Nuclear, corn-ethanol crops and hydro-electric power soak up huge amounts of water. These, unfortunately, are essential if we are to move away from fossil fuel based energy sources. 1500 farmers in India committed suicide last year and 200,000 since 1997
link becauae shallow well water is drying up. Peak water may join peak oil as a critical bottleneck.

Alternative energy sources could use too much of earth's most precious resource, water...Humanity is sliding into water bankruptcy in the American Southwest, China, India.
alternative energy is, as they put it, "so thirsty."
"If you look at nuclear, it's enormously thirsty," said Vijay Vaitheeswaran, an energy expert moderating a panel exploring the ideas that water is both "the new oil," and a vital commodity whose ready supply the energy industry is fast learning it can no longer take for granted.
Even wind and solar energy, while they may appear to need little water, said panel members, are often managed in a way that relies on water-based back-up energy sources when there's no wind or sun.