BESS comparison
CRRC Zhuzhou Institute 6.X Liquid Cooling Energy Storage System vs Pylontech Container L5000-BAT
Both columns come from what CRRC Zhuzhou Institute and Pylontech publish. Fields either maker does not publish are marked «not published»; we do not estimate or rank.
CRRC Zhuzhou Institute
6.X Liquid Cooling Energy Storage System
6.901 MWh
20 ft containerliquid-cooledLFPshipping
Pylontech
Container L5000-BAT
5.016 MWh
20 ft containerliquid-cooledLFPshipping
Specifications side by side
| Field | CRRC Zhuzhou Institute 6.X Liquid Cooling Energy Storage System | Pylontech Container L5000-BAT |
|---|---|---|
| Max energy per enclosure | 6.901 MWh | 5.016 MWh |
| Max power per enclosure | not published | 2.5 MW |
| Published durations | 2 h · 4 h | 2 h · 3.3 h |
| Segment | utility-scale | utility-scale |
| Status | shipping | shipping |
| Cell chemistry | LFP | LFP |
| Cell capacity | 587 Ah | not published |
| Cell configuration | 416S4P (10-ft) / 416S8P (20-ft) | not published |
| Cell supplier | not published | not published |
| Form factor | 20 ft container | 20 ft container |
| Block type | DC block | DC block |
| PCS integrated | no | no |
| DC voltage | 1081.6–1497.6 V | 1164–1497 V |
| Cooling | liquid-cooled | liquid-cooled |
| Ingress protection | IP55 | IP55 |
| Operating temperature | -30…55 °C | -20…50 °C |
| Dimensions (L × W × H) | 6058 × 2438 × 2896 mm | 6058 × 2438 × 2896 mm |
| Weight | 48 t | 43 t |
| Energy density | not published | not published |
| Round-trip efficiency | not published | not published |
| Cycle life | not published | 8,500 · Cycle Life >8500, Depth of Discharge 98% (single string); test conditions not stated |
| Calendar life | not published | not published |
| Warranty | not published | not published |
| Fire suppression | Aerosol-based suppression system; flooded fire protection systems (options); fire alarm panel, heat and smoke detection, alarm bell and strobe | aerosol |
| Generation | 6.X (2026) | M7-20ft |
| Announced | 2026-01 | not published |
| Certifications | IEC 61000, IEC 62477-1, IEC 62619, IEC 62933-5-2, IEC 63056, UL9540A, UN3536, UN38.3 | CE, IEC 62040-1, IEC 62619, UL 1973, UL 9540A, VDE 2510-50 |
| Public datasheet | yes | yes |
Where they differ
Only fields both manufacturers publish and where the values are not identical. Not a judgement — the right choice depends on the project.
- Max energy per enclosure: 6.X Liquid Cooling Energy Storage System — 6.901 MWh; Container L5000-BAT — 5.016 MWh
- Published durations: 6.X Liquid Cooling Energy Storage System — 2 h · 4 h; Container L5000-BAT — 2 h · 3.3 h
- DC voltage: 6.X Liquid Cooling Energy Storage System — 1081.6–1497.6 V; Container L5000-BAT — 1164–1497 V
- Operating temperature: 6.X Liquid Cooling Energy Storage System — -30…55 °C; Container L5000-BAT — -20…50 °C
- Weight: 6.X Liquid Cooling Energy Storage System — 48 t; Container L5000-BAT — 43 t
- Fire suppression: 6.X Liquid Cooling Energy Storage System — Aerosol-based suppression system; flooded fire protection systems (options); fire alarm panel, heat and smoke detection, alarm bell and strobe; Container L5000-BAT — aerosol
- Generation: 6.X Liquid Cooling Energy Storage System — 6.X (2026); Container L5000-BAT — M7-20ft
- Certifications: 6.X Liquid Cooling Energy Storage System — IEC 61000, IEC 62477-1, IEC 62619, IEC 62933-5-2, IEC 63056, UL9540A, UN3536, UN38.3; Container L5000-BAT — CE, IEC 62040-1, IEC 62619, UL 1973, UL 9540A, VDE 2510-50
Published by only one of the two: Max power per enclosure, Cell capacity, Cell configuration, Cycle life, Announced.
Variants
CRRC Zhuzhou Institute 6.X Liquid Cooling Energy Storage System variants
| Variants | Energy | Power | Duration |
|---|---|---|---|
| CESS-L3125-EU-0.5C — 3.125 MWh (10-ft, 587 Ah) | 3.125 MWh | not published | 2 h |
| CESS-L3125-EU-0.25C — 3.125 MWh (10-ft, 587 Ah) | 3.125 MWh | not published | 4 h |
| CESS-L3450-EU-0.5C — 3.450 MWh (10-ft, 648 Ah) | 3.45 MWh | not published | 2 h |
| CESS-L6250-EU-0.5C — 6.250 MWh (20-ft, 587 Ah) | 6.25 MWh | not published | 2 h |
| CESS-L6250-EU-0.25C — 6.250 MWh (20-ft, 587 Ah) | 6.25 MWh | not published | 4 h |
| CESS-L6901-EU-0.5C — 6.901 MWh (20-ft, 648 Ah) | 6.901 MWh | not published | 2 h |
Pylontech Container L5000-BAT variants
| Variants | Energy | Power | Duration |
|---|---|---|---|
| M7-20ft-5MWh at 0.5C | 5.016 MWh | 2.5 MW | 2 h |
| Min. configuration 3344kWh/1000kW | 3.344 MWh | 1 MW | 3.3 h |
Full model cards
Open CRRC Zhuzhou Institute 6.X Liquid Cooling Energy Storage System →Open Pylontech Container L5000-BAT →
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