I. Introduction
Adequate supply of energy is indispensable for any nation's sustainable economic growth and development. Access to energy provides not only economic power, but also plays a critical role in any modern society [1]. Without significant access to energy, a nation will not expand beyond its subsistence level. Lack of sufficient energy affects numerous sectors of the economy, more especially, the educational sector. The increasing number of students being admitted to higher institutions has increased the universities running cost, more especially in terms of energy consumption [2].