ANNEX IIISupplementary provisions
ANNEX III Correction factors relating to the average climatic situation and method for establishing climate zones for the application of the harmonised efficiency reference values for separate production of electricity (referred to in Article 2(1)) (a) Correction factors relating to the average climatic situation Ambient temperature correction is based on the difference between the annual average temperature in a Member State 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. Example: When the average annual temperature in a Member State is 10 °C, the reference value of a cogeneration unit in that Member State has to be increased by 0,5 %-points. (b) Ambient temperature correction applies only to gaseous fuels (G10, G11, G12, G13). (c) Method for establishing climate zones: The borders of each climate zone will be constituted by isotherms (in full degrees Celsius) of the annual average ambient temperature which differ at least 4 °C. The temperature difference between the average annual ambient temperatures applied in adjacent climate zones will be at least 4 °C. Example: If, for example, for a given Member State the average annual ambient temperature is 12 °C in a certain location and 6 °C in a different location within the Member State, then the Member State has the option to introduce two climate zones, separated by an isotherm of 9 °C: A first climate zone between the isotherms of 9 °C and 13 °C (4 °C difference) with an average annual ambient temperature of 11 °C, and A second climate zone between the isotherms of 5 °C and 9 °C with an average annual ambient temperature of 7 °C.