Renewable energies except solar electric or thermal (seeforums dedicated below): wind turbines, marine energies, hydropower and hydropower, biomass, biogas, deep geothermal energy ...
Erneierbar Energien ausser solar elektresch oder thermesch (kucktforumDeegent): Windenergieanlagen, Marineenergie, Waasserstoff a Waasserstoff, Biomass, Biogas, déif geothermesch Energie ...