PowerX Unveils Rack-Mounted BESS for Data Centers, Targeting 2027 Availability
May 19, 2026
PowerX Unveils Rack-Mounted BESS for Data Centers, Targeting 2027 Availability
Japanese energy storage specialist PowerX has introduced a new rack-mounted battery energy storage system (BESS) specifically designed for the data center industry, as operators increasingly seek flexible power solutions to support high-density AI workloads and grid participation. The product, named "PowerX Energy Blade," is a high-output, lithium-ion battery system engineered for rapid charge and discharge cycles, enabling bidirectional responses to grid supply-demand fluctuations within milliseconds. The company also claims the system supports 800V DC power delivery required by the latest AI GPUs and can replace conventional battery backup units, making it a potential cornerstone for next-generation data center power architectures.
Currently under development, the system is expected to become available in 2027, and PowerX is actively seeking implementation partners. According to the company, the technology will unlock new revenue streams for data center operators by enabling participation in grid flexibility markets and demand response programs. Beyond revenue generation, PowerX asserts that the battery will deliver practical operational benefits, including earlier grid connection under flexible connection schemes, more favorable power supply contracts, and the ability to maximize server deployment within existing power budgets. These features are particularly relevant as data center operators face growing pressure to balance escalating energy demands with grid constraints and sustainability goals.
PowerX has established itself as a large-scale BESS developer in the Japanese market and has already commercialized a containerized data center product called "Mega Power DC," which leverages the company's expertise in container assembly, direct current power control, and thermal management. The firm plans to begin mass production of the modular solution following market validation. In February, PowerX partnered with Internet Initiative Japan to explore the development of containerized data centers integrated with BESS, signaling its broader strategy to embed energy storage deeply into data center infrastructure. The introduction of the PowerX Energy Blade reflects a growing industry trend toward rack-level power management, where granular control and rapid response capabilities become critical as AI workloads drive unprecedented power density and volatility.
Source: datacenterdynamics
