With a population of more than 1.2 billion people - spread across the world's seventh-largest country by area - the energy challenges facing India are vast and varied.
More than 300 million people in the country, for instance, lack access to electricity, according to the World Bank.
And while coal, oil and gas play a crucial role in meeting India's energy needs, the country is also investing heavily in the development of solar power.
The authorities are aiming to install 20,000 megawatts (MW) of solar power capacity by 2022 – by contrast, the U.S. had a cumulative solar electric capacity of 13,000 MW in 2013, according to the Solar Energy Industries Association.
The construction of vast, sweeping installations - such as the 5,000-acre Gujarat Solar Park, which authorities hope will save eight million tonnes of CO2 a year - highlight the scale of India's ambition. There are concerns, however, that plans to impose anti-dumping duties on overseas products could hit the country's ability to deliver projects on this scale.
Smaller programs, though, are already having a transformative effect on people's lives.
Crumbling infrastructure had left the residents of Dharnai, a rural village in Bihar, eastern India, without electricity for decades. That all changed in March of this year, when Greenpeace set up a 100-kilowatt, solar-powered cluster of micro grids in the village, which has a population of just over 2,000.
Some 70KW of clean, renewable energy will meet domestic needs, with 30KW being set aside for irrigation. Prior to the micro grid, Dharnai relied on diesel generators.