NEXISTORAGE R18
NEXISTORAGE R18 is a modular battery energy storage system (BESS) rack developed by VONSCH spol. s r.o. The rack contains 18 LV battery modules connected in series. Depending on the selected variant – LV01 (NMC, 117.8 kWh), LV02 (NMC, 133.6 kWh) or LV04 (LFP, 92.2 kWh) – the energy capacity, DC voltage and system lifetime are adapted accordingly.
Control is provided by VONSCH's hierarchical BMS architecture – BMS12C (slave) at the module level, BMSM3V3 (master) at the string level, and centralised control via NSBC (NEXISTORAGE Battery Controller – PLC + HMI touchscreen). For grid integration, the rack connects to the NEXICONTROL 400 200 GSE inverter, forming a complete BESS with up to 200 kW per string.
The modular ecosystem allows scaling from a single rack through multi-rack configurations to containerised solutions for industrial and commercial applications. The LV04 LFP variant features significantly longer cycle life and improved thermal stability – ideal for applications with daily cycling and FCR/DFS ancillary service requirements.
Features
- 18 series-connected LV battery modules, IP65, precharge circuit
- hierarchical BMS: BMS12C (slave per module) + BMSM3V3 (string master) + NSBC controller
- DC pass-through IN/OUT connection for parallel multi-rack configurations
- NSBC – PLC controller with Siemens SIMATIC HMI touchscreen display
- compatible with NEXICONTROL (ECS) inverters for grid-connected BESS integration
- three module variants: LV01 NMC, LV02 NMC, LV04 LFP
- certifications: UN38.3, EMC 2014/30/EU
Communication
- RS485 Modbus RTU – communication between BMS modules and NSBC
- Modbus TCP/IP – remote monitoring and control via EMS/SCADA
- Ethernet, USB – interfaces for configuration and diagnostics
- SunSpec compatibility – integration with EMS and trading systems
Module variant comparison
| Chemistry / cell | LV01 (NMC) | LV02 (NMC) | LV04 (LFP) |
|---|---|---|---|
| Chemistry / cell | NMC · CALB L221N147A | NMC · CALB L221N169A | LFP · REPT CB58-132.5Ah |
| Module capacity (Ah · kWh · V) | 147 Ah · 6,54 kWh · 44,5 V | 169 Ah · 7,42 kWh · 44,0 V | 132,5 Ah · 5,12 kWh · 38,4 V |
| Rack R18 energy (18 modules) | 117,8 kWh | 133,6 kWh | 92,2 kWh |
| DC voltage nom. / range | 801 V · 605 – 929 V | 792 V · 605 – 940 V | 691 V · 540 – 788 V |
| Max. charge current / power | 147 A · ~118 kW | 169 A · ~134 kW | 132,5 A · ~92 kW |
| Module weight (18×) | 549 kg (30,5 kg/ks) | 598,7 kg (33,26 kg/ks) | ~562 kg (~31,2 kg/ks) |
| Module dimensions (L × W × H) | 589,5 × 225 × 108 mm | 589,5 × 225 × 115 mm | 589,5 × 225 × 118 mm |
General technical data – variant LV01 NMC
| Parameter | NEXISTORAGE R18 / LV01 NMC |
|---|---|
| Modules per rack | 18 |
| Nominal energy | 117,8 kWh |
| Nominal DC voltage | 801 VDC |
| DC voltage range | 605 – 929 VDC |
| Max. current charge / discharge | 147 A |
| Protection class | IP 65 |
| BMS slave (module) | BMS12C · meranie článkov, balancing, daisy chain |
| BMS master (string) | BMSM3V3 · riadenie stringu, stykače, precharge |
| Battery Controller | NSBC · PLC + Siemens SIMATIC HMI + RS485 / Modbus TCP |
| Compatible inverter | NEXICONTROL 400 200 GSE · 200 kW · η 99 % |
| Ambient temperature (operation) | -20 – +55 °C |
| Certifications | UN38.3 · EMC 2014/30/EU |