This fusion startup just raised another $1 billion for its first commercial power plant

For decades, fusion energy has seemed just out of reach. The technology, which could provide cheap clean energy around the clock, still isn’t proven. But companies are now betting that it’s ready to finally leave the lab. CEO Bob Mumgaard [Photo: Commonwealth Fusion Systems] Last month, the MIT spinout Commonwealth Fusion Systems (CFS) raised another $1 billion to help it begin to build its first power plant in Virginia, set to come online in the 2030s. (The company has raised $4 billion to…