1. Yucca Power Plant Repowering Moves Forward with Long-Lead Procurement Authorization The board approved procurement of long-lead items for the Yucca Steam Turbine No. 1 Repowering Project, authorizing purchase of Wärtsilä reciprocating engines (identical to those at El Centro Unit 4), generator step-up transformers, environmental permitting, and demolition of the existing fuel oil tank. The total project is estimated at approximately $247 million, with a target commercial operations date of June 1, 2030. Staff projects $450 million in savings for IID through 2045 alone, driven by better efficiency and cheaper natural gas at the Yucca site. The existing 75-megawatt boiler has produced zero megawatts since 2023 and will be replaced with 94 megawatts of new capacity.
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