The annual cost of energy savings is varying from 13337 to 17782 MAD. And if an inflation rate of the electricity rate is considered, this cost become more important. TABLE III summarizes the investment costs detail and the resulting Payback periods for three cases. It can be that the total installation cost, the payback period changes: at minimal installation cost, the payback is 16 years and can be 22 years in the case of maximal installation cost. Accordingly, the reduction of thermal technologies can be described as a decisive factor on the adoption of solar cooling systems.