"Dominion closing nuclear plant due to low natgas prices"

"After claiming hundreds of coal-fired plants, the boom in U.S. shale gas output is now starting to grind down the nuclear industry, with smaller older plants like the 566-megawatt (MW) Kewaunee plant first to be affected.
[...]
Kewaunee's power purchase agreements are ending at a time of projected low wholesale electricity prices in the region"

As much is this is bullish for natural gas, I don't think it is sound for the country to become so dependent on natural gas for generating electricity.