AEA: Austrian Energy Agency

ENEA: Ente per le Nuove Tecnologie l’Energia e l’Ambiente

DEA: Danish Energy Agency

ADENE: Agencia para a Energia

ADEME: Agence de l’Environnement et de la Maitrise de l’Energie

Eurostat

BUILD UP: The European Portal For Energy Efficiency In Buildings

Scientific & Technological References – Energy Technology Indicators

TREN: The Directorate – General for Energy and Transport

European Commission’s Research

EERA: European Energy Research Alliance