The German Renewable Energy Law (EEG) has been a very successful instrument in raising
the share of the renewable energies that are not yet competitive. However, a detrimental
consequence of this policy is that, through specific feed-in tariffs, it hinders the competition
among particular renewable energies. Within the framework of the “Lead Study 2008” the
German Government set targets both for renewable energies and related technologies and
hence affects the particular feed-in tariff. By means of a static model, we analyse in this article
the efficiency of the targets for 2020 regarding renewable energies and show that they can
be achieved at lower costs.