The paper illustrates the main activities carried out concerning development and application of renewable-energy technologies in Egypt. Main attention is devoted to biogas technology, solar and wind energy technologies. The main constraints for implementation o f renewable-energy technologies in Egypt and the activities carried out for its release are highlighted. The coordination between the Islamic and other developing countries is highly needed, to achieve marked progress in implementation of renewable energy and sustainable development. Establishment of a network for renewable energy among the Islamic countries can play an active role in these aspects.