The Energy transition is the shift by several countries to sustainable economies by means of renewable energy, energy efficiency and sustainable development. This trend has been augmented by diversifying electricity generation and allowing homes and businesses with solar panels on their rooftops to sell electricity to the grid. In the future this could "lead to a majority of our energy coming from decentralized solar panels and wind turbines scattered across the country" rather than large power plants. The final goal of German proponents of a nuclear power phase-out is the abolishment of coal and other non-renewable energy sources.