The development of Electric power generation and supply somehow could not receive due attention and priorities in the erstwhile integrated state of Bihar. Inspite of being the second most populous state endowed with all natural resources, the state had the distinction of having the least capacity of power generation. The state had a paltry 1500 MW installed capacity i.e. a meagre 20 watts per capita against national average of 100 watts per capita. The undertakings of the department are - Jharkhand Urja Vikas Nigam Ltd. - Ranchi, Jharkhand Bijali Vitran Nigam Ltd.- Ranchi, Jharkhand Urja Utpadan Nigam Ltd. - Ranchi, Jharkhand Urja Sancharan Nigam Ltd.- Ranchi, Jharkhand Renewable Energy Development Agency- Ranchi , Tenughat Vidyut Nigam Ltd- Ranchi.