All-in-One Air Cooling/Liquid Cooling Battery Container System BESS
NEXTG POWER’s Containerized Energy Storage System is a complete, self-contained battery solution for a large-scale energy storage. The batteries and converters, transformer, controls, cooling and auxiliary equipment are pre-assembled in the self-contained unit for ‘plug and play’ use.
NEXTG POWER Energy Storage Systems (ESS), built on state-of-the-art-technology are modular solutions in terms of output power and energy. Variety of operation modes and flexibility to connect to any voltage level, makes NEXTG POWER ESS a preferred solution for complete electricity system value chain starting from the generation. Particularly renewable energy integration, and from Transmission and Distribution (T&D) down to hybrid, island and microgrids. Built-in flexible design permits easy scalability to deliver customized solution from few hundreds of kWh to several hundred MWh. Typical operation modes of NEXTG POWER ESS include but not limited to are: frequency & voltage regulation, peak shaving and intermittent power support including unique power quality modes.
In the micro grid applications, the core of NEXTG POWER ESS is the modern Micro Grid Controller which measures various parameters from solar farm, wind farm, hydropower plant, diesel generators or any other distributed power generator sources. Based on the micro grid loading requirement versus availability of distributed power sources, NEXTG POWER controller optimizes and prioritizes the overall power generation resulting in lowest operational costs and maximum savings of fossil fuel. Other key building blocks of NEXTG POWER ESS systems include NEXTG POWER Power Conversion System (PCS) and energy storage system.NEXTG POWER can provide a complete turnkey NEXTG POWER ESS solution.
Friendly & Flexible
- All-in-one 40 ft container.
- Mobile and modular.
- Standardized design, easy to expand and maintain.
- Independent air duct design, more stable operation.
- Fast deployment and quick setup on-site.
- Reduces your carbon footprint.
Safe and Reliable
- Integrated battery management system and thermal management.
- Improve the fault classification protection mechanism.
- Wide ambient temperature range.
Abundant Configuration
- Diversified selection of equipment capacity.
- Integrated with monitoring system
Turnkey Solution

Modular & Scalable
Our energy storage systems are available in various capacities
40ft Container
Hybrid inverter or power conversion system available
Air cooling or liquid cooling system available
Product Applications
Commercial & Industrial energy storage
Grid Stabilization
Power and Grid System Load Leveling
Renewable energy (Solar and Wind) firming
Remote Off-Grid Power Generation
Ease of Configuration
Containerized ESS solutions can be connected in parallel to increase the total energy capacity available to hundreds of MWh.
NEXTG POWER offers a range of battery solutions from high power or high energy lithium iron phosphate (LFP/LiFePO4).
Our proprietary battery management system (BMS) allows the battery modules to be easily scaled in capacity. Each battery module can be scaled serially to increase the battery voltage to match the power conversion system (PCS) or hybrid inverter. Multiple battery modules each can be easily installed in parallel to increase the energy capacity.
As each battery module is fully isolated, the ESS can remain operational while respective battery modules are shut down for maintenance. In the case of critical operations, the system can remain operating while replacement of parts can be carried out. Since the PCS, battery modules and controller system are housed in separate enclosures, the ESS can be easily configured and deployed.
| Model Number | CESS40A15003870A | CESS40A34505505L |
|---|---|---|
| DC Battery | ||
| Nominal Voltage(V) | 768 | 1228.8 |
| Rated Capacity(Ah) | 5040 | 4480 |
| Energy(KWh) | 3870.72 | 5505.02 |
| AC | ||
| Rated power(KW) | 1500 | 3450 |
| Rated voltage & frequency | 400/690V,50/60Hz | 400/690V,50/60Hz |
| THD | <3% | <3% |
| Power factor | >0.99 | >0.99 |
| Adjustable power factor | -1 leading~1 lagging | -1 leading~1 lagging |
| General data | ||
| Operation temperature | – 30℃~ 55℃ (>45℃ derating) | – 30℃~ 55℃ (>45℃ derating) |
| Relative humidity | 0 ~95%(non-condensing) | 0 ~95%(non-condensing) |
| IP raito | IP54 | IP54 |
| Altitude(m) | 5,000m (>3,000 Derating) | 5,000m (>3,000 Derating) |
| Cooling | Air cooling | Liquid cooling |
| Dimension(WxDxH)mm | 12192*2438*2896 | 12192*2438*2896 |
| Weight(T) | ~45T | ~55T |
| Display and communication | ||
| Display | LCD screen | LCD screen |
| Communication protocol | Modbus | Modbus |
| Communication interface | RS485/CAN/Ethernet/Dry connect | RS485/CAN/Ethernet/Dry connect |




