Champaign, IL – September 25, 2025 – Cache Energy is pleased to announce a collaboration with the U.S. Army Engineer Research and Development Center – Construction Engineering Research Laboratory (ERDC-CERL) to test an energy storage system that supports energy resiliency and reliability for military installations during emergency events, grid outages, and extreme weather conditions.
The project centers on Cache’s proprietary thermochemical energy storage (TCES) technology, which uses a calcium oxide/hydroxide-based reaction to store energy over extended periods of time. The system will be capable of delivering multi-day backup power without the reliance on generators or complex fuel logistics — helping ensure mission continuity for Department of Defense installations in vulnerable or remote locations.
“Energy resilience is critical to national security, especially as extreme grid events and infrastructure vulnerabilities grow,” said Arpit Dwivedi, Founder at Cache Energy. “Our collaboration with ERDC-CERL focuses on refining our existing energy storage system through targeted design modifications and the integration of new features to meet the unique demands of Army operations.
A key advantage of Cache’s TCES platform is its use of abundant domestic materials and U.S.-based manufacturing while providing long duration, up-to interseasonal energy storage. Calcium oxide is derived from limestone, and the United States is one of the leading producers of limestone globally, ensuring a robust and secure supply chain. All major components of the Cache’s systems are designed, sourced, and manufactured within the U.S., reinforcing the country’s strategic energy independence and reducing reliance on foreign energy technologies or materials.
“We’re excited to be evaluating the long term energy storage system from Cache Energy,” said team leads at ERDC-CERL. “The technology shows potential to support military installations with multi-day power and may offer a way to ease the logistical challenges associated with conventional backup systems.”
The initial objective is to deliver a system that will undergo performance testing under various extreme conditions, to qualify its effectiveness in both deployed and domestic military applications. The system’s simplicity and low CAPEX makes it suitable for both backup power and increasing capacity factor of renewable energy sources.
About Cache Energy
Cache Energy is a U.S.-based technology company that produces advanced thermochemical energy storage systems for long-duration energy storage and heat electrification. Headquartered in Champaign, IL, Cache’s mission is to deliver scalable, domestically manufactured energy solutions that strengthen energy resilience and independence across industrial, grid, and defense applications.
About ERDC-CERL
The U.S. Army Engineer Research and Development Center’s Construction Engineering Research Laboratory (ERDC-CERL) conducts research and development to support sustainable, resilient, and energy-secure military installations and infrastructure. CERL develops technologies that enhance operational capabilities, energy efficiency, and environmental performance for U.S. Army facilities worldwide. Team Leads: Scott Lux / scott.m.lux@usace.army.mil: Dominique Gilbert / Dominique.s.gilbert@usace.army.mil; Natalie Becerra-Stasiewicz / natalie.a.becerra-stasiewicz@usace.army.mil.