NYISO

The New York Independent System Operator (NYISO) operates competitive wholesale markets to manage the flow of electricity across New York—from the power producers who generate it to the local utilities that deliver it to residents and businesses.

Twenty-four hours a day, seven days a week, we make electricity available when and where New Yorkers need it, at the lowest possible cost. We’ve been managing New York’s electric grid this way since 1999—and we’ve been part of the fabric of New York’s electric system since the late 1960s.