commercial fusion is the emerging industry of privately financed companies working to deliver 📝fusion electricity to the grid.
The term marks a distinction from the public fusion enterprise that preceded it. For seventy years fusion advanced through government laboratories and international projects, on roadmaps that ran through 📝ITER to a demonstration plant around mid-century. Commercial fusion inverts the model: venture- and strategically-funded companies design their own machines, raise private capital against technical milestones, and target the grid on business timelines — years, not generations. The industry took recognizable shape after 2018, and by the mid-2020s comprised dozens of companies worldwide backed by billions of dollars in private investment, tracked annually by the 📝Fusion Industry Association (FIA).
Commercial does not mean unaided. The industry's scaffolding is public-private: the 📝DOE Milestone-Based Fusion Development Program pays companies for verified progress toward a 📝fusion pilot plant (FPP), and the 📝NRC byproduct-materials framework gives fusion plants a licensing path separate from fission reactors. What distinguishes commercial fusion is not the absence of government but the location of risk: private investors, not taxpayers, carry the cost of failure, and the product being promised is not scientific knowledge but electricity sold under contract.