Germany is the country with the largest installed PV capacity in the world. As a result, Germany needs to be one of the first countries to look at adequate network integration. To tackle the challenges of the power system with regard to high PV penetration in the future, incentive systems are already formed and prepared that go one step further with regard to system integration. Also, grid codes for grid connection to the distribution network are defined that require grid-supportive behavior from PV systems. Real network integration by providing ancillary services for system operation is the aim of these new measures in Germany. Integration studies with different perspectives are performed in Germany.