Access materials that detail the projected future load, resource, and transmission needs of New England’s power system:
Developing a Regional System Plan is one of the ISO’s responsibilities as Regional Transmission Organization (RTO). See Attachment K: Regional System Planning Process of the Open Access Transmission Tariff (Section II of the ISO Tariff). Data collection and analyses needed for RSP development is ongoing. The ISO then develops an RSP every two years in collaboration with the Planning Advisory Committee (PAC), with specific issues or concerns referred to other committees for investigation, as necessary. (In 2016, the RSP shifted from annual to biennial publication.) Needs assessments and solutions studies are the foundation for RSPs. They can be found with the PAC materials. RSPs include information for the region on a 10-year horizon. Read more.
The RSP Project List (accessible below) includes all of the ongoing regulated transmission expansion efforts in New England. These are transmission solutions that have been proposed in response to the needs identified in an RSP or in a needs-assessment study. Read more.
Some materials in this section contain CEII. Your browser cannot access them if you don’t have the correct digital certificate. Request access to CEII materials. Note: All ISO and stakeholder-submitted material marked as “Critical Energy Infrastructure Information,” “CEII,” or the like are posted to the ISO website with restricted access. ISO New England is not otherwise responsible for reviewing, categorizing, or protecting materials submitted by stakeholders.