The Deutsche Energie-Agentur GmbH (dena) - the German Energy Agency - is the German competence centre for energy efficiency and renewable energies. Its manifold objectives include the rational and thus environmentally friendly production, conversion and use of energy, and the development of sustainable energy systems with a greater emphasis on renewable energy sources.

To this end dena initiates, coordinates and implements innovative projects and campaigns at a national and international level. It provides information to end consumers, works with all social groups active in politics and the economy and develops strategies for the future supply of energy. Its shareholders are the Federal Republic of Germany and the KfW Bankengruppe (KfW Banking Group).

dena was established in the autumn of 2000 in Berlin. It started operations in January 2001. .