Previous paragraph has more info: > A world that mostly runs on solar power will also need something else—such as hydropower, nuclear, or geothermal—to generat

Previous paragraph has more info: > A world that mostly runs on solar power will also need something else—such as hydropower, nuclear, or geothermal—to generate energy when the sun isn’t shining in the evenings and winters. Jessika Trancik, an MIT professor who models clean-energy development, told me that governments need to steer investments toward storage and alternate forms of energy to compensate for that inherent downtime. That way, the world can have a reliable energy mix when 50 or 60 percent of electricity generation comes from solar and wind. I'd expect that the solar subsidies mentioned by the last paragraph are for solar-adjacent technologies like energy storage, not the panels themselves.