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Dominion begins refueling outage on North Anna nuclear reactor

Posted on Monday, March 12, 2012 at 1:22 pm


Operators removed from service Unit 1 at North Anna Power Station over the weekend for a scheduled refueling and maintenance outage. During the outage, a third of the reactor fuel will be replace with new fuel and a number of maintenance activities will be performed. Among the key activities to be conducted during the outage will be an uprate in the unit’s ability to generate electricity.

New and more efficient high- and low-pressure turbines will be installed. Steam is used to turn the turbine-generator to make electricity. North Anna 1 is the last Virginia nuclear unit to replace the turbines.

When the North Anna Unit 1 refueling outage is finished, the company will have added about 234 megawatts to the Virginia electrical grid from all four North Anna and Surry nuclear unit uprates, or the equivalent amount of electricity for 58,500 typical homes at peak winter demand in Virginia.

North Anna Nuclear Power Station's two containment domes

At North Anna Nuclear Power Station, the nuclear reactor known as Unit 1 is coming offline for refueling, maintenance and uprate work.