Within the next year and a half EU member states need to adjust their support schemes for the generation of renewable based electricity to the prescriptions of the EU guideline on state aid published in 2014. As the main rule, the guideline requires the allocation of support through a bidding process and the direct market sale of the produced electricity. Accordingly, the support schemes based on feed-in tariffs and the obligatory purchase of the produced electricity, currently still applied in a number of member states, need to be amended: either a green certificate system has to be introduced, or renewable based electricity generation can be supported through a bidding process based premium. The deadline for the introduction of the measure of directly selling in the market is 1 January 2016, while the deadline for competitive bidding processes is 1 January 2017.