
[Translated from German article] A number of operators, among them Amprion, 50Hertz Transmission and EnBW, are planning the construction of 3 power lines. The latter will enable the flow of wind and solar electricity throughout Germany. However, this project could take up to one decade, because of the authorization process. It is being considered to use high voltage direct current (HVDC), which are already planned to be deployed in a DESERTEC-Project for a solar power plant in North Africa. Admittedly, their use has been scarce in Europe so far. Moreover, first feasibility studies have been set, which should identify the best layout of the lines, the exact costs as well as the best technology. As for mid 2012 the operators have to provide a plan for the development of the grid, which will then be updated annually. The laying of underground cables as opposed to overhead circuits, offers smaller space consumption and considerably less civil protests, but costs up to 6 times more. Another option would be to install the cables on existing power poles, which would not only save a large amount of costs, but also reduce civil protests against new constructions.
Read (German) article on www.welt.de