Nations are coming to grips with their overdependence on renewables, and reconsidering their closure of nuclear plants. : Spaniards protesting higher electricity prices (Photo by Marcos del Mazo/LightRocket via Getty ... [+] Images) Over the last decade, energy experts repeatedly assured policymakers around the world that increasing the use of renewables, while shutting down nuclear plants, would make energy supplies more secure, while lowering prices. To make their case, experts pointed to radical declines in the price of solar panels, wind turbines, natural gas, and lithium batteries.