June 1, 2026
E.ON Innovation Co-Investments will test Stormentum’s modular inverter system at E.ON’s facility in Essen, Germany — the company’s first international validation engagement.
AUSTIN, TX — June 1, 2026 — Stormentum, a next-generation energy systems company, today announced a testing and validation agreement with E.ON Innovation Co-Investments Inc. Signed in May 2026, the agreement provides Stormentum access to E.ON’s testing facility in Essen, Germany to conduct independent technical evaluation of its modular inverter system — marking Stormentum’s first international validation engagement.
“Gaining access to a world-class testing facility operated by one of Europe’s leading energy companies is a significant milestone,” said George Holmes, Chairman and CEO of Stormentum. “Independent validation by major energy infrastructure operators is a critical step in demonstrating the commercial readiness of our platform — and a strong signal that the largest players in global energy are paying attention to what a fundamentally different power conversion architecture can deliver.”
Under the agreement, Stormentum’s engineering team will operate within E.ON’s Essen facility through December 31, 2026, testing its hardware and software platform with both parties contributing technical expertise to the evaluation.
Stormentum’s patented MMC architecture replaces multiple purpose-built power electronics systems with a single software-defined platform that scales from residential solar and storage into microgrids, EV infrastructure, AI data centers, and utility applications. The E.ON engagement will inform further refinement of the platform for grid-connected and utility-adjacent deployments.
About Stormentum
Stormentum is building a software-defined, distributed power platform for the electrified, AI-driven era. Its patented Modular Multilevel Converter (MMC) architecture combines distributed power conversion, storage integration, and intelligent control into a unified platform that simplifies how electricity is generated, stored, managed, and delivered. Beginning with residential solar and storage and extending into microgrids, EV infrastructure, AI data centers, and distributed energy systems, Stormentum’s technology reduces system complexity and cost, improves resiliency, and provides a foundation for the next generation of electrical infrastructure. For more information, visit stormentum.com.
About E.ON Innovation Co-Investments
E.ON is an international, investor-owned energy company focused on networks, infrastructure and customer solutions, driving the transition toward a clean, digital, and decentralized energy system. The company serves over 51 million customers, providing energy and sustainable solutions with a workforce of approximately 72,000 employees. Read the full details at E.ON
Forward-Looking Statements
This press release contains forward-looking statements within the meaning of applicable securities laws. These statements involve known and unknown risks and uncertainties that may cause actual results to differ materially. Forward-looking statements include, without limitation, statements regarding testing timelines, product development objectives, and strategic goals. Stormentum undertakes no obligation to update any forward-looking statement. Nothing in this press release constitutes an offer to sell or a solicitation of an offer to buy any securities. Any offering of securities will be made only by means of a private placement memorandum or other offering documents delivered to qualified investors in compliance with applicable law.
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