NYPA Press Release

New York Power Authority Approves $34.3 Million for Transmission Life Extension and Modernization Project at Northern New York Substations

Transmission Upgrades Will Improve Availability and Reliability of the Grid


For Immediate Release: 08/21/19

Contact: NYPA Media Inquiries | media.inquiries@nypa.gov | 914-681-6770

WHITE PLAINS—The New York Power Authority (NYPA) Board of Trustees last month approved $34.3 million for upgrades at its Plattsburgh, Willis and Saranac substations located in Clinton County. The investment is part of a comprehensive, multi-year
Transmission Life Extension and Modernization (T-LEM) program to upgrade NYPA’s existing transmission system to maintain availability and increase reliability


The T-LEM program, which began in 2012 and is set to run through 2025, encompasses transmission assets along transmission lines, switchyards and substations in the Central, Northern and Western regions of New York State. At an estimated total cost of $726 million, the upgrades are divided into several smaller projects for efficient resource planning and effective implementation.


“By upgrading our substations in Northern New York, we’re ensuring the continued reliable operation of our regional transmission system,” said Gil C. Quiniones, NYPA president and chief executive officer. “Our T-LEM program allows us to replace aging equipment and extend the life of our assets, and to implement cutting-edge technology that facilitates better management of this vital statewide transmission artery.”


Transmission improvements in the Northern New York region encompasses equipment upgrades at the Plattsburgh, Willis and Saranac remote substations, which support operation of the transmission systems around NYPA’s St. Lawrence-Franklin D. Roosevelt Power Project in Massena.


Last month’s funding authorization enables NYPA to build on upgrades already completed and synergizes with planned upgrades at the Willis substation, in addition to further improvements at the Plattsburgh substation. Seven 230 kilovolt (kV) and four 115 kV circuit breakers will be replaced, in addition to motor-operated disconnect switches and instrument transformers at the Willis substation. The planned improvements also include relay and station service equipment upgrades at both the Willis and Plattsburgh substations, as well as the procurement of four 115 kV circuit breakers for the Saranac substation. The planned upgrades are expected to begin in September and continue through December 2025.


In March 2017, the NYPA Board of Trustees approved $26.3 million for the initial phase of T-LEM work at the remote substations in Northern New York, which included the replacement of motor-operated disconnect switches, instrument transformers, eleven 115 kV circuit breakers and station service equipment at the Plattsburgh substation.


NYPA’s switchyards and substations range from 115 kV to 765 kV, including 1,471 circuit‑miles of transmission lines, which are a strategic component for the delivery of reliable, low-cost power to New York State. The T-LEM program advances NYPA’s commitment to becoming the nation’s first end-to-end digital utility as part of the Smart Generation & Transmission strategic initiative, and supports Governor Andrew M. Cuomo’s Reforming the Energy Vision (REV) strategy.


NYPA owns and operates approximately one-third of New York’s high-voltage power lines. These lines transmit power from NYPA’s three large hydroelectric generation facilities and wind power generation facilities, connecting nearly 7,000 megawatts of renewable energy to New York State’s power grid. This includes connecting more than 6,200 megawatts of hydroelectric power and about 700 megawatts, or more than a third, of New York State-generated wind energy to the grid.


About NYPA:
NYPA is the nation's largest state public power organization, through the operation of its 16 generating facilities and more than 1,400 circuit-miles of transmission lines. NYPA uses no tax money or state credit. It finances its operations through the sale of bonds and revenues earned in large part through sales of electricity. More than 70 percent of the electricity NYPA produces is clean renewable hydropower. For more information visit www.nypa.gov and follow us on Twitter @NYPAenergy, Facebook, Instagram, Tumblr, and LinkedIn.