Lightrock and Planet First Partners led a $125m Series D round in Sunfire, a provider of industrial electrolyzers, with participation from Carbon Direct Capital Management and HydrogenOne Capital. "Today’s announcement marks the largest equity raise of a green-hydrogen-focused private company anywhere to date. These new funds will allow Sunfire to bring its advanced pressurized alkaline and game-changing solid oxide (SOEC) electrolysis technologies to industrial scale, building the first in a series of production gigafactories, creating both meaningful electrolysis capacity for our customers and attractive returns for our investors," Nils Aldag, Sunfire CEO.