Cryogenic Energy Storage Innovation Focused on Repowering Peaker Plants

Cryogenic Equipment Services, LLC (CES) is a U.S.-based engineering company focused on advancing liquid air energy storage (LAES) systems designed specifically to repower aging and decommissioned peaker plants across the United States.

CES Energy Storage builds on more than four decades of cryogenic engineering expertise from its parent organization, applying proven industrial air‑separation technology to modern grid-scale energy storage. The company’s patented liquid air energy storage platform is engineered to transform existing peaker plant infrastructure into clean, efficient, long‑duration energy storage facilities capable of delivering dispatchable electricity during periods of peak demand.

Outdoor view of large industrial metal tanks with connected pipes and concrete surroundings.

Addressing the Challenges of America’s Aging Peaker Plant Fleet

Across the United States, thousands of megawatts of peaker plant capacity remain essential for grid reliability. These facilities were designed to operate only during periods of peak electricity demand, yet many are aging, inefficient, and increasingly subject to environmental regulations.
CES focuses on repowering these legacy facilities using liquid air energy storage rather than building entirely new generation infrastructure. By utilizing existing peaker plant locations, grid interconnections, and electrical equipment, CES enables utilities and infrastructure investors to modernize critical assets while maintaining the dispatchable power the grid requires.

Engineering Built for Real-World Deployment

Every CES liquid air energy storage system is developed with a constructability-first mindset. The company focuses on practical integration with existing energy infrastructure and emphasizes:

Integration with existing peaker plant sites
Scalable system architecture
Proven cryogenic process technology
Reliable grid-connected power generation
Modular deployment for faster implementation

CES collaborates with utilities, energy infrastructure developers, investors, and strategic partners across the United States who are seeking a cleaner and more efficient solution for peak power generation.

Industrial storage tank with metal stairs in an outdoor facility under clear sky.

Meet the Team

Pam Keech, CEO

Brings 35+ years of experience in leading projects and operations, and will guide LAES solutions to market, delivering scalable, zero emission energy while driving growth, operational experience and investor value.

John D. Upperman, Founder

Brings visionary leadership and strategic direction to our venture. With his extensive experience and entrepreneurial acumen, John is the driving force behind the company’s innovative approach to LAES technology.

Mathew Ryan, Technical VP

The technical cornerstone of the team. His expertise in designing and executing complex energy projects ensures LAES is efficient, high-quality and innovative.

Mark Sindeband, Business Development

His deep expertise in building and executing large energy projects, combined with his financial knowledge and experience evaluating project economics, will provide strategic direction for applying the LAES to Peaker Plants.

Runee Harris, Marketing

With his extensive industry experience is skilled at positioning LAES as safe, efficient and scalable solution for replacing ageing peaker plants.