce congestion, and advance the states’ public policy objectives which include expanding renewable power and promoting economic development.
In June 2016, New York Transco energized three new assets: Ramapo to Rock Tavern; Frasers-Coopers Corner; and Staten Island Unbottling. These transmission upgrades not only contribute to reliability if Indian Point Nuclear Power Plant were to shut-down, they also significantly reduce upstate to downstate transmission congestion which saves money for electricity consumers.
New York Transco, together with Grid NY LLC- , a subsidiary of National Grid, has proposed additional projects in the New York ISO Public Policy Planning Process to further decrease upstate to downstate transmission congestion which will save money for consumers and encourage upstate renewable development.
New York Transco is owned by Con Edison Transmission, LLC, Grid NY LLC, AVANGRID New York Transco LLC, and Central Hudson Electric Transmission.
Ramapo – Rock Tavern 345 kV Line
A second 345 kV transmission line was installed on existing double circuit towers between a new 345/138 kV Substation at Sugarloaf and Central Hudson’s existing, but now expanded, Rock Tavern 345 kV substation in northern Orange County. Also allows an existing 15 mile feeder between Ramapo and Sugarloaf stations that had been operating at 138V to operate at 345 kV, adding a total of 27 miles of new 345 kV transmission between Con Edison’s Ramapo and the Rock Tavern substations.
The Ramapo – Rock Tavern 345 kV project was approved by New York’s Public Service Commission in 2013 and the new 345 kV line was put in service on schedule in May 2016. Final relay upgrades was completed in fall 2016.
The project was developed by Consolidated Edison Company of New York and ownership was transferred to NY Transco in May 2016.
The Ramapo – Rock Tavern 345 kV line increases transmission capability into Southeastern New York.
Fraser – Coopers Corners 345 kV Line with Reactive Support
Transmission Project Description:
21 miles of re-conductored 345 kV transmission line and a 240 MVAR series capacitor bank added between NYSEG’s 345 kV Fraser substation near Delhi, New York and Coopers Corners substation near Monticello, New York. Includes 12 new towers and refurbishment of 20 existing towers.
The project is part of the NY Transco project portfolio. The project was developed by NYSEG and ownership was transferred to NY Transco in May 2016 and placed in service on June 2016.
The Fraser to Coopers Corners 345 kV Line with Reactive Support increases transmission capability into Southeastern New York.
Staten Island Unbottling
Transmission Project Description:
The Staten Island Unbottling (SIU) project split an existing 345 kV, 2.3 mile transmission feeder between Goethals substation in Staten Island, NY and Linden Cogeneration substation in Linden, NJ into two completely separate feeders. This consisted of relocating feeder terminal connections at both Goethals and Linden substations and associated relay modifications.
The project was approved by the New York Public Service Commission in 2013, and the independent feeders were put into service on schedule in April and May of 2016. Final relay upgrades was completed in fall of 2016.
The project was developed by Consolidated Edison Company of New York and transferred to NY Transco in May 2016.
The SIU project increases the reliability at Goethals substation by reducing the impact of losing the single existing feeder between Goethals and Linden Cogen substations. Due to the feeder separation, up to 480 MW may be supplied from the New Jersey generating station to Staten Island in a post-contingency configuration.