Grid reliability is at the core of everything we do
The New York Independent System Operator (NYISO) is a not-for-profit corporation responsible for operating the state’s bulk electricity grid, administering New York’s competitive wholesale electricity markets, conducting comprehensive long-term planning for the state’s electric power system, and advancing the technological infrastructure of the electric system serving the Empire State.
At the NYISO, we work continuously to keep the grid reliable through a balance of two tightly linked functions: system operations and market operations. What makes NYISO unique is how integrated these functions are. Learn more about grid operations.
Wholesale energy markets in the U.S. use a competitive auction structure to establish the cost of energy. In this structure, generators consider their fuel and other operational costs in offering their supply to the market. Those with lower costs offer into the market at lower prices and fluctuations in the costs for fuel influence generators’ offers. Learn more about wholesale electricity markets.
At the NYISO, keeping the electric grid reliable will always be job one. We manage the flow of electricity across the bulk electric system, or grid, in the state around the clock, every day of the year. For most consumers, “reliability” simply means the lights stay on and phones are charged. But as the grid operator in New York, keeping the lights on also means planning far into the future to make sure the electric system and its interrelated components can meet customer demand. Learn more about electric system planning.
NYISO by the numbers
650
Dedicated employees
20M
New Yorkers served
450
Wholesale market participants
11,300
Circuit miles of NY transmission managed
151,059
GWh of electricity delivered to NY consumers in 2025
We are dedicated engineers, operators, analysts, economists, and technologists
When you turn on a light or plug in your phone, you probably don't think about what happens behind the scenes to make that electricity available. But behind every megawatt delivered is a team of dedicated professionals working around the clock to deliver power safely to all New Yorkers. Meet the people who help power New York every day.
Our core values connect us as a team and as people, while providing guiding principles for the company as we work together to fulfill our mission and vision.
- Our People - Working, learning and growing together, respecting and embracing our differences
- Customer Focus - Valuing our stakeholders’ perspective
- Integrity - Commitment to honest, ethical, and transparent actions
- Innovation - Creating sound solutions in an environment of constant change
- Excellence - Accountability for excellence in all that we do
After decades of rising retail electricity prices, the New York Independent System Operator (NYISO) was established in 1999 to manage the state’s electric grid, improve reliability, and establish efficient, wholesale electricity markets. Learn more about our history.
Wired to serve
The people who power New York describe in their own words what brought them to the NYISO.
