Professional battery storage
RA-100 BESS
Modular cabinet system with 100 kWh net capacity and LG Chem cells — for businesses, industry and energy projects.
Three power series ULTRA / PLUS / ONE (100 / 50 / 25 kW) in the same cabinet. Scale to 2+ MWh, NZIA ready, built in the Czech Republic from EU components.
- Built in the Czech Republic
- EU components · NZIA ready
- LG Chem NMC Automotive · IP55
ULTRA · PLUS · ONE
100 kWh net · scale to 2+ MWh
10-year warranty
Extended system warranty
LG Chem NMC
Automotive Tier 1 cells
100 kWh – 2+ MWh
Scalable capacity
NZIA ready
CZ-made · EU components
Why RA-100 BESS
Built for sites that need power, scalability and operational reliability — from peak shaving to backup and EV fleet charging.
Safety and performance for modern sites
At the core are industrial LG Chem Automotive Tier 1 NMC cells. The BMS monitors voltage, temperature and SoH of every cell individually — in real time, with data via API or web interface.
Robust construction, multi-stage protection and remote oversight deliver maximum safety even under high power operation.
Modular cabinet system
One compact cabinet 225 × 60 × 80 cm delivers 112.5 kWh gross / 100 kWh net. Scale beyond 2 MWh by adding racks without redesigning the system.
Three configurations: ULTRA liquid cooling 100 kW/1C, PLUS active 50 kW/0.5C, ONE passive 25 kW/0.25C — same capacity, different power.
European quality and ROI
Storage designed and built in the Czech Republic from EU components — no customs risk, delivery certainty. Local service and documentation fully aligned with EU legislation.
NZIA-ready product eligible for subsidy programmes. The expert configurator also includes an ROI dashboard with payback prediction.
Three power series
The same 100 kWh net capacity across all series — what differs is rated power, C-rate and cooling type. Choose by load profile and duty cycle.
Racks in installation (1–24)
Voltage
660 V
Power
100 kW
Capacity
100 kWh
Weight
750 kg
RA-100 BESS — technical specification
Full parameters for ULTRA / PLUS / ONE. A modular platform for long-term high-power duty in demanding conditions.
| RA-100 ULTRA | RA-100 PLUS | RA-100 ONE | |
|---|---|---|---|
| Cell manufacturer | LG Chem | ||
| Capacity (gross) | 112.5 kWh | ||
| Usable capacity (net) | 100 kWh | ||
| Voltage | 660 V | ||
| Voltage range (0–100 % SoC) | 576 V – 747 V | ||
| Rated charge / discharge power | 100 kW / 1C | 50 kW / 0.5C | 25 kW / 0.25C |
| Weight | 750 kg | 750 kg | 700 kg |
| Cabinet dimensions (H × W × D) | 225 × 60 × 80 cm | ||
| Temperature range | −10 to +35 °C, non-condensing humidity | ||
| Ingress protection | IP55 — indoor and outdoor | ||
| Cooling | Liquid | Active | Passive |
| Inverter connection | CAN / RS485 | ||
| Scaling | To 2+ MWh by adding racks | ||
| Compatible inverters | Fronius, GoodWe, Deye, Solinteg, Wattsonic | ||
| Warranty | 10 years on the battery | ||
RA-100 is designed as a modular platform with an integrated BMS, multi-stage protection and remote oversight for maximum operational reliability.
Safety and BMS features
Cell-level monitoring and multi-stage protection — the foundation of long-term reliability in commercial operation.
Cell-level monitoring
Voltage, temperature and SoH of every cell in real time — data via API or web.
Temperature protection
Liquid, active or passive cooling by series — operation −10 to +35 °C.
Multi-stage protection
Electrical limit protection, power stability and safe disconnection at limits.
SoC / SoH monitoring
State of charge and cell health for service and operational decisions.
CAN / RS485
Reliable connection to hybrid inverters and building control systems.
Remote management
Remote oversight for service, alarms and multi-rack operations.
Autonomous fire system
Integrated fire protection for high-power commercial installations.
Rapid Shutdown
Fast, safe system disconnection for service and emergency situations.
Where RA-100 BESS excels
Business & industry
- · Peak shaving and reduced reserved capacity
- · Maximise PV use and spot-market arbitrage
- · Backup power for critical equipment
- · EV fleet charging with controlled power
Energy & larger projects
- · Scale capacity to 2+ MWh without changing platform
- · NZIA ready and eligible for subsidy programmes
- · Integration with recognised hybrid inverters
- · Local service and documentation
We will size the right RA-100 BESS series for your site — in the expert configurator including the ROI dashboard.
For PV and hybrid integration we use recognised inverter brands. RA-100 BESS is compatible with Fronius, GoodWe, Deye, Solinteg and Wattsonic.
