Terrament Elevates Advisor Katie Gardner to CEO to Drive Commercial Scale of Gravity Storage
FOR IMMEDIATE RELEASE
New York City, New York – October 23, 2025 – Terrament, Inc., the long-duration energy storage (LDES) company pioneering a patented, high-density underground gravity storage system, today announced that it has appointed longtime advisor and collaborator Katie Gardner as incoming Chief Executive Officer (CEO) and Co-Founder. Gardner will focus on leading the company through its critical commercialization phase and securing investment.
Founder Eric Chaves, who previously held the CEO title, will transition to Chief Operating Officer (COO), concentrating on operational execution and technical readiness for our upcoming prototype development and our pilot projects.
“Terrament is thrilled to welcome Katie as our new CEO,” said Chaves. “Her impressive background is an exceptional fit for our leadership team. After years of working together, we knew that Katie was perfect for this role, and we couldn’t be more excited for this partnership.”
A CEO Built for Hardtech Deployment
Gardner is uniquely qualified for Terrament’s next chapter, possessing the multi-disciplinary background required to deploy complex, heavy infrastructure. Her expertise as a P.E. Mining Engineer (Ina., NV), an attorney, and an MBA with time spent in Project Finance directly addresses the core challenges of LDES hardtech: engineering, financial structuring, and intellectual property protection.
“The energy crisis facing AI and data centers demands a solution that is low-cost, efficient, and flexible, delivering firm power for 12 hours or more,” said Gardner, incoming Terrament CEO. “We are ready to translate our breakthrough levelized cost (~7¢/kWh) and strong round-trip efficiency (80%+) into bankable infrastructure assets, leveraging the proven fields of mechanical energy storage and mine engineering.”
As COO, Eric Chaves will lead all internal and external engineering teams, manufacturing partnerships, and the execution of the aggressive Technical Readiness Level (TRL) roadmap, ensuring operational success.
About Terrament
Terrament, Inc. developed a patented, modular, underground gravity storage solution designed to solve the global demand for 12-24+ hour duration storage. Terrament’s technology offers high efficiency and a competitive levelized cost (LCOS), providing an unconstrained path to low-cost, flexible energy storage for the power grid and hyperscale data centers. The company’s partnerships include Stony Brook University’s Clean Energy Business Incubator Program (CEBIP), Newlab’s founder fellowship, and Cleantech Open. Their grants and awards include a U.S. DOE EnergyWerx grant which provided funding for outside engineering partners to validate Terrament’s costs and efficiency metrics.
Contact: hello@terramenthq.com