The New York Independent System Operator (NYISO) manages New York’s electricity transmission grid – a 10,775-mile network of high-voltage lines that carry electricity throughout the state. The NYISO also oversees wholesale electricity markets where more than $50 billion has been transacted since 1999.

The people of the NYISO understand their tremendous responsibility, and they take great pride in keeping the power flowing to 19.2 million New Yorkers. The state’s geographic location also means that the NYISO serves as the pivot point for the transfer of electricity to and from the Northeastern U.S. and Canada. The NYISO is a national leader in innovation and technology, and provides New York with the most sophisticated and comprehensive energy management system in the United States.

The NYISO’s predecessor was the New York Power Pool – a consortium of eight investor-owned utilities. Since Dec. 1, 1999, the NYISO has grown into a 400-person organization that applies integrity, independence and professionalism as it administers fair markets, allows for open access to the transmission system, operates a reliable transmission system and serves as the authoritative source for all energy related matters in New York.