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Energy Systems and Technologies for the Coming Century ...

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7,0Electricity <strong>for</strong> heat supplyModest develoopment1.2006,0HistoricalProjection1.000Electricity consumption <strong>for</strong> heat supply, TWh5,04,03,02,01,0Electricity, electric boilers f or DHElectricity, large heat pumps f or DHElectricity, individual heatingElectricity, individual heat pumpsCO2-emission vægtet, el800600400200Curve: Average CO2-emmission kg/MWh electricity0,01980 1985 1990 1995 2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 20500Fig. 3 The consumption of electricity <strong>for</strong> heating will be doubled according to Heat PlanDenmark. There will be a trans<strong>for</strong>mation from electric heating to more intelligent use ofelectricity <strong>for</strong> individual heat pumps with small storage capacity <strong>and</strong> <strong>for</strong> large distric<strong>the</strong>ating heat pumps <strong>and</strong> electric boilers, which only use surplus electricity at low prices.25450CO2-emissionsModest development400Mio. tons CO22015105HistoricalProjectionCO2-emission, district heatingCO2-emission indvidualCO2-emission total35030025020015010050Curve: CO2-emission kg. per MWh heating at end user01980 1985 1990 1995 2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 20500Fig. 4. The total CO 2 emission <strong>for</strong> heating in Denmark: statics from 1980 to 2010 <strong>and</strong>Heat Plan Denmark <strong>for</strong>ecast from 2010 to 2050. The diagrams confirm that <strong>the</strong> distric<strong>the</strong>ating <strong>and</strong> CHP has been <strong>the</strong> main contributor to <strong>the</strong> significant reduction of CO 2emissions from 1980 to 20107Risø International <strong>Energy</strong> Conference 2011 Proceedings Page 203

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