Further stimulus was provided by the Renewable Energy Sources Act (Erneuerbare-Energien-Gesetz), enacted in 2000 and amended later. It grants renewable energy project developers privileged access to the nearest grid connection point, which minimizes the risk of unforeseen grid costs for the investor. The investment certainty based upon the feed-in-tariff is complemented by low-interest loans and grants from the state-owned KfW bank. We inserted a marker for each policy tool implemented, which is considered to support investment in physical capital directly.