Member States may comply with the obligation laid down in the first subparagraph through the implementation of energy efficiency measures or by replacing the gas with a different source of energy, inter alia, renewable energy sources, to the extent that the same level of protection is achieved.
Féadfaidh na Ballstáit an oibleagáid a leagtar síos sa chéad mhír a chomhlíonadh trí bhearta éifeachtúlachta fuinnimh a chur chun feidhme nó trí fhoinse eile fuinnimh, inter alia foinsí fuinnimh in-athnuaite, a chur in ionad an gháis a mhéid a bhainfear amach an leibhéal céanna cosanta.