Useful energy requirement per m2 per degree-day for space heating

Figure Created 20 Aug 2010 Published 14 Sep 2010 Last modified 29 Nov 2012
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The unit consumption in useful terms is calulated by multiplying the final consumption for each fuel by the heating efficiency for that fuel.

European data


Additional information

The efficiencies by fuel are the following: electricity (97%), heat (95%), LPG (75%), heating oil (72%), fuel oil (76%), hard coal (65%), lignite (65%), , wood/renewable (55%), gas (80%), the values were endorsed at an ODYSSEE meeting, following a review of the values used by different countries, in particular Denmark.

The difference of variation between unit energy consumption in useful and final energy show the impact of fuel substitutions.

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