ANNEX IISupplementary provisions
ANNEX II ‘ANNEX IV Correction factors for avoided grid losses for the application of the harmonised efficiency reference values for separate production of electricity (referred to in Article 2(2)) Connection voltage level Correction factor (Off-site) Correction factor (On-site) ≥ 345 kV 1 0,976 ≥ 200 – < 345 kV 0,972 0,963 ≥ 100 – < 200 kV 0,963 0,951 ≥ 50 – < 100 kV 0,952 0,936 ≥ 12 – < 50 kV 0,935 0,914 ≥ 0,45 – < 12kV 0,918 0,891 < 0,45 kV 0,888 0,851 Example: A 100 kWel cogeneration unit with a reciprocating engine driven with natural gas generates electricity at 380 V. Of this, 85 % is used for own consumption and 15 % is fed into the grid. The plant was constructed in 2020. The annual ambient temperature is 15 °C (so no climatic correction is necessary). After the grid loss correction the resulting efficiency reference value for the separate production of electricity in this cogeneration unit would be, on the basis of the weighted mean of the factors in this Annex: Ref Εη = 53 % × (0,851 × 85 % + 0,888 × 15 %) = 45,4 % ’.