In the United States and Europe, at present 91% and 78% (ref. 1) of the total electricity is produced by thermoelectric (nuclear and fossil-fuelled) power plants, which directly depend on the availability and temperature of water resources for cooling. During recent warm, dry summers several thermoelectric power plants in Europe and the southeastern United States were forced to reduce production owing to cooling-water scarcity2, 3, 4. Here we show that thermoelectric power in Europe and the United States is vulnerable to climate change owing to the combined impacts of lower summer river flows and higher river water temperatures. Using a physically based hydrological and water temperature modelling framework in combination with an electricity production model, we show a summer average decrease in capacity of power plants of 6.3–19% in Europe and 4.4–16% in the United States depending on cooling system type and climate scenario for 2031–2060. In addition, probabilities of extreme (>90%) reductions in thermoelectric power production will on average increase by a factor of three. Considering the increase in future electricity demand, there is a strong need for improved climate adaptation strategies in the thermoelectric power sector to assure futureenergy security.
At a glance
- US Energy Information Administration Independent Statistics and Analysis, International Energy Statistics http://www.eia.gov (2011).
- Modeling thermoelectric power generation in view of climate change. Regional Environ. Change 4, 327–338 (2011). &
- , , & A Review of Operational Water Consumption and Withdrawal Factors for Electricity Generating Technologies 29 (National Renewable Energy Laboratory, 2011).
- NETL Impact of Drought on US Steam Electric Power Plant Cooling Water Intakes and Related Water Resource Management Issues (National Energy Technology Laboratory, 2009).
- Global-scale gridded estimates of thermoelectric power and manufacturing water use. Water Res. Res. 41, W04010 (2005). &
- Thirst for energy. Nature Geosci. 1, 283–286 (2008). , &
- Impacts of climate change on European critical infrastructures: The case of the power sector. Environ. Sci. Policy 14, 53–63 (2011). &
- The nature of supply side effects on electricity prices: The impact of water temperature. Econom. Lett. 88, 121–125 (2005). &
- & Electricity Prices, River Temperatures and Cooling Water Scarcity (Discussion Paper Series in Economics 18/2011, Department of Economics, Norwegian School of Economics, 2011).
- Climate change and global water resources. Glob. Environ. Change 9, S31–S49 (1999).
- Global hydrological cycles and world water resources. Science 313, 1068–1072 (2006). &
- Future long-term changes in global water resources driven by socio-economic and climatic changes. Hydrological Sci. J.-J. Des Sci. Hydrologiques 52, 247–275 (2007). , &
- Impact of a statistical bias correction on the projected hydrological changes obtained from three GCMs and two hydrology models. J. Hydrometeor. 12, 556–578 (2011). et al.
- 2000). et al. Emissions Scenarios. A Special Report of Working Group III of the Intergovernmental Panel on Climate Change (Cambridge Univ. Press,
- EEA Energy and Environment Report 2008 (Copenhagen, 2008).
- IEA-NEA Projected Costs of Generating Electricity (International Energy Agency and Nuclear Energy Agency, 2010).
- Trends in water demand and water availability for power plants—scenario analyses for the German capital Berlin. Climatic Change 110, 879–899 (2012). , , &
- A simple hydrologically based model of land-surface water and energy fluxes for general-circulation models. J. Geophys. Res. 99, 14415–14428 (1994). , , &
- A semi-Lagrangian water temperature model for advection-dominated river systems. Water Res. Res. 45, W12405 (2009).
- NETL Coal Plant Database (US Department of National Energy Technology Laboratory; 2007).
- VGE. Jahrbuch der europäischen Energie- und Rohstoffwirtschaft Vol. 118 (VGE Verlag GmbH, 2011).
- Dynamic modelling of water demand, water availability and adaptation strategies for power plants to global change. Ecol. Econom. 68, 2031–2039 (2009). &