The main aim of this report is to identify the different sustainable sources and systems of
energy and their technological principle which are under substantial development
replacing the conventional or traditional sources of energy. It is also the objective of this
study to indentify the advantages and disadvantages of each system of energy in their
current application now and in the future. In addition, the report discusses the different
Energy Systems and Efficient Energy Management systems, which are currently in use.
Moreover, the report addresses the environmental, social and economic aspects
sustainable energy in the context of buildings and small villages.