Access documents related to the Elective Transmission Upgrade project.
The changes related to elective transmission upgrades (ETUs)—merchant-funded transmission interconnections in New England improved the process for evaluating the interconnection of ETUs and incorporated ETUs, when coupled with capacity imports, into the Forward Capacity Market.
Under previous rules, generator projects, with their more rigorous interconnection requirements and firm timelines for different stages of study, could displace ETUs in the ISO Interconnection Queue. These shifting Queue positions resulted in study uncertainties, project delays, re-studies, and added costs. Read more about the ETU rule changes.
The Elective Transmission Upgrades project was just one of several key projects at the ISO, which continuously undertakes a variety of short- and long-term projects to enhance the region's competitive wholesale electricity markets and ensure reliable operation of the power grid.