Fusion startup Realta Fusion this week announced a deal with Madison Gas and Electric that will place one of the first grid-connected fusion power plants in the country in Wisconsin. The partnership comes as utilities around the world have been jockeying to court fusion startups, a courtship that says as much about utilities’ anxiety over future power supply as it does about fusion’s progress. For founders and investors watching the sector, these tie-ups serve as a kind of real-world credibility check.
A deal with a utility offers several advantages for a fusion startup, ranging from engineering support and permitting assistance to site selection for grid interconnection and land leases. For utilities, such deals give them early access to a technology with the potential to reshape the grid for decades to come. To date, only a handful of fusion startups have announced deals with utilities, which makes agreements like this one so newsworthy.
Realta’s deal with Madison Gas and Electric will explore the construction of a 200-megawatt power plant — roughly enough capacity to power a small city — sometime in the mid-2030s. The utility also made an equity investment as part of the deal, though Realta did not reveal specifics and did not immediately reply to TechCrunch’s request for more information. The startup is currently converting an old Oscar Mayer factory in Madison to serve as its research and development facility.
In addition to funding, Realta gains access to interconnection sites, a key advantage as power providers and users scour the country for a place to hook up to an increasingly connected electrical grid. Realta will also receive engineering and technical assistance along with financing for the eventual power plant. Utilities, which are typically cautious, weren’t always so forward: For decades, fusion power appeared to be just over the horizon, but for nearly as long it failed to deliver on its promises.
In the last few years, though, fusion startups have made significant strides on both scientific and engineering challenges. Those advances, juxtaposed with soaring demand from AI data centers, have brought utilities to the table. Fusion power offers a natural fit for many utilities, which have been tested by the growth of wind and solar.
Both are cheap and clean, but they only generate power when the wind blows or the sun shines. And while batteries have offered a new tool to stabilize intermittent power flows from renewables, utilities have also been searching for fossil fuel-free alternatives that can provide consistent power 24/7, so-called baseload power plants. Fusion power plants, which are being designed to operate round the clock, must appear tantalizingly familiar to grid operators, even if their inner workings have a whiff of science fiction about them.
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