This assumes significance in view of India's ambitious target of having 175 gigawatts (GW) of renewable energy by 2022.: Power Minister R K Singh has said that as much as USD 70 billion (about Rs 5.2 lakh crore) has been invested in renewable energy across the country in the past seven years. This assumes significance in view of India's ambitious target of having 175 gigawatts (GW) of renewable energy by 2022. Singh was addressing at an event on 'Accelerating Citizen Centric Energy Transition' yesterday evening, organised by The Ministry of New and Renewable Energy (MNRE).