Renewables have their place. The Gobi, Sahara, most of Southwest USA, etc for solar (and wind in some cases). Solar is more likely than wind turbines to give decent returns. Wave (tidal) turbines are a good start too, but the best move forward would be nuclear plants. With huge amounts of electricity available at fractions of the cost of power today, electric-only cars, trains, equipment, etc would take off in a big way. Imagine proximity chargers (induction or otherwise) under parking stalls at Walmart (or just plugs, either way), down freeway stretches, at the employee parking at work, etc. Your furnace would be electric rather than gas. Hot water would be electric rather than gas. Another big thing would be the readily available electricity for the fusion reactor experiments, since those take the power of an entire city (or more!) to actually get the reactor jump-started (and running, since they're not self-sustaining yet).