ISO New England to adopt utilities’ Ready Path Solution for reliability


In the US, the Independent System Operator of New England (ISO New England) has proposed to adopt a roadmap developed by utilities Eversource and National Grid to ensure the stability of the grid.

ISO New England will adopt the ‘Ready Path Solution’ to improve the reliability of the regional grid after the retirement of the Mystic Generating Station in 2024.

The regional grid system operator had received 36 bids from eight organisations.

The closing of the Mystic Generating Station could create significant reliability risks in the Boston area, including overloaded transmission lines and overall system instability.

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The ‘Ready Path Solution’ will require $49 million in investments to:

  • Maximise the use of existing transmission facilities in the Boston area;
  • Keeps upgrades entirely on properties already in use by the energy companies, minimising environmental and community impacts;
  • The construction of new equipment at Eversource’s existing North Cambridge substation and National Grid’s Tewksbury and Haverhill substations

If approved, the roadmap will be in-service several months prior to the planned Mystic Station retirement.

Bill Quinlan, president of Transmission at Eversource, said:  “We are confident that our joint solution will be delivered on time and will provide significant environmental and financial benefits to customers throughout our region.

“As operators of New England’s largest energy delivery system, we have the expertise and the experience to ensure that our electric system keeps pace with the evolving needs of our customers.”

Rudy Wynter, president of National Grid, adds: “The retirement of Mystic helps reduce fossil fuels from our energy mix in New England, and this proposal will help ensure reliable electricity service in the region.

“National Grid and Eversource will be able to cost-effectively deliver these critical infrastructure projects on time to meet the needs of Greater Boston.”

ISO-New England is expected to make its decision in mid-July.