My sense was these were prototype projects, and that once they're proven and fine-tuned they'll be expanded to larger scales. "These hubs are going to help us

My sense was these were prototype projects, and that once they're proven and fine-tuned they'll be expanded to larger scales. "These hubs are going to help us prove out the potential of this game-changing technology so that others can follow in their footsteps," Granholm says.