Yes. While district energy systems have been around for decades, they have an essential role in our effort to decarbonize quickly. District energy systems are agile; they can swiftly and aggressively integrate renewables into their energy mix as more renewable electrons are available on the grid. By replacing fossil fuel infrastructure with electric boilers, heat pumps, thermal batteries, and other clean technology, district energy systems can effectively decarbonize communities without retrofitting or installing new electrical infrastructure in individual buildings.