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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

Connections of Wind Farms to Irish Grid Blocked

LCG, Dec. 4, 2003--The intermittent nature of wind power production and the significant amount of planned growth of wind installations in Ireland has led a top regulator to halt further connections in order to insure reliable operations.

The decision was prompted in part by a letter to the regulator, Tom Reeves, from the managing director of ESB National Grid, Kieran O'Brien, in which O'Brien asked for emergency steps to be taken. "While these issues could be ignored with low levels of wind generation on the system, now that definitive plans are in place to significantly and rapidly increase the proportion of wind generation on the system, a number of complex technical issues relating to wind generation must be resolved," the letter stated.

Reeves said that he knew the decision would not be received well by executives of wind power production firms. He stated that he was "naturally reluctant to approve emergency type measures of this nature without any prior warning to the industry," but that a higher priority lay in "overall system reliability."

O'Brien asked that the technical issues should be fully researched before any new connections are approved. He wrote that the amount of currently connected facilities and approved wind connection agreements "pose an increased risk to the security and stability of the power system which the transmission system operator feels exceeds the level normally likely to be accepted by a prudent system operator."
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