The Missing Energy-Water Roadmap

This post was written by CPR Member Scholars Lesley McAllister and Dave Owen. In the 2005 Energy Policy Act, Congress recognized that energy and water supply issues are deeply intertwined, and required the Department of Energy (DOE) to report on their nexus and make recommendations for future action within two years. (42 USC 16319). DOE started this important work, but never finished it. DOE's initial report, issued in 2007, hinted at the complexity and seriousness of the energy-water nexus. It discussed both how supplying energy requires water and supplying water requires energy. For example, thermoelectric power plants (primarily coal-fired, natural gas-fired and nuclear plants) account for about 40% of all freshwater withdrawals in the United States, roughly equal to the amount of freshwater withdrawn for irrigated agriculture. For its part, water supply and treatment consume about 4% of the electricity generated domestically, and activities associated with water use (irrigation, water heating, clothes washing and drying) consume even more. Yet our energy policies give scant attention to issues of water supply, and our water policies give scant attention to energy. Arguably, our law- and policy-making institutions are poorly suited to dealing with this extensive interconnectedness. Jurisdiction over water and energy issues is spread across more than two dozen House and Senate committees, well over a dozen federal agencies, 50 state legislatures, and countless state and local agencies. Moreover, neither our energy policies nor our water policies are giving serious enough attention to the problem of climate disruption. Climate disruption will dramatically affect water supply, as the timing, type, and amount of precipitation all change. The impacts - from drought in some areas to flooding in others - will have many consequences for energy supply and use. Power plants that use huge amounts of freshwater for cooling are likely to confront new legal and economic constraints. Hydroelectric facilities built for old stream flow regimes will have to contend with new ones. The energy demands of the water supply sector will likely grow as desalination plants are built and water is pumped into dry areas from distant places. In these ways and many others, climate disruption is likely to bring many changes to the energy and water sectors. Yet law and policy are reacting slowly, and in some contexts not at all, to those changes.