EnerSys has introduced the DataSafe Noir lithium-based energy storage system, engineered to control power behavior under real-world and dynamic load conditions in data centers. The system is available immediately, aiming to address the challenges of high-density environments and AI-driven workloads by providing predictable, controlled performance.

As data centers grow in complexity, the focus shifts from merely selecting a battery to managing how power systems perform under stress. The DataSafe Noir system is designed as an integrated platform to mitigate system-level risks introduced by variable, real-time power demand. It supports consistent deployment and defined operating performance in high-density settings.

Compared to publicly available specifications for leading lithium systems, DataSafe Noir energy systems deliver more than 2x output power and over 1.7x greater energy and capacity. This allows for more compact deployments and improved utilization of data center floor space.

Operational Impact

The system changes how data center power is deployed and evaluated through several key features:

• Greater control under load: Predictable system behavior in high-density, high-variability environments, including AI-driven load conditions, supported by significantly higher power and energy density.
• Faster, more confident deployment: Integrated system design reduces deployment complexity and validation effort.
• Reduced system-level risk: Defined operating performance improves reliability under real-world conditions.
• Clearer decision-making: System-level design reduces reliance on component comparison and specification analysis.

The introduction of DataSafe Noir expands EnerSys' data center portfolio, building on its established DataSafe Thin Plate Pure Lead (TPPL) battery technology. This provides customers with both traditional lead-acid and advanced lithium-based options, supported by a single provider across multiple chemistries and deployment models.

"The industry has spent years optimizing batteries — increasing energy density and reducing footprint," said John Gagge, Vice President of Business Development, Energy Systems at EnerSys. "But the real issue is how the system behaves under stress, particularly in high-density environments. The DataSafe Noir system is designed to give operators control over that — not just improve performance on paper."

DataSafe Noir energy systems are backed by EnerSys' global installation, commissioning, and service network. The platform is designed for repeatable deployment across hyperscale and colocation environments, where predictability, speed, and operational confidence are critical.