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WHAT WE DO > Transmission

Transmission Services

Power line repair crews training with fiberglass poles and hot sticks on Transmission towers at the Clark training center in Frederick R. Clark Energy Center, Marcy, NY. We provide transmission service throughout New York State over our more than 1,400 circuit-miles of high voltage transmission lines. We operate and maintain our facilities with a strong commitment to safety and the environment and work closely with the New York Independent System Operator (NYISO), other transmission owners and the New York State Public Service Commission to help ensure a high level of power-system reliability.

NYPA recently worked with National Grid to construct a 46kv transmission line on Forest Preserve land in the Adirondacks to provide reliable electric service for the health and safety of the residents of the Tri-Lakes Region of Lake Placid, Saranac Lake, Tupper Lake and the surrounding communities. We are also working to upgrade our existing network.

NYPA has been at the forefront of developments in transmission, building a Convertible Static Compensator at our Clark Energy Center and exploring other applications of Smart Grid technology. Our transmission right-of-way maintenance program has received national recognition for its responsible environmental practices.

Customers can obtain service on the New York transmission system through the NYISO's OASIS (Open Access Same-Time Information System) node. All transmission service in the state is subject to the NYISO Open Access Transmission Tariff (OATT). Details of the tariff can be found on the NYISO web site.

Design Criteria for Developer Connection to the New York Power Authority Transmission System

The Power Authority belongs to the Northeast Power Coordinating Council, formed shortly after the 1965 Northeast Blackout to promote the reliability and efficiency of interconnected power systems throughout the northeastern United States and central and eastern Canada. Membership in this regional reliability council includes transmission providers, transmission customers, power pools and independent system operators in Northeastern North America.

NYPA to Provide Continued Reliability to State Power Grid - July 2012

New York Power Authority Transmission Owner Information


October 1, 2013 - NYPA and NYSEG launch website for Marcy South Series Compensation Project

June 7, 2013 - Governor Cuomo Announces $10 Million to Modernize New York's Power Grid

June 5, 2013 - New 7-Mile 660 Megawatt Hudson Transmission Power Line Enhancing Reliability and Energy Security in NYC

May 24, 2013 - N.Y. Power Authority Announces Significant Funding for Transmission Improvements Under the Energy Highway Initiative