An interesting report from the Congressional Research Service entitled Energy’s Water Demand: Trends, Vulnerabilities, and Management was submitted earlier this month to Congress. Some of the key points include:
“…Projections attribute to the energy sector 85% of the growth in domestic water consumption between 2005 and 2030.
Water already plays a significant role in the energy sector, and water use by the energy sector already shapes national water use. For example, more than 80% of U.S. electricity is generated at thermoelectric facilities. With few exceptions, these thermoelectric power plants are cooled with water. In 2005, withdrawal of water for cooling represented 44% of water withdrawn nationally, and 6% of the water consumed nationally. The more water used by the energy sector, the more vulnerable energy production and reliability are to competition with other water uses and water constraints such as droughts. Climate change impacts on water supplies in some regions may exacerbate this vulnerability. Water availability can affect both existing and new energy activities, as well as all those economic activities that depend on the fuels and electricity produced.
Questions for Congress include who is the most appropriate entity to respond to energy’s growing water demand and water vulnerability and how to respond. At present, little direct federal action is aimed at managing the energy sector’s water demand; instead, the current division of responsibilities relies on energy interests and state and local governments to meet and manage energy’s water demand and resolve energy-water conflicts. The role of federal policies in contributing to rising water demand is bringing into question the future federal role in this policy arena. Local or regional competition for water with existing users is often what makes energy’s water demand significant; at the same time, the regional and local scales of water resources availability.”
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