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TerraPower Announces Start of Construction on First Utility-Scale Advanced Nuclear Plant in Wyoming

LCG, April 23, 2026--TerraPower announced today the official start of construction on its Kemmerer Unit 1 nuclear power plant, which could be the first utility-scale advanced nuclear power plant in the United States. In early March, the Nuclear Regulatory Commission (NRC) announced that it had authorized the staff to issue a construction permit for Unit 1 commercial nuclear power plant in Kemmerer, Wyoming.

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TVA Announces Two Energy Storage Agreements Totaling 425 MW/1,700 MWh

LCG, April 22, 2026--The Tennessee Valley Authority (TVA) yesterday announced two new, 20-year agreements for a 225 MW/900 MWh battery energy storage system (BESS) project in East Tennessee and for a 200 MW/800 MWh BESS project in northern Alabama. Both projects are planned to commence commercial operations in 2029.

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Industry News

New York and New England ISO's Cease Pursuit of Regional Merger

LCG, Nov. 22, 2002--Talks between ISO New England Inc. (ISO-NE) and the New York ISO (NYISO) will no longer be focused on forming a combined regional transmission organization, according to an announcement issued today by the two organizations.

The grid administrators for the respective regions will continue to use their recent discussions as the basis for minimizing "seams" issues, but feel that with the onset of the Federal Energy Regulatory Commission's standard market design (SMD) approaching, they will be less vulnerable to potential litigation by remaining separate.

"Today, ISO-NE and the NYISO have reluctantly withdrawn their NERTO proposal with FERC. This decision was made after careful consideration of all the comments filed on November 8th," as well as the "change in schedule for issuance of the Standard Market Design (SMD) final rule," said Gordon van Welie, president and CEO of ISO New England Inc. A filing by the two ISO's was made with the FERC on August 28th concerning the creation of a combined regional transmission organization.
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