Products
Energy Storage Systems
One-stop ESS — from 50 kW C&I cabinets to 10 MW utility-scale stations. Battery, PCS, BMS, EMS, thermal management and fire protection, integrated and pre-validated.
- 4 product lines
- 15 models
- 50 kW – 10 MW
- 112 kWh – 5 MWh
AIO Containerized BESS
All-in-one containers integrating both the AC and DC sides — straightforward to transport and install, and compact enough to save site area.

500kW / 1.075MWh Air-Cooled Container
Modular, durable air-cooled container, 8,000+ cycles, IP55.
- 500 kW
- 1.075 MWh
- Air-cooled
- IP55

1MW / 1.72MWh Liquid-Cooled Container
Dual 500kW central PCS with 8 liquid-cooled 215kWh clusters.
- 1 MW
- 1.72 MWh
- Liquid-cooled
- 2× 500kW PCS

1MW / 2MWh Liquid-Cooled Container
8 independent 125kW/261kWh modules, fault-tolerant, configurable.
- 1 MW
- 2 MWh
- Liquid-cooled
- 8 modules

1.5MW / 3MWh Liquid-Cooled Container
12 independent 261kWh modules in parallel — a single fault never stops the system.
- 1.5 MW
- 3 MWh
- Liquid-cooled
- 12 modules
Battery Cabinet
AIO Battery Cabinet
All-in-One Battery Cabinet: High-performance PCS enables easy PV retrofits and modular scalability in AC-Coupled System.

125kW / 261kWh Liquid-Cooled Cabinet
40%+ cooling efficiency, 1.35 m² footprint, built-in AI EMS + cloud.
- 125 kW
- 261 kWh
- Liquid-cooled
- 1.35 m²

100kW / 215kWh Air-Cooled Cabinet
Grid-tied + uninterrupted backup, integrated 100kW PCS and STS.
- 100 kW
- 215 kWh
- Air-cooled

418kWh Energy Storage Cabinet
Highest-capacity cabinet, 800V PCS output, high-efficiency liquid cooling.
- 418 kWh
- Liquid-cooled
- IP55
- 8,000+ cycles
Battery Cabinet with Hybrid Inverter
PV input, storage and grid management in one cabinet. Plug-and-play design for fast, hassle-free installation.

50kW / 112kWh Air-Cooled Cabinet
Entry-level PV + storage all-in-one with built-in hybrid inverter.
- 50 kW
- 112 kWh
- Air-cooled
- Hybrid inverter

50kW / 208kWh Liquid-Cooled Cabinet
4-hour long-duration liquid-cooled cabinet with hybrid inverter.
- 50 kW
- 208 kWh
- Liquid-cooled
- 4-hour

261kWh Liquid-Cooled Cabinet with Hybrid Inverter
The 261 kWh liquid-cooled cabinet with the hybrid inverter mounted on the unit.
- 261 kWh
- Liquid-cooled
- Hybrid inverter
DC Block
DC-side liquid-cooled blocks for utility-scale plants — full-domain thermal management and multi-level fire protection, with HV grid connection and grid-support functions.

5.015MWh Liquid-Cooled DC Block
Highest-density utility DC block, LiFePO4 Grade-A, IEC 62477 certified.
- 5.015 MWh
- Liquid-cooled
- VSG / FCR
- IEC 62477

3.44MWh Liquid-Cooled DC Block
Full-domain liquid cooling + multi-level fire protection, grid-support ready.
- 3.44 MWh
- Liquid-cooled
- VSG / FCR
- HV grid
Prefabricated Inverter Substation
Integrated inverter + step-up transformer skids for medium-voltage grid interconnection — compact, with VSG/PQ/VF modes, black-start and LVRT/HVRT ride-through.

3.45MW Prefabricated Inverter Substation
Inverter + booster in one skid, 1500V DC, multi-branch DC design.
- 3.45 MW
- 1500 V DC
- VSG / PQ / VF
- Black-start

5MW Prefabricated Inverter Substation
Highest-power compact MV skid, 4-quadrant control, fast response.
- 5 MW
- 1500 V DC
- VSG / PQ / VF
- Black-start

10MW Converter & Step-up Cabin
KJ-SES4H-10000-MV-EX — 10,000 kVA in a 40-foot cabin, MV output at 20–35 kV.
- 10,000 kVA
- 20–35 kV
- 1040–1500 V DC
- IP55
Find the right system for your project
Tell us your power, capacity and application — our engineers will size the right configuration and quote it.