Over half a billion people in India had to live without electricity for up to two days. On July 31, the electricity grid across north and eastern India collapsed. Hospitals, businesses, and homes were in darkness. Trains stopped working. Traffic lights couldn’t operate, causing traffic jams. Miners were stuck inside mines. India, with over 1.2 billion people, has the world’s second largest population. Demand for electricity has been growing rapidly as more people can now afford things like refrigerators, TVs, computers, air conditioners, and other electrical devices. However, India’s electricity supply has not been able to keep up with the demand.