The Catalan Institute for Energy (ICAEN) is the entity of the Government of Catalonia responsible for developing and carrying out the Catalan energy policy, especially in the field of energy efficiency and renewable energy. The mission of the energy policy of the Government of Catalonia is to achieve an economy and a society of low energy intensity and low carbon emission, innovative, competitive, and sustainable in line with the European objectives. ICAEN develops programs to promote RES and energy efficiency in all economic sectors: industry, transport, primary and buildings. ICAEN is in charge of buildings Energy Performance Certification in Catalonia and leads the Energy Efficiency Plan of the Catalan Government buildings. In addition, ICAEN is involved and works jointly with the local community in the development of energy efficiency actions in municipal buildings, public lighting or efficient mobility. Likewise, ICAEN collaborates with other Ministries of the Catalan Government to develop transversal actions such as the National Agreement for the Energy Transition of Catalonia, the Action Plan for Energy Efficiency in Industry, the Catalan Strategy for Energy Renovation of Buildings or the Biomass Strategy.