Half way through the seventies a team of eight mostly German scientists and technicians was working on the planning of the first hydro-solar depression power station in the world. The first "Bassler study" of 1973 laid the basis for the Egyptian government to commission a study of its own. It decided in 1975 that Bassler and a group of companies known as "Joint Venture Qattara" should conduct a feasibility study of the project.