1MW 2MWh Liquid-Cooled
Container Energy Storage System
The BSLBATT ESS-GRID SINOX2 is a 20-foot all-in-one container energy storage system rated at 1MW/2MWh. It integrates 314Ah LFP battery clusters, bi-directional PCS, EMS, liquid cooling, and fire suppression into a single deployable unit. The system supports both grid-tied peak shaving and off-grid backup, with optional 500kW PV input for solar self-consumption. Designed for commercial facilities, industrial parks, microgrids, and distributed energy projects.
MW-Scale Storage. Single-Unit Deployment.
1MW bi-directional power and 2,089 kWh LFP energy in one 20-foot container. Battery, PCS, EMS, liquid cooling, and fire suppression factory-wired and tested before shipment.
Liquid cooling across all 8 battery clusters. Separate air cooling for the electrical compartment. Aerosol fire suppression with gas detection at container level.
Grid-tied peak shaving. Off-grid critical load backup. Direct 500kW PV input with 10 MPPT strings. Diesel generator hybrid mode for remote sites.
500kW/1MWh and 1MW/2MWh configurations on the same platform. Built to order in 25-30 days.
All-in-One Design
Battery, PCS, EMS, and safety systems in one 20ft container. Pre-wired at the factory for plug-and-play deployment.
Smart Grid Ready
RS485, Ethernet, and Modbus RTU/TCP communication. Full EMS control for energy flow optimization and remote monitoring.
Optional PV Input
Up to 500kW photovoltaic input with 10 MPPT strings (250V-708V range). Enables solar self-consumption without external charge controllers.
Advanced Safety Protection
Integrated fire suppression with combustible gas detection, smoke detection, and temperature monitoring. Aerosol extinguishing with water spray backup.
Liquid-Cooled Battery Compartment
Maintains cell temperature uniformity across all 8 clusters. Electrical compartment uses separate air cooling.
On-Grid and Off-Grid Operation
Supports grid-tied peak shaving and valley filling. Switches to off-grid mode for critical load backup during outages.
System Architecture
The ESS-GRID SINOX2 operates as a central energy hub connecting multiple power sources and loads. When connected to the utility grid, the system separates general loads from critical loads. If the grid fails, battery power keeps critical loads running without interruption.
The system connects to external PV arrays through its built-in DC input, supporting up to 500kW of solar generation. An EMS coordinates charging from PV, grid, or generator sources based on time-of-use rates, load demand, and battery state of charge.
For sites with backup generators, the SINOX2 can maintain operation after switching to off-grid mode. The generator charges the battery while the system continues serving the load.
Battery Configuration
Each SINOX2 houses 8 battery clusters with 314Ah LFP prismatic cells in an 8P x 52S x 5S configuration. Total rated energy is 2,089 kWh (261.2 kWh per cluster).
The battery clusters operate at DC 832V (range: 728V-923V) and connect through individual high-voltage boxes. Each high-voltage box includes an isolating circuit breaker, MSD switch, HMI screen interface, and communication ports for PCS and inter-cluster coordination.
The liquid cooling system uses cold plates integrated into each battery pack chassis, with dedicated inlet and outlet ports per pack. This maintains consistent cell temperatures across all clusters during both charging and discharging.
PCS and Electrical
The SINOX2 is available in two power configurations. The standard 1MW configuration uses 8 parallel PCS modules (180A each, 1,440A total) with 1.1MW overload capability. A 500kW configuration with 4 PCS modules is also available.
AC output is 400V three-phase at 50Hz or 60Hz. The power factor range covers -1 to +1 for full four-quadrant operation, and current THD stays below 3%.
An HMI control panel on the converter cabinet provides direct access to system parameters, operating mode selection, and module enable/disable controls. The PCS supports both on-grid peak shaving and off-grid backup modes.
Fire Suppression System
The SINOX2 fire protection system uses a "detect early, suppress early" approach at both cabin and container level.
Combustible gas detectors, smoke detectors, and temperature sensors are installed on the ceiling of each storage compartment. These sensors feed into an integrated algorithm that evaluates gas concentration, temperature, and smoke levels simultaneously.
If thermal runaway is detected, the system activates aerosol fire extinguishing devices for total-flooding suppression. If aerosol suppression is insufficient, a secondary water spray system provides backup cooling and fire containment.
The exhaust ventilation system interlocks with the gas detectors to address explosion risk. An EP203 fire alarm control panel manages the entire sequence with time-stamped event logging and manual override capability.
Where a 1MW/2MWh Container BESS Solves Real Problems
Beyond-Cabinet Scale
Cabinet-based C&I systems work at 200-500 kWh. Once a project crosses 1 MWh, the number of separate cabinets, cable runs, DC combiners, and fire enclosures increases significantly, along with site engineering complexity. The SINOX2 delivers 2 MWh in one factory-wired unit. Battery, PCS, EMS, cooling, and fire suppression arrive integrated and tested. On-site work drops to AC connection, comms hookup, and a concrete pad.
Grid Instability With Stranded Solar
In regions with frequent grid interruptions and high daytime solar availability, two problems compound: outages disrupt operations during peak hours, and PV generation goes unused after sunset. The SINOX2 addresses both within a single system. The 500kW PV input connects solar directly to the container without an external charge controller. The EMS stores daytime generation and dispatches it during peak rates or outages, with automatic critical-load isolation when the grid drops.
Diesel Transition
Mining sites, island grids, and off-grid construction operations face rising fuel logistics costs and tightening carbon reporting requirements. A full generator replacement is rarely practical in one step. The SINOX2 runs in hybrid mode alongside existing generators, absorbing baseload and letting the genset cover peaks only. Fuel consumption drops, runtime hours drop, and the transition happens without operational downtime.
Multi-Site Standardization
Distributors and EPCs managing rollouts across multiple sites need a repeatable, factory-validated unit. The SINOX2 is a standardized 20ft container with two power configurations (500kW or 1MW) on the same platform. Same dimensions, same cooling, same fire system, same commissioning procedure across every deployment site.
Rapid Deployment
Traditional BESS projects take months of system design, multi-vendor procurement, and on-site integration. The SINOX2 compresses this timeline. Built to order in 25-30 days, shipped as a single unit on a standard flatbed, and commissioned on site with only foundation, AC, and comms connections required. For projects with tight schedules or limited local engineering capacity, the container format eliminates the integration phase entirely.
Container BESS vs. Outdoor Cabinet: When Does Each Make Sense?
BSLBATT offers both containerized and cabinet-format C&I energy storage. The right choice depends on project scale, site constraints, and deployment speed.
| Model | ESS-GRID SINOX2 (Container) | LC250-522 (Cabinet) | ESS-GRID C241 (Cabinet) |
|---|---|---|---|
| Energy | 2,089 kWh | 522 kWh | 241 kWh |
| Power | 1 MW | 250 kW | 125 kW |
| Cooling | Liquid (battery) + air (electrical) | Liquid | Air |
| On/off-grid | Both | Grid-tied only | Both |
| PV Input | Optional 500 kW | No | No |
| Footprint | 6.1 × 2.4 m (single unit) | 0.93 × 1.30 m (per cabinet) | Per cabinet |
| Best For | 1+ MWh projects, microgrids, turnkey deployment | 250–500 kWh C&I, modular expansion | Sub-250 kWh C&I |
Cabinet systems like the LC250-522 and ESS-GRID C241 are modular: you can start with one unit and add more as demand grows. Up to 4 LC250 units can parallel to reach ~2 MWh, but each unit requires separate site integration.
The SINOX2 delivers 2 MWh in a single pre-integrated unit. All wiring between battery clusters, PCS, and EMS is completed at the factory. On-site work is limited to AC and communication connections. For projects that need 1+ MWh in one shot, the container format reduces site engineering time and installation cost.
Flexible Configuration From a Vertically Integrated Manufacturer
BSLBATT designs and manufactures the ESS-GRID SINOX2 at its Huizhou facility, covering cell module assembly, BMS development, system integration, and container-level testing under one roof.
The SINOX2 platform supports two standard configurations in the same 20ft container shell: 500kW/1MWh (4 PCS modules) and 1MW/2MWh (8 PCS modules). Battery cluster count, PCS power rating, and PV input can be adjusted based on project requirements.
Both configurations share identical container dimensions, liquid cooling architecture, fire suppression systems, and communication interfaces. This simplifies system design for EPCs and integrators managing multiple project scales across different regions.
Communication and Integration
The ESS-GRID SINOX2 supports the following communication interfaces:
RS485 · Ethernet · Modbus RTU · Modbus TCP
The EMS provides centralized monitoring and control of all battery clusters, PCS modules, and thermal management systems. Data points include cell voltage, temperature, SOC, power output, and fault status.
The system can integrate with third-party SCADA platforms, cloud monitoring services, and site-level energy management systems through standard Modbus registers.
ESS-GRID SINOX2 Container Energy Storage System FAQ
Q: What is included in the ESS-GRID SINOX2 container?
The BSLBATT ESS-GRID SINOX2 is an all-in-one container energy storage system. It includes 8 LFP battery clusters (2,089 kWh total), a bi-directional PCS (1MW rated), an EMS, a liquid cooling system for the battery compartment, air cooling for the electrical compartment, and a fire suppression system with gas detection, smoke detection, and aerosol extinguishing. All internal wiring between components is completed at the factory.
Q: Can the SINOX2 work off-grid?
Yes. The BSLBATT SINOX2 supports both grid-tied and off-grid operation. In grid-tied mode, it performs peak shaving and valley filling. During a grid outage, the system switches to off-grid mode to maintain power to critical loads. It can also pair with a diesel generator for extended off-grid runtime. Note: the 1MW configuration uses optional external switching for on/off-grid transition.
Q: Does the SINOX2 support direct PV connection?
Yes. The BSLBATT SINOX2 has an optional PV input rated at 500kW with 10 MPPT strings. The PV open-circuit voltage range is 250V to 708V in boost mode. This allows direct solar connection without a separate charge controller or DC coupling cabinet.
Q: What is the difference between the 500kW and 1MW configurations?
Both configurations use the same 20ft container, battery clusters, cooling system, and safety equipment. The BSLBATT SINOX2 500kW version uses 4 PCS modules (720A total), while the 1MW version uses 8 PCS modules (1,440A total). The 500kW configuration includes standard on/off-grid switching and isolation transformer. The 1MW configuration offers these as optional external additions.
Q: What communication protocols does the SINOX2 support?
The BSLBATT SINOX2 supports RS485, Ethernet, Modbus RTU, and Modbus TCP. These allow integration with third-party SCADA systems, cloud monitoring platforms, and site-level energy management systems.
Q: What fire protection does the SINOX2 use?
The BSLBATT SINOX2 uses a multi-layer fire protection approach. Combustible gas detectors, smoke detectors, and temperature sensors continuously monitor the battery compartment. If thermal runaway is detected, aerosol fire extinguishing agents deploy automatically for total-flooding suppression. A secondary water-based spray system provides backup. The exhaust ventilation system interlocks with gas detectors to manage explosion risk.
Q: What are the site requirements for installation?
The BSLBATT SINOX2 requires an outdoor installation on a level concrete foundation with sufficient load-bearing capacity for approximately 16.5 tons. The foundation should be at least 300mm above ground level. Installation must comply with local fire distance regulations, including NFPA 855 standards. The system needs clearance for cable access, ventilation, and maintenance access on all sides.
| Parameter | Value |
|---|---|
| Battery Side Parameters | |
| Model | ESS-GRID SINOX2 |
| Cell Type | 314Ah / 3.2V (LFP) |
| Battery Cluster Rated Voltage | DC 832V |
| Battery Side Rated Capacity | 314Ah × 8 |
| Series/Parallel Configuration | 8P × 52S × 5S |
| Battery Side Rated Energy | 2,089 kWh (261.2 kWh × 8) |
| Battery Operating Voltage Range | DC 728.0V – 923.0V |
| Rated Charge/Discharge Current | 157A × 8 |
| AC Side Parameters (PCS) | |
| Rated AC Voltage | AC 400V, 3W+PE / 3W+N+PE |
| Rated AC Frequency | 50Hz / 60Hz |
| Rated / Max. AC Power | 500kW / 550kW (500kW Configuration); 1MW / 1.1MW (1MW Configuration) |
| Rated AC Current | 720A (180A × 4) / 1,440A (180A × 8) |
| Power Factor | -1 ~ +1 |
| THDi | <3% |
| On-Grid/Off-Grid Switching | 500kW: Standard / 1MW: Optional external |
| Isolation Transformer | 500kW: Standard / 1MW: Optional external |
| Operating Mode | Grid-tied peak shaving & valley filling / Off-grid backup |
| Protection | Over-temperature, low-temperature charging, overcurrent, short-circuit, overvoltage, undervoltage, DC bus protection |
| PV Side Parameters (Optional) | |
| PV Open-Circuit Voltage Range | 250V – 708V (Boost mode) |
| PV Full-Load Voltage Range | 345V – 550V |
| PV Input Power | 500 kW |
| Max. PV Current | 160A × 10 |
| Number of MPPT Strings | 10 |
| General Parameters | |
| Operating Temperature | -20°C ~ +55°C |
| Operating Humidity | 10% – 90% RH (non-condensing) |
| Altitude | 3,000 m |
| Installation Method | Floor standing (outdoor only) |
| Cooling Method | Battery: liquid cooling / Electrical: air cooling |
| Fire Protection | Gas extinguishing / Water-based (optional) |
| Communication | RS485, Ethernet, Modbus RTU/TCP |
| Protection Rating | Battery: IP55 / Electrical: IP54 |
| Dimensions (W × D × H) | 6,058 × 2,438 × 2,896 mm |
| Weight | Approx. 16.5 tons |
