NPPD seeks 146 MW boost for Cooper nuclear power plant

The Nebraska Public Power District voted unanimously last week to increase output at the Cooper Nuclear Station by 146 MW through an extended power uprate.

Since 2005, NPPD has been replacing key plant components including two low-pressure turbines, a generator rotor and stator, eight feedwater heaters, and main power transformers. The upgrade will also include replacing the plant’s high-pressure turbine, currently one of the oldest in the American fleet of nuclear plants.

Increasing power generation at the plant will be achieved by upping coolant flow to the reactor, improving fuel enrichment, generating more heat in the reactor core, and increasing steam flow to the turbine/generator. The NPPD will now seek approval of the plans from the NRC and the Nebraska Power Review Board.

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