Off-Grid BESS
What is BESS
Battery Energy Storage System?
A Battery Energy Storage System (BESS) stores energy in batteries and releases it when needed, playing a key role in managing power supply and demand. It captures energy from various sources, storing it for later use. Key components include battery cells, a battery management system (BMS) for safety, an inverter to convert energy to usable forms, and an Energy Management System (EMS) to control flow and optimize storage. BESS is essential for stabilizing the power grid and in transitioning to cleaner energy by supporting a reliable, flexible, and efficient power grid.
Key Benefits.
High Performance & Reliability
With <10 ms response time, 98% efficiency, and 300% surge capacity, the Ohms Box delivers stable power in the most demanding conditions. Designed for black starts and sustained overloads, it performs when others fail—keeping systems running no matter the load.
Pre-Configured &
Pre-Assembled
Save time and costs with a plug-and-play setup. Each Ohms Box arrives fully equipped with batteries, inverters, HVAC, ATS, PLC, and industrial-grade communication—ready to connect, operate, and integrate in minutes, not days.
Built for Harsh Environments
Designed for extreme heat, dust, and humidity, the Ohms Box performs reliably in tough conditions. With rugged construction and field-proven durability, it’s ideal for deployment in Africa where resilience, due to a high-stress environment, is critical.
Seamless Integration PV / Grid / Genset
AC- or DC-coupled, the Ohms Box integrates with solar, grid, and gensets—operating alone or in parallel. Flexible and modular, it fits any hybrid setup and supports smart energy distribution with minimal setup time and no additional integration hardware.
Smart Auto-Switching & Built-In ATS
The Ohms box automatically switches between grid, solar, or generator in under 10 milliseconds. This fast, intelligent switching ensures uninterrupted power, reduces fuel consumption, and maximizes uptime—delivering seamless energy flow without manual input, even during outages or transitions between power sources.
Integrated Genset Control
The Ohms box includes onboard generator control, automating start/stop sequences, optimizing fuel usage, and extending genset lifespan. No external controller is required—just plug in and go. It simplifies hybrid systems while ensuring reliable, efficient generator operation in off-grid, backup, or peak-load scenarios.
Hardcore HVAC System
The Ohms box is equipped with an industrial-grade HVAC system designed for extreme heat, dust, and humidity. It ensures stable internal temperatures, protects sensitive electronics, and requires minimal servicing—delivering long-term performance and system reliability in the world’s harshest and most remote environments.
DC/DC PV Converter Option
Connect solar directly to storage with the optional DC/DC converter. Operating at 99.5% efficiency and fanlessly cooled, it eliminates the need for external inverters. This low-maintenance solution is ideal for streamlined hybrid systems requiring quiet, efficient, and reliable direct DC integration.
Integrated Fire Safety
A built-in FirePro aerosol suppression unit activates instantly during thermal events. This self-contained system protects critical components and minimizes fire-related damage and downtime. With no need for external cylinders or plumbing, it delivers compact, compliant fire safety in even the most remote installations.
High-Volt Battery Isolator
Each 76.8 VDC battery module includes its own isolator, enabling safe handling, installation, and maintenance. There’s no need to shut down the full system—technicians can isolate and service individual packs, improving uptime, increasing safety, and simplifying field work on high-voltage energy systems.
Off-Grid Controller
The Ohms Box comes with a built-in controller that monitors, automates, and optimizes power flow. With real-time data, visualization tools, and remote access, it reduces operational costs, improves efficiency, and extends system lifespan—making complex energy control simple and intuitive.
LLM Enabled AI Integration
The Ohms Box is the first BESS to integrate Large Language Model (LLM) technology. Interact with your system using plain language—ask for diagnostics, request reports, or troubleshoot in real time. Onsite or remote, intelligent control and insight are just a question away.
Technical Specifications.
PV Integration
PV can be connected via AC or DC input, simplifying system design and reducing costs for the end user.
Grid Integration, with NH1 fuse and Automatic Contactor
Grid can be connected via built in NH1 Fuse and Contactor, enabling both grid-connected and off-grid modes while supporting advanced grid services.
GenSet Integration, with NH1 fuse and Automatic Contactor
One or more gensets can be integrated directly in the cabinet via built in NH1 Fuse and Contactor as backup or to enable smart fuel-saving strategies in hybrid systems.
Automatic Transfer Switch backup option in case of BESS failure
Automatically switches the power source for connected loads between the grid, BESS, and GenSet, ensuring an uninterrupted power supply.
Micro-grid Controller
Built-in micro-grid controller manages PV, BESS, grid, and genset operations, ensuring reliable, optimized, and fully automated system performance.
Solutions.
