A new study assessing the potential for German offshore wind energy in the short and middle term has been completed. Entitled "Offshore Wind Systems," the study concludes that "near-shore" offshore wind plants of 18-120 MW could produce electricity at a price range of DEM 0.115-0.23/kWh, much the same as for onshore wind turbines. It also warns of a potential need for greater reserve capacity in an electricity supply system as more wind is connected. "The integration of wind energy systems into the regional and national power station grid will tend to lead to an increase in the necessary power station reserve capacity with consequences for the planning of future power station planning," the report states. Offshore Wind Systems was completed by a team led by Vulkan Engineering of Bremen, Siemens and the utility Preussenelektra. These commissioned a series of studies from 11 other companies, six of which are based in and around the Baltic port of Rostock including Wind Consult, while others such as Heidelberg Motor were from inland areas. These reports were combined into the final study, 50% of which was paid for by the federal research ministry.