Renewable energy utilisation is presently at its infancy in Nigeria despite its nation and global relevance. This paper attempts an examination of renewable energy policies aim of finding out how relevant and effective they have been in the Nigeria energy mix. Research shows that the implementations of these renewable policies are not fully effective as a result of several constraints, such as the lack of a supporting legislation, inadequate funding, and absence of a regulatory agency to oversee the development of renewable energy sources. Presently only policies exist for renewable energy in Nigeria. The absence of an effective legislation in renewable energy may hinder the efficient and full utilization of renewable energy in Nigeria. This paper argues for the enactment of an enabling renewable energy law as well as the establishment of a renewable energy agency saddled enforcement of the law, so as to hasten the rapid development and growth of renewable energy utilisation in Nigeria.