IN Brief:
- Rimac UNI battery modules will be integrated with ECOBLOX modular data centre infrastructure.
- Battery telemetry will feed a unified data centre infrastructure management system.
- A demonstration at the Rimac Campus is planned for November 2026.
Rimac Technology and ECOBLOX have signed a joint development agreement for modular data centre infrastructure combining battery storage, power electronics, backup power, cooling and high-density computing equipment.
The companies plan a demonstration installation at the Rimac Campus near Zagreb in November 2026. The development combines battery engineering originating in automotive applications with factory-engineered data centre systems.
The agreement establishes a technical development programme. It does not establish that a complete commercial installation is operating, and neither party has published a confirmed project power rating or backup duration for the demonstrator.
Rimac will contribute its UNI battery modules and associated battery management capabilities. ECOBLOX will integrate the storage equipment with its modular computing infrastructure and management software.
The companies are targeting high-performance computing and artificial intelligence applications where electrical loads, cooling requirements and space constraints are growing. Higher power density places demands on power distribution and conversion at the equipment and rack level.
Rimac and ECOBLOX identify 400VDC and 800VDC distribution architectures as part of the intended engineering environment. Higher distribution voltage can reduce current for a given power level but requires appropriate insulation, fault protection and equipment ratings.
In conventional data centre power engineering, several conversion stages may exist between the supply network and computing hardware. Transformers, rectifiers, battery interfaces and point-of-load converters each introduce technical constraints and electrical losses.
The joint modular design aims to coordinate those components within an integrated factory-engineered enclosure. The equipment still needs suitable external electricity supply and commissioning when installed at its operating location.
Rimac’s UNI modules were engineered for demanding battery applications and incorporate management and thermal provisions. Their use in computing infrastructure creates a new application of that technology, not a claim that the underlying battery chemistry has changed.
Battery management equipment monitors operation and helps keep individual modules within the permitted electrical and thermal range. The information may include charge state, temperature and other operational parameters needed for supervision.
Telemetry from the Rimac battery system is intended to feed ECOBLOX’s data centre infrastructure management software. The combined monitoring environment can provide equipment status, alarms and information relevant to maintenance and performance analysis.
Such supervisory integration does not replace dedicated electrical protection. Safety functions must operate within the required time limits even when external software or communications infrastructure is unavailable.
Battery storage can support uninterruptible power supply functions during external power disturbances. The duration of support depends on energy capacity, connected load, equipment losses and how much charge is reserved for continuity.
A dense battery module can provide substantial energy in a relatively compact form, but volume is only one engineering consideration. Thermal management, maintainability, fault isolation and service access affect the suitability of storage equipment for critical infrastructure.
Computing workloads can vary quickly, creating changing electrical power demands. Power converters and UPS controls must regulate output and respond to transients without exposing servers to unacceptable voltage disturbances.
Cooling design is equally important. Computing hardware, converters and batteries all generate heat, and their requirements may differ in temperature range, cooling medium and response to rapidly changing loads.
ECOBLOX offers both air-cooled and liquid-cooled modular installations. The exact cooling specification for the initial joint demonstrator has not been established, preventing a verified assessment of the integrated thermal performance.
Factory-engineered modular construction can move some assembly and testing work into controlled production environments. The final installation must still undergo site integration, electrical connection and performance validation before operation.
The companies identify a deployment period of six to eight months for elements of ECOBLOX’s wider modular offering. That commercial estimate is not an independently established completion time for the new Rimac joint design.
Battery and computing equipment also have different service and replacement cycles. A modular arrangement must allow maintenance without exposing personnel or neighbouring equipment to unacceptable hazards. The design of disconnects, access routes and monitoring functions can materially affect serviceability over the operating life of the installation.
Neither partner has disclosed a measured system-level electrical efficiency figure. Comparing the joint design with another data centre architecture will require measured conversion losses across the full power pathway, specified load points and the associated cooling demand. A compact enclosure cannot be treated as evidence of lower total energy consumption on its own.
The November demonstration is intended to provide a first visible engineering milestone for the Rimac and ECOBLOX joint design. The partners will still need to establish the chosen electrical ratings, storage duration, thermal integration and controls through testing before offering a substantiated installed-system performance claim. The agreement itself does not establish a commissioned modular data centre or a verified efficiency improvement.
