BESS comparison
CALB 20ft 5MWh High-Voltage Liquid-Cooled Container ESS vs CATL TENER
Both columns come from what CALB and CATL publish. Fields either maker does not publish are marked «not published»; we do not estimate or rank.
CALB
20ft 5MWh High-Voltage Liquid-Cooled Container ESS
5 MWh
20 ft containerliquid-cooledLFPshipping
CATL
TENER
6.25 MWh
20 ft containerliquid-cooledLFPshipping
Specifications side by side
| Field | CALB 20ft 5MWh High-Voltage Liquid-Cooled Container ESS | CATL TENER |
|---|---|---|
| Max energy per enclosure | 5 MWh | 6.25 MWh |
| Max power per enclosure | not published | 3.126 MW |
| Published durations | not published | 2 h |
| Segment | utility-scale | utility-scale |
| Status | shipping | shipping |
| Cell chemistry | LFP | LFP |
| Cell capacity | 314 Ah | 587 Ah |
| Cell configuration | not published | 1P104S×4×8P (pack 1P104S, 4 packs per rack = 1P416S, 8 racks in parallel) |
| 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 | not published | 1331.2 rated; 1040–1500 range V |
| Cooling | liquid-cooled | liquid-cooled |
| Ingress protection | not published | not published |
| Operating temperature | not published | -30…55 °C |
| Dimensions (L × W × H) | not published | not published |
| Weight | not published | 45 t |
| Energy density | not published | not published |
| Round-trip efficiency | 95% | not published |
| Cycle life | not published | 8,000 · Cell-level figure from CATL 2026 brochure: 587 Ah cell ≥8,000 cycles (25 °C, 0.5P/0.5P, 70% SOH). System-level cycle life not published; CATL claims zero capacity/power degradation in first five years. |
| Calendar life | 15 y | not published |
| Warranty | not published | not published |
| Fire suppression | pack-level detection and suppression (one detector and one suppression unit per pack); system-level immersion water fire protection | not published |
| Generation | 314Ah / 1P104S | TENER (2024); Chinese market designation 天恒 C2-L625 |
| Announced | not published | 2024-04 |
| Certifications | not published | GB 44240-2024, GB/T 34131-2023, GB/T 36276-2023, GB/T 44026-2024 |
| Public datasheet | no | 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: 20ft 5MWh High-Voltage Liquid-Cooled Container ESS — 5 MWh; TENER — 6.25 MWh
- Cell capacity: 20ft 5MWh High-Voltage Liquid-Cooled Container ESS — 314 Ah; TENER — 587 Ah
- Generation: 20ft 5MWh High-Voltage Liquid-Cooled Container ESS — 314Ah / 1P104S; TENER — TENER (2024); Chinese market designation 天恒 C2-L625
- Public datasheet: 20ft 5MWh High-Voltage Liquid-Cooled Container ESS — no; TENER — yes
Published by only one of the two: Max power per enclosure, Published durations, Cell configuration, DC voltage, Operating temperature, Weight, Round-trip efficiency, Cycle life, Calendar life, Fire suppression, Announced, Certifications.
Variants
CALB 20ft 5MWh High-Voltage Liquid-Cooled Container ESS variants
| Variants | Energy | Power | Duration |
|---|---|---|---|
| 5 MWh | 5 MWh | not published | not published |
CATL TENER variants
| Variants | Energy | Power | Duration |
|---|---|---|---|
| 6.25 MWh 0.5P (2 × 1562.82 kW); brochure states 2 h/4 h system compatibility | 6.25 MWh | 3.126 MW | 2 h |
Full model cards
Open CALB 20ft 5MWh High-Voltage Liquid-Cooled Container ESS →Open CATL TENER →
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