Water constraints on European power supply under climate change: impacts on electricity prices

Recent warm, dry summers showed the vulnerability of the European power sector to low water availability and high river temperatures. Climate change is likely to impact electricity supply, in terms of both water availability for hydropower generation and cooling water usage for thermoelectric power production. Here, we show the impacts of climate change and changes in water availability and water temperature on European electricity production and prices. Using simulations of daily river flows and water temperatures under future climate (2031‐2060) in power production models, we show declines in both thermoelectric and hydropower generating potential for most parts of Europe, except for the most northern countries. Based on changes in power production potentials, we assess the cost-optimal use of power plants for each European country by taking electricity import and export constraints into account. Higher wholesale prices are projected on a mean annual basis for most European countries (except for Sweden and Norway), with strongest increases for Slovenia (12‐15%), Bulgaria (21‐23%) and Romania (31‐32% for 2031‐2060), where limitations in water availability mainly affect power plants with low production costs. Considering the long design life of power plant infrastructures, short-term adaptation strategies are highly recommended to prevent undesired distributional and allocative effects.

[1]  Ø. Nilsen,et al.  Electricity Prices, River Temperatures, and Cooling Water Scarcity , 2011, Land Economics.

[2]  Andreas Marx,et al.  Climate change, impacts and vulnerability in Europe 2012: an indicator-based report , 2012 .

[3]  Dominique Y. Dupont,et al.  The nature of supply side effects on electricity prices: the impact of water temperature , 2005 .

[4]  M. Flörke,et al.  Future changes of freshwater needs in European power plants , 2011 .

[5]  Bastian Hoffmann,et al.  Analysis of performance losses of thermal power plants in Germany – A System Dynamics model approach using data from regional climate modelling , 2013 .

[6]  P. Kyle,et al.  Influence of climate change mitigation technology on global demands of water for electricity generation , 2013 .

[7]  Dirk T. G. Rübbelke,et al.  Impacts of Climate Change on European Critical Infrastructures: The Case of the Power Sector , 2010 .

[8]  F. Ludwig,et al.  Vulnerability of US and European electricity supply to climate change , 2012 .

[9]  Bernhard Lehner,et al.  The impact of global change on the hydropower potential of Europe: a model-based analysis , 2005 .

[10]  J. Kok,et al.  The physics of wind-blown sand and dust , 2012, Reports on progress in physics. Physical Society.

[11]  Gunnar S. Eskeland,et al.  The Impact of Climate Change on Nuclear Power Supply , 2011 .

[12]  Stefan Vögele,et al.  Short-term distributional consequences of climate change impacts on the power sector: who gains and who loses? , 2011, Climatic Change.

[13]  John Yearsley,et al.  A semi‐Lagrangian water temperature model for advection‐dominated river systems , 2009 .

[14]  D. Lettenmaier,et al.  A simple hydrologically based model of land surface water and energy fluxes for general circulation models , 1994 .

[15]  Dieter Gerten,et al.  Impact of a Statistical Bias Correction on the Projected Hydrological Changes Obtained from Three GCMs and Two Hydrology Models , 2011 .

[16]  John Yearsley,et al.  A grid‐based approach for simulating stream temperature , 2012 .

[17]  Dennis P. Lettenmaier,et al.  Coupled daily streamflow and water temperature modelling in large river basins , 2012 .

[18]  Martina Flörke,et al.  Will climate change affect the electricity production sector? A European study , 2011 .

[19]  Dennis P. Lettenmaier,et al.  Global river discharge and water temperature under climate change , 2013 .

[20]  Alexei G. Sankovski,et al.  Special report on emissions scenarios : a special report of Working group III of the Intergovernmental Panel on Climate Change , 2000 .

[21]  Stefan Vögele,et al.  Dynamic modelling of water demand, water availability and adaptation strategies for power plants to global change , 2009 .

[22]  P. Punys,et al.  THE IMPACT OF CLIMATE CHANGE ON KAUNAS HYDROPOWER PLANT POWER PRODUCTION , 2008 .

[23]  John H. Perkins,et al.  Climate change, nuclear power, and the adaptation-mitigation dilemma , 2011 .

[24]  Johan Lilliestam,et al.  Modeling thermoelectric power generation in view of climate change , 2010 .

[25]  Torben K. Mideksa,et al.  The impact of climate change on the electricity market: A review , 2010 .

[26]  P. Kyle,et al.  An integrated assessment of global and regional water demands for electricity generation to 2095 , 2013 .

[27]  E. Kuusisto.  Droughts in Finland - past, present and future , 2003 .

[28]  David J. Sailor,et al.  Vulnerability of wind power resources to climate change in the continental United States , 2002 .