The Southwest is the most arid, fastest growing region of the United States. Our 21st-century economy and shifting sociodemographics have created new demands for water, even as drought, changing land use, and climate change threaten our water supplies. Our challenge is to help water managers achieve safe, sustainable water supplies in the face of growth and supply uncertainties, without compromising our quality of life.
Moving and treating water consumes energy, and producing energy nearly always consumes water: the two are tightly linked. The good news is that conservation of one results in savings of the other as well.
By understanding how much water is required to produce various kinds of energy, we can move toward more water-efficient energy production. In turn, recognizing how much energy is needed for various components of our water systems will help us identify opportunities for greater efficiency.
A recent issue of Southwest Hydrology, a UA publication, explores both sides of the water/energy nexus: