The international promotion of the production and use of energy in an efficient, ecological and economic manner. To achieve these goals, the association develops scientific criteria and testing procedures for the evaluation of products, systems, buildings and services based on these criteria, mainly in the areas of lighting, buildings, household, industry and office, entertainment, mobility and ecologically produced electricity. It also aims to promote instruments that enable consumers, companies and institutional buyers to identify energy-efficient, ecological and economic products, systems and services. The association promotes the harmonization and improvement of such standards and their dissemination. The association is responsible for training partners and is responsible for quality control of Topten projects.