Can the efficiency of the GreenTower be raised?
Very much so. With today´s new design collector efficiency will most probably exceed 90% and the temperature at the turbine will reach 76°C above ambient. With a resulting Carnot efficiency of 26% the practical limit of real efficiency will be 14%, related to 1 400MW for a GreenTower with the specifications of GT Short Executive Summary. The development potential is thus very high. Since the loss areas are well defined and will be attended to in the feasibility study, considerably more than 400MW will be produced in the future GreenTowers. With 14% efficiency it will compare well with present day mono-crystal photovoltaic cells.