At the outset, it is desirable to study and assess the existing and potential commercial and non-commercial power resources of India in order to fully acquaint with the power sector of the country. The various resources of electrical energy can broadly be grouped under two heads, namely conventional power resources and non-conventional power resources. Conventional power resources are commercial in nature and include hydel, thermal, nuclear and oil and natural gas. Conversely, non-conventional power resources are those which are limited in use and have not yet been harnessed for commercial purposes. Non-conventional power resources are renewable and include solar, tidal, geo-thermal and wind resources of power.

KEYWORDS: Power Resources, Electrical Energy, Conventional Power, Non-conventional Power.