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 (German: Berliner Mauer) separated the city of Berlin in Germany from 1961 to 1989. It separated the eastern half from the western half. Many people thought it was a symbol of the Cold War. The Berlin Wall was taken down on November 9, 1989.The Berlin Wall was about 168 km (104 miles) long.It was built to prevent people from escaping from the eastern half of Berlin.any people thought it was a symbol of the Cold War. The Berlin Wall was taken down on November 9, 1989. The Berlin Wall was about 168 km (104 miles) long. It was built to prevent people from escaping from the eastern half of Berlin.