Independent System Operators (ISO) grew out of Orders Nos. 888/889 where the Commission suggested the concept of an Independent System Operator as one way for existing tight power pools to satisfy the requirement of providing non-discriminatory access to transmission.

The territories shown in the above map are where a regional transmission organization (RTO) or independent system operator (ISO, together, RTOs/ISOs) operates and runs the electric transmission grid.

As the RTO for New England, ISO-NE is responsible for operating wholesale power markets that trade electricity, capacity, transmission congestion contracts and related products, in addition to administering auctions for the sale of capacity.

The transfer of electricity between states is considered interstate commerce, and electric grids spanning multiple states are therefore regulated by the Federal Energy Regulatory Commission (FERC). An independent system operator (ISO) is similarly an organization formed at the recommendation of FERC.

ISO New England develops and follows procedures in compliance with NPCC standards, as well as those of the North American Electric Reliability Corporation (NERC) and Federal Energy Regulatory Commission (FERC). Learn more in Industry Standards, Structure, and Relationships.

Nov 29, 2022 · RTOs run the transmission grid on a regional basis across North America and Canada. The order included specific technical requirements an operator must meet to be considered a FERC-approved RTO. Essentially, FERC envisioned RTOs as larger organizations composed of multiple independent ISOs.

This interactive map displays all of Generation Plants in the United States with a Nameplate Capacity of 10MW or higher operating in 2019. Each point is color-coded by the plant's RTO/ISO/FERC Market.

Sep 27, 2024 · The Sustainable FERC Project is a coalition of state, regional and national environmental and other public interest organizations working to expand the deployment of clean energy resources into America’s electricity transmission grid.

Sep 20, 2024 · The California ISO has launched the Points of Interconnection (POI) Heatmap on Sept. 20, 2024, as part of FERC Order 2023. Access the heatmap from the Generation Interconnection page, under Interconnection facility information.

Nov 9, 2021 · FERC Issues Notice of Scoping Meetings and Comment Period for South System Expansion 4 Project & Mississippi Crossing Project (PF25-1, PF25-2) ... Regions Map Printable Version Order No. 1000 Regions Map Printable Version Order No. 1000. November 09, 2021. Share on Twitter; Share on Facebook ...