• Energy act >> www.doe.bg

  • Energy efficiency act >> www.seea.government.bg

  • Regulation for Certification of the origin of electric
    power generated by renewable and/or combined-generation
    sources, issuance of green certificates and their trading >> www.dker.bg

  • Directive ¹ 2002 / 415 / EU July 22, 2002 of The European Parliament
    and The Council of:
    "The promotion of cogeneration based on a useful heat demand in
    the internal energy market"