art_2__point_14__text_1
Directive 2010/31/EU of the European Parliament and of the Council of 19 May 2010 on the energy performance of buildings (recast) · European Union
‘cost-optimal level’ means the energy performance level which leads to the lowest cost during the estimated economic lifecycle, where:
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Source: EUR-Lex (Cellar) · retrieved 2026-10-28 · Text as adopted (Official Journal); later amendments are not incorporated in this text.