4.

Capacity mechanisms shall incorporate the following requirements regarding CO_(2) emission limits: from 4 July 2019 at the latest, generation capacity that started commercial production on or after that date and that emits more than 550 g of CO_(2) of fossil fuel origin per kWh of electricity shall not be committed or to receive payments or commitments for future payments under a capacity mechanism; from 1 July 2025 at the latest, generation capacity that started commercial production before 4 July 2019 and that emits more than 550 g of CO_(2) of fossil fuel origin per kWh of electricity and more than 350 kg CO_(2) of fossil fuel origin on average per year per installed kWe shall not be committed or receive payments or commitments for future payments under a capacity mechanism. The emission limit of 550 g CO_(2) of fossil fuel origin per kWh of electricity and the limit of 350 kg CO_(2) of fossil fuel origin on average per year per installed kWe referred to in points (a) and (b) of the first subparagraph shall be calculated on the basis of the design efficiency of the generation unit meaning the net efficiency at nominal capacity under the relevant standards provided for by the International Organization for Standardization. By 5 January 2020, ACER shall publish an opinion providing technical guidance related to the calculation of the values referred in the first subparagraph.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-30 · Text as adopted (Official Journal); later amendments are not incorporated in this text.