On today’s episode of “Marketplace Tech,” Meghan McCarty Carino speaks with Daniel Cohan, professor of civil and environmental engineering at Rice University, about virtual power plants. These aren’t physical generating stations. They’re more of a network, usually managed by a local utility, that aggregates electricity from  different sources like businesses or homes. Essentially, these customers give energy back to the grid or help the utility balance supply and demand. As electricity demand grows, thanks to power-hungry AI data centers, electric cars and extreme weather, some providers are turning to virtual power plants to reduce strain on the grid.