Utilities race to partner with fusion startups, Realta Fusion the latest to benefit

Fusion startup Realta Fusion this week announced a deal with Madison Gas and Electric (MGE) that could lead to one of the first grid-connected fusion power plants in the United States, to be located in Wisconsin. The partnership underscores a broader trend: utilities worldwide are increasingly courting fusion startups—a dynamic that reflects both mounting anxiety over future power supply and genuine progress in fusion technology. For founders and investors tracking the sector, such tie-ups serve as a real-world credibility check. A utility deal offers fusion startups multiple advantages, including engineering support, permitting assistance, site selection for grid interconnection, and land leases. In return, utilities gain early access to a technology that could reshape the electricity grid for decades. To date, only a handful of fusion startups have announced partnerships with utilities, making agreements like this one particularly notable. Realta's deal with MGE involves exploring the construction of a 200-megawatt power plant—roughly enough to power a small city—targeted for the mid-2030s. As part of the agreement, the utility has also made an equity investment, though Realta did not disclose specifics and did not immediately respond to TechCrunch's request for further details. The startup is currently converting an old Oscar Mayer factory in Madison into its research and development facility. Beyond funding, Realta gains access to interconnection sites—a crucial advantage as power providers and consumers compete for grid access across the country. The startup will also receive engineering and technical assistance, along with financing support for the eventual power plant. Utilities, traditionally cautious, have not always been so forward-looking. For decades, fusion power seemed perpetually on the horizon, repeatedly failing to meet its promises. In recent years, however, fusion startups have made significant strides on both scientific and engineering fronts. These advances, combined with soaring electricity demand from AI data centers, have brought utilities to the table. Fusion power is a natural fit for many utilities grappling with the growth of wind and solar. Both are cheap and clean, but they generate power only when conditions allow. While batteries have become a valuable tool for managing intermittent renewable output, utilities are still seeking fossil fuel-free alternatives that can provide consistent, round-the-clock baseload power. Fusion plants, designed to operate continuously, likely look appealingly familiar to grid operators—even if their underlying technology still carries a hint of science fiction. Among the few other fusion startups to secure such deals is Commonwealth Fusion Systems (CFS), arguably the most advanced. CFS is nearly two years into its partnership with Dominion Energy, having agreed to lease land for its Arc power plant, the company's first commercial-scale project. The plant will connect to the grid near Richmond, Virginia, and is expected to generate 400 megawatts. Both Google and Italian energy firm Eni have signed agreements to purchase electricity from the facility, which is slated to come online in the early 2030s. As 2026 unfolds, the race between utilities and fusion startups appears set to accelerate. With electricity demand projected to surge further—driven by electrification, manufacturing, and AI infrastructure—the push for reliable, carbon-free baseload power has never been more urgent. Utilities that once waited on the sidelines are now actively positioning themselves to secure fusion capacity ahead of their competitors, a shift that could define the energy landscape for the rest of the century. For fusion startups, these early partnerships provide more than just validation. They offer a tangible pathway from laboratory experiments to commercial reality. The support from utilities—in engineering, regulation, and grid integration—can compress years of development timelines. Realta's agreement with MGE, like CFS's with Dominion, signals that fusion is moving from theoretical promise to practical planning. Still, significant challenges remain. Demonstrating net energy gain at commercial scale, proving long-term reliability, and bringing down costs are monumental tasks. Yet the growing list of utility partnerships suggests that the sector's credibility is rising. As Realta works alongside MGE to bring fusion power to Wisconsin's grid, the industry watches closely—not just for scientific breakthroughs, but for proof that fusion can truly power the world.

via TechCrunch Startups