The collaboration leverages Realta’s magnetic mirror fusion technology, known as CoSMo fusion, to advance MGE’s long-term goal of achieving net-zero carbon electricity by 2050. Beyond the equity stake, MGE will assist with critical infrastructure requirements, including site selection, permitting, and grid interconnection. This project builds on an established local connection, as Realta recently secured a 250,000-square-foot facility at the former Oscar Mayer site in Madison to house its research operations, dubbed The Realta Forge.

Realta CEO Kieran Furlong noted that the partnership signals a transition for fusion energy from theoretical potential to practical application. For MGE, the project aligns with a broader strategy of investing in emerging technologies to provide reliable, carbon-free power to its 170,000 electric customers. Realta, which is currently backed by Khosla Ventures and Future Ventures, remains one of the few organizations selected for the U.S. Department of Energy’s Milestone-Based Fusion Development Program.