Hot Rock, Cold Cash: The $135 Million Bet on Geothermal's Dark Horse The latest infusion of cash into Mazama Energy is a reminder that geothermal energy has been quietly gaining traction.
This week, the startup announced it had raised $135 million in an oversubscribed Series B funding round, bringing its total investment to $180 million.
Behind this new wave of interest lies a deeper understanding of geothermal's potential.