Following the December 2019 ISO-NE request for proposals, National Grid and Eversource, the region’s primary transmission owners and operators, have been hard at work identifying solutions to our regional electrical system’s reliability needs. In Spring 2020, working together, our two companies proposed eight separate solutions to the identified system reliability weaknesses resulting from Mystic Generating Station’s upcoming retirement.
ISO-NE received RFP responses from eight developers, including Eversource and National Grid, with bids covering 36 unique proposals.
The proposals received by ISO-NE included projects ranging in cost from $49M to $745M. As indicated in the original RFP, the winning proposal needs to be in-service by May 31, 2024. Ready Path Solution will be in service in October 2023.
The proposals received by ISO-NE included projects ranging in cost from $49M to $745M. The winning proposal needs to be in-service by May 31, 2024. The Ready Path Solution will be in service in October 2023.
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ISO-NE selected the Ready Path Solution for several reasons, most notably due to its ability to efficiently address the reliability need, provide overall value for customers as the lowest installed cost option of $49 million, and because it can be quickly built and operational well before the retirement of the Mystic Generating Station.
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In July 2020, ISO-NE confirmed its selection of the Ready Path Solution as the preferred option and announced their intent to move forward to a Solutions Study process.
ISO-NE selected the Ready Path Solution for several reasons, most notably due to its ability to efficiently address the reliability need, provide overall value for customers as the lowest installed cost option of $49 million, and because it can be quickly built and operational well before the retirement of the Mystic Generating Station.
In addition to focusing on development of the system enhancements within Eversource and National Grid substation properties, and to meet the firm timeline requirements as set forth by ISO, National Grid and Eversource are evaluating permitting requirements, initiating community outreach, performing construction planning, and capitalizing on strategic partnerships to ensure timely delivery of the Ready Path Solution.