Deutsche Bank sees substantial room for improvement over the longer term in cost per watt terms â from $0.50/w to $0.20/w â as solar gains mainstream acceptance, is recognized as a cost competitive source of electricity, and companies develop new/improved methods to interact with customers.nverter prices typically decline 10-15 per cent per year, Deutsche Bank says, and it expects this trend to continue into the future. Large solar installers are already achieving $0.25/w or lower on large supply deals, and additional savings will be found over the next several years.
Construction of the Berlin Wall. The Berlin Wall was erected on August 13, 1961. Early on that Sunday morning the GDR began, under Secretary General Erich Honecker, to block off East Berlin and the GDR from West Berlin by means of barbed wire and antitank obstacles.
The Berlin Wall was both the physical division between West Berlin and East Germany from 1961 to 1989 and the symbolic boundary between democracy and Communism during the Cold War.Dates: August 13, 1961 -- November 9, 1989. Also Known As: Berliner Mauer (in German).he Berlin Wall was both the physical division between West Berlin and East Germany from 1961 to 1989 and the symbolic boundary between democracy and Communism during the Cold War.