# Commission Delegated Regulation (EU) 2015/2402 of 12 October 2015 reviewing harmonised efficiency reference values for separate production of electricity and heat in application of Directive 2012/27/EU of the European Parliament and of the Council and repealing Commission Implementing Decision 2011/877/EU, Division (a): Correction factors relating to the average climatic situation

Extent: E+W+S+N.I.

Ambient temperature correction is based on the difference between the annual average temperature in the United Kingdom and standard atmospheric ISO conditions (15 °C).
The correction will be as follows:
0,1 %-point efficiency loss for every degree above 15 °C;
0,1 %-point efficiency gain for every degree under 15 °C.

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Source: https://www.legislation.gov.uk/eur/2015/2402/annex/III/division/1/division/a (the official version)
Page: https://openlegislation.uk/eu-regulation-2015-2402/annex-III/division-1/division-a
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.