Get easy access to helpful ISO-NE maps and diagrams on new webpage

ISO New England is pleased to announce the Maps and Diagrams webpage: a new one-stop-shop for many of the ISO’s most commonly used maps and diagrams related to the electric power system, the wholesale electricity marketplace, system planning, and industry relationships. The page is also a jumping off point to other informative pages across the ISO’s expansive website. The new page can be found under the About Us tab in the Key Grid and Market Stats section.


Along with the system diagram and transmission system map, page visitors will also find the images and explanations for items such as those shown below: key study areas, Forward Capacity Market capacity zones, and the relationship between reserves zones, load zones, and interfaces.

Many of the ISO’s more detailed maps and diagrams can still be found on ISO Express, in ISO training materials, and in Reliability Committee materials.

Inside ISO New England, Market Participant Announcements
forward capacity market, transmission planning, website