That doesn't sound quite right. Nuclear is very energy dense and has very low footprints in terms of land, fuel, mining, pollution, waste, and everything else except capital cost. I hope we can figure out how to build them cheaper.
Acres per Megawatt Produced for different energy sources [1]:
Coal 12.21
Natural Gas 12.41
Nuclear 12.71
Solar 43.50
Wind 70.64
Hydro 315.22