Exergy Power Systems

Exergy Power Systems Inc. operates as a key player in the energy storage sector, originating from research conducted at The University of Tokyo and officially founded in May 2011. The company's genesis is tied to the work from Atsushi Tsutsumi's Lab at the University's Institute of Industrial Science, with early and continued support from UTEC. Currently led by CEO Dr. Mike Musil, the firm focuses on developing and deploying advanced battery energy storage systems (BESS) and high-speed energy management systems (EMS).

The core of Exergy's business is providing distributed backup and grid stability services. It addresses the challenges posed by the increasing integration of variable renewable energy sources like solar and wind, which can cause grid instability. The company serves two primary client types: large-scale power consumers (e.g., factories, hospitals) and grid operators, including transmission and distribution companies. Instead of only selling hardware, Exergy offers a comprehensive service model, providing flexibility services to Transmission System Operators (TSOs) by installing and operating its proprietary battery systems. This approach allows clients to enhance their energy resilience and support the transition to renewable energy without substantial upfront capital expenditure. The business model is concentrated on markets with high renewable energy penetration, such as Europe, particularly the UK and Ireland, with plans to replicate its success in Japan and other regions.

Exergy's flagship product is the "Exergy Battery®," a next-generation nickel-hydrogen storage battery. A key feature of this technology is its unique structure that facilitates rapid heat escape, enabling charge and discharge rates 20 to 200 times faster than conventional storage batteries. This lithium-free BESS is designed for high-output and continuous, rapid charge and discharge cycles. The company also offers hybrid solutions that integrate their BESS with other Distributed Energy Resources (DERs) like backup generators and fuel cells, all managed by a proprietary Digital Hybrid Controller (DHC). This system provides a robust Uninterruptible Power Supply (UPS) and enhances power quality for clients with critical Business Continuity Plans (BCP).

Keywords: energy storage systems, grid stability, battery energy storage systems (BESS), energy management systems (EMS), distributed energy resources (DER), renewable energy integration, backup power, power quality, flexibility services, Transmission System Operators (TSO), nickel-hydrogen battery, uninterruptible power supply (UPS), high-speed charging, energy resilience, University of Tokyo spin-off, grid services, clean technology, sustainable energy, carbon neutral, utility services