More daytime electricity from the sun instead of coal — that helps hold down power bills and keeps smoke out of people's lungs. Adani Green has switched on another 139 MW solar project at Khavda in Gujarat, taking its operational renewable capacity past 20 GW. Khavda is being built block by block and is roughly a third of the way to a planned 30 GW; each unit that goes live turns money already spent into power actually being sold.