{{Navbox | name = User:Sm-neutron/navbox blank | title = Navbox form | listclass = hlist | state =
| group10 = Overviews | list10 =
| group20 = Solar
| list20 =
| group40 = Wind power | list40 =
| group70 = Water power | list70 =
| group80 = Environmental problems | list80 =
| group90 = Public measures
| list90 = | list20 =