As a fraction of our energy mix, renewables in general and solar power, in particular, are growing faster than ever. What seemed like an impossibility just a decade ago—the displacement of fossil fuels from the U.S. power system, if not the world’s—is increasingly a reality. Here are three possible visions of our renewable-energy-powered future: 1. There’s mass defection from power grids, as citizens and corporations alike end a dependence on regulated monopolies that date all the way back to the days of Thomas Edison. 2. The same utility companies that now handle energy continue to oversee and balance a grid increasingly powered by renewable sources, and we hardly know the difference. 3. The landscape gets politically messy and technologically diverse, varying by locale, as utilities, customers and politicians battle over new ways […]