In the race to reduce the world’s reliance on fossil fuels, cost is a huge factor. It’s taken years, but advances in technology and increases in both efficiency and output have helped bring down the expense of renewable energy, which has in turn increased demand. Globally, fossil fuels are still cheaper than these alternative sources, but there are a few places around the world where clean energy is winning, dollar for dollar. Sometimes, too, there’s so much of it that the market price drops to zero. With the cost of renewable energy getting lower by the year, if not the month, environmental advocates are hopeful that energy sources like solar and wind power can eventually edge out fossil fuels entirely. Let’s take a look at some of the locales where renewable energy is proving that a clean world doesn’t have to be more expensive.