The world has turned in the modern era to reduce peak times for electricity consumption, where the peak times cause excessive load on the electricity grid and power stations. In Egypt air conditioning loads are considered the main contributing reasons for the peak time’s problem due to presence of large unshaded glazed surfaces, which cause high thermal loads inside the buildings. In this study, various methods of energy rationalization in buildings are evaluated by using many scenarios, from the obtained results of this research study. It is found that the use of shading on windows is an effective strategy where the percentage of rationalization using scenarios integration reached 40%, and the financial returns have also been calculated based on this work.
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