Why don't we "mothball" shutdown nuclear plants?
In May 2013, the United States lost a perfectly functional and well-maintained nuclear power plant, the Kewaunee Nuclear Power Plant. Last week, Entergy announced that it would be shutting down a second such plant, Vermont Yankee, after its current fuel load has been consumed. In both cases, the owners indicated that the plants were no longer economical due to market conditions; namely, the low price of natural gas, the presence of subsidized renewable energy suppliers that can pay the grid to take their power and still receive revenue for every kilowatt-hour generated, and an insufficient market demand for electricity in the markets where the plants were attempting to sell their output.