Utilities race to partner with fusion startups as Realta Fusion strikes new deal
US startup Realta Fusion has signed a deal with Wisconsin utility Madison Gas and Electric to explore building one of the country's first grid-connected fusion power plants. The agreement reflects a broader trend of utilities worldwide rushing to partner with fusion companies.
Fusion energy startup Realta Fusion this week announced a partnership with Madison Gas and Electric to explore construction of a 200-megawatt fusion power plant in Wisconsin, with a target timeline in the mid-2030s. The planned facility would generate roughly enough electricity to power a small city. Realta is currently converting a former Oscar Mayer meat-processing factory in Madison into its research and development facility.
As part of the deal, Madison Gas and Electric also made an equity investment in Realta, though financial details were not disclosed. Beyond funding, the utility is providing Realta with access to grid interconnection sites as well as engineering and technical support for the eventual power plant.
A broader pattern
The Realta agreement fits into a growing pattern of utilities around the world seeking partnerships with fusion startups, driven largely by surging electricity demand from AI data centers. Such deals give startups access to land, permitting assistance and interconnection sites, while utilities gain early access to a technology that could reshape power grids for decades to come.
Other notable partnerships include Commonwealth Fusion Systems' agreement with Dominion Energy in Virginia, where a planned 400-megawatt plant called Arc has already secured electricity buyers in Google and Eni. Helion is working with the Chelan County Public Utility District in Washington State, aiming to switch on a 50-megawatt plant by 2028 to supply Microsoft. Type One Energy plans a 350-megawatt facility on a former coal plant site in Tennessee, while in Europe, Proxima Fusion is developing a plant on the grounds of a decommissioned nuclear facility in Germany in partnership with utility RWE.
While building a commercial fusion power plant can still take roughly a decade, utilities increasingly view the risk of not investing in the technology as greater than the risk of doing so, given rapidly rising electricity demand.
