Manufacturer · China
CRRC Zhuzhou Institute
BNEF Tier 1Wholly owned subsidiary of CRRC Corporation (rail-transit and clean-energy equipment, est. 1959) whose energy-storage unit ranked among the top-5 global ESS integrators by 2025 shipments (InfoLink). Supplies liquid-cooled 3.X/5.X/6.X DC containers, string AC containers, MV cascade systems and C&I cabinets, mainly in China with growing EU/overseas projects.
- Country
- China
- Headquarters
- Zhuzhou, Hunan
- Founded
- 1959
- Official website
- crrcgc.cc
- Segments
- utility-scale · commercial & industrial
- Makes its own cells
- no
- BNEF Tier 1
- BNEF Tier 1 (bankability list)
Model
8
8 models
Classes represented
5 MWh 20 ft containers6 MWh+ 20 ft containersAC blocks (PCS integrated)C&I cabinetsLiquid-cooled utility systemsNon-LFP chemistry
CRRC Zhuzhou Institute models in the catalog
Sorted by maximum published energy. Click a model for all variants, the full specification and the list of fields CRRC Zhuzhou Institute does not publish.
| Model | Segment | Form factor | Max energy | Max power | Cooling | Chemistry | Cell Ah | AC/DC | Status | Datasheet |
|---|---|---|---|---|---|---|---|---|---|---|
| High Voltage Cascade System | utility-scale | modular block | 60 MWh | 40 MW | liquid-cooled | not published | not published | AC | shipping | |
| 6.X Liquid Cooling Energy Storage System | utility-scale | 20 ft container | 6.901 MWh | not published | liquid-cooled | LFP | 587 | DC | shipping | |
| 5.X Centralized Liquid Cooling Energy Storage System | utility-scale | 20 ft container | 5.016 MWh | 5 MW | liquid-cooled | LFP | 314 | DC | shipping | |
| 5.X String-type Liquid Cooling Energy Storage System | utility-scale | 20 ft container | 5.016 MWh | 2.58 MW | liquid-cooled | LFP | 314 | AC | shipping | |
| 3.X Liquid Cooling Energy Storage System | utility-scale | 20 ft container | 3.727 MWh | 3.45 MW | liquid-cooled | LFP | 280 | DC | legacy | |
| Outdoor Integrated Energy Storage Cabinet (overseas version) | commercial & industrial | cabinet | 418 kWh | 215 kW | liquid-cooled | LFP | 314 | AC | shipping | |
| Smart ESS Cabinet-100/215 | commercial & industrial | cabinet | 215 kWh | 100 kW | air-cooled | LFP | not published | AC | shipping | |
| Smart PV ESS Cabinet-50/100 | commercial & industrial | cabinet | 100.35 kWh | 50 kW | air-cooled | LFP | not published | AC | shipping |
About CRRC Zhuzhou Institute
CRRC Zhuzhou Institute (中车株洲所) is the power-electronics and clean-energy arm of state-owned CRRC Corporation, headquartered in Zhuzhou, Hunan. It integrates BESS around purchased LFP cells (supplier not named on the site) together with in-house PCS, transformers and MV turnkey stations. InfoLink ranks it fourth among global ESS integrators for 2025 shipments, and BNEF has listed it as a Tier 1 energy-storage manufacturer since Q1 2024. The English site publishes a full line: 6.X liquid-cooled DC containers (587/648 Ah cells, 3.125–6.901 MWh in 10-ft and 20-ft boxes, launched January 2026), 5.X centralized (5.016 MWh, 314 Ah) paired with 1250 kW×4 MV stations, 5.X string-type AC containers with 215 kW string PCS, the older 3.X 280 Ah platform, a transformerless High Voltage Cascade system for 6–35 kV, plus C&I cabinets (233/261/418 kWh liquid-cooled, 215 kWh and 100 kWh air-cooled PV-storage cabinets). All liquid-cooled systems are IP55, −30 °C rated and carry IEC 62619/62933-5-2 and UL 9540A; US variants add UL 1973/UL 9540. Overseas projects include the 200 MWh Bohot BESS in Bulgaria (2026). Not disclosed: cycle life, warranty, kW ratings for 6.X, cell supplier; datasheet PDFs are image-only scans and no press kit or image licence exists.
Photo policy
CRRC Zhuzhou Institute publishes no image licence or press kit, so model cards show a schematic illustration instead of a manufacturer photo. Photos will be added only with written permission.
No press/media kit on crrcgc.cc/zsen; footer states 'Copyright © 2025 CRRC All Rights Reserved' with no image-use terms.
Sources
Manufacturer documents used for this record. Model-level sources are listed on each model card.
- CRRC Zhuzhou Institute — Energy Storage System products — https://www.crrcgc.cc/zsen/products_services/main_products/energy_system/energy_storage_system/index.html
- CRRC Zhuzhou Institute — Corporate Overview — https://www.crrcgc.cc/zsen/about_us/corporate_overview/index.html
- CRRC Zhuzhou Institute — BNEF Tier 1 Q4 2025 — https://www.crrcgc.cc/zsen/2025-11/06/article_2025110611091472961.html
- InfoLink — 2025 global ESS shipment rankings — https://www.infolink-group.com/energy-article/energy-storage-topic-2025-global-bess-integrator-shipments-ranking
- PR Newswire — 6.X at The smarter E Europe 2026 — https://www.prnewswire.com/news-releases/crrc-zhuzhou-institute-to-showcase-6x-liquid-cooled-energy-storage-system-at-the-smarter-e-europe-2026-302794064.html