"Coal-fired #power plants are the number-one user of fresh water in the country. They require 21 gallons of fresh #water for each Kilowatt hour(kWh) of #energy produced."
- Director of Center for International Energy & #Environmental Policy at #University of #Texas 2008
As you can see in the chart, coal production has plateaued somewhat, maybe even peaked ultimately per capita.
Hydrocarbon production per capita peaked over ten years ago.