Commission Decision of 21 December 2006 establishing harmonised efficiency reference values for separate production of electricity and heat in application of Directive 2004/8/EC of the European Parliament and of the Council (notified under document number C(2006) 6817) (Text with EEA relevance) (2007/74/EC) (repealed)

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 ISO conditions (15 ^oC). The correction will be as follows:

0,1 %-point efficiency loss for every degree above 15 ^oC;

0,1 %-point efficiency gain for every degree under 15 ^oC.

Example:

When the average annual temperature in a Member State is 10 ^oC, the reference value of a cogeneration unit in that Member State has to be increased with 0,5 %-points.

(b)

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 ^oC.The temperature difference between the average annual ambient temperatures applied in adjacent climate zones will be at least 4 ^oC.

Example:

In a Member State the average annual ambient temperature in place A is 12 ^oC and in place B it is 6 ^oC. The difference is more than 5 ^oC. The Member State has now the option to introduce two climate zones separated by the isotherm of 9 ^oC, thus constituting one climate zone between the isotherms of 9 ^oC and 13 ^oC with an average annual ambient temperature of 11 ^oC and another climate zone between the isotherms of 5 ^oC and 9 ^oC with an average annual ambient temperature of 7 ^oC.