India is the world’s third-largest producer of electricity, and three-quarters of this electricity comes from coal-based thermal power plants. But despite having one of the world’s largest coal reserves, the country is often teetering on the brink of a power crisis. Last year, it was an unexpected surge in demand as the economy picked up after a deadly Covid wave; this year, it’s been an earlier-than-expected intense heatwave coupled with the war in Ukraine that is making coal imports costly and unaffordable. In fact, the power crisis rose to such a level that over 100 passenger trains had to be cancelled to make way for coal carriages.