Breakthrough Energy

Breakthrough Energy is the cleanest expression of a long-time-horizon climate fund: large checks into capital-intensive, hardware-heavy categories that traditional VC won't touch. Commonwealth Fusion Systems, TerraPower, multiple fusion approaches — these are the bets that pay off in 2030+ but define the energy mix of the AI era.

Watch their concentration vs. diversification ratio. As more fusion companies hit credible milestones, BEV's allocation across the field will tell you which approaches they think are actually commercializable. The CFS SPARC net-energy-gain milestone in 2025 validated the high-temp superconductor tokamak thesis.