New nuclear is expensive, it's cheaper to replace old appliances with newer energy-efficient ones than to build a new plant. Wind is cheaper than new nuclear, and solar will be in a few years.
"On March 9, 2010, the open-access refereed journal Environmental Research Letters (ERL) published an article in which more than 50 leaders in the field of energy efficiency proposed a new unit to characterize electricity savings – the Rosenfeld (symbol: Rs).<4> One Rosenfeld is equal to 3 billion kilowatt-hours per year, which represents the electrical output of one 500-megawatt coal-fired power plant under a set of standard assumptions. In reference to such a standard coal plant, one rosenfeld of saved electricity also avoids emissions of 3 million metric tons of carbon dioxide per year. "
http://en.wikipedia.org/wiki/Arthur_H._Rosenfeldhttp://en.wikipedia.org/wiki/Rosenfeld_Effecthttp://en.wikipedia.org/wiki/Negawatt_power