The improvement of the energy performance of nearly 550000 residential units has been financially supported.
The new structure of the funding system following the ratio of the energy performance compared to a regular building has proven to be effective and comprehendable also for non-experts. For example an energy efficient house 70 (KfW-Effizienzhaus 70) uses 70 % of the primary energy of a regular building.
The high number of fundings was possible because the German government has increased the capital for the programmes due to the high demand in the middle of 2009.KfW Bankengruppe gives impetus to economic, social and ecological development worldwide. As a promotional bank under the ownership of the Federal Republic and the Länder (federal states), it offers support to encourage sustainable improvement in economic, social, ecological living and business conditions, among others in the areas of small and medium-sized enterprise, entrepreneurialship, environmental protection, housing, infrastructure, education finance, project and export finance, and development cooperation.