BESS comparison
CALB 20ft 5MWh High-Voltage Liquid-Cooled Container ESS vs LG Energy Solution JF2 AC LINK (2HR / 4HR)
Both columns come from what CALB and LG Energy Solution 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
LG Energy Solution
JF2 AC LINK (2HR / 4HR)
5.11 MWh
modular blockliquid-cooledLFPshipping
Specifications side by side
| Field | CALB 20ft 5MWh High-Voltage Liquid-Cooled Container ESS | LG Energy Solution JF2 AC LINK (2HR / 4HR) |
|---|---|---|
| Max energy per enclosure | 5 MWh | 5.11 MWh |
| Max power per enclosure | not published | 2.55 MW |
| Published durations | not published | 2 h · 4 h |
| Segment | utility-scale | utility-scale |
| Status | shipping | shipping |
| Cell chemistry | LFP | LFP |
| Cell capacity | 314 Ah | not published |
| Cell configuration | not published | 14 packs in series × 6 racks in parallel (2HR) |
| Cell supplier | not published | not published |
| Form factor | 20 ft container | modular block |
| Block type | DC block | AC block (PCS integrated) |
| PCS integrated | no | yes |
| DC voltage | not published | not published |
| Cooling | liquid-cooled | liquid-cooled |
| Ingress protection | not published | IP55 |
| Operating temperature | not published | -30…50 °C |
| Dimensions (L × W × H) | not published | 7020 × 2570 × 2900 mm |
| Weight | not published | 48 t |
| Energy density | not published | not published |
| Round-trip efficiency | 95% | not published |
| Cycle life | not published | not published |
| 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 | gas detection and active venting system, fire detection and alarm system |
| Generation | 314Ah / 1P104S | 2024 |
| Announced | not published | 2024-11 |
| Certifications | not published | IEEE1547, IFC/CFC, NFPA 69, NFPA 72, NFPA 855, UL1642, UL1741 (SA, SB), UL1973, UL9540, UL9540A and large-scale fire testing, UN 38.3 |
| 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; JF2 AC LINK (2HR / 4HR) — 5.11 MWh
- Form factor: 20ft 5MWh High-Voltage Liquid-Cooled Container ESS — 20 ft container; JF2 AC LINK (2HR / 4HR) — modular block
- Block type: 20ft 5MWh High-Voltage Liquid-Cooled Container ESS — DC block; JF2 AC LINK (2HR / 4HR) — AC block (PCS integrated)
- PCS integrated: 20ft 5MWh High-Voltage Liquid-Cooled Container ESS — no; JF2 AC LINK (2HR / 4HR) — yes
- Fire suppression: 20ft 5MWh High-Voltage Liquid-Cooled Container ESS — pack-level detection and suppression (one detector and one suppression unit per pack); system-level immersion water fire protection; JF2 AC LINK (2HR / 4HR) — gas detection and active venting system, fire detection and alarm system
- Generation: 20ft 5MWh High-Voltage Liquid-Cooled Container ESS — 314Ah / 1P104S; JF2 AC LINK (2HR / 4HR) — 2024
- Public datasheet: 20ft 5MWh High-Voltage Liquid-Cooled Container ESS — no; JF2 AC LINK (2HR / 4HR) — yes
Published by only one of the two: Max power per enclosure, Published durations, Cell capacity, Cell configuration, Ingress protection, Operating temperature, Dimensions (L × W × H), Weight, Round-trip efficiency, Calendar life, 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 |
LG Energy Solution JF2 AC LINK (2HR / 4HR) variants
| Variants | Energy | Power | Duration |
|---|---|---|---|
| JF2 2HR AC LINK — 5.11 MWh / 2.55 MW, 690 Vrms, 0.5 CP | 5.11 MWh | 2.55 MW | 2 h |
| JF2 4HR AC LINK — 5.11 MWh / 1.32 MW (6 × 220 kVA), 690 Vrms, 0.25 CP | 5.11 MWh | 1.32 MW | 4 h |
Full model cards
Open CALB 20ft 5MWh High-Voltage Liquid-Cooled Container ESS →Open LG Energy Solution JF2 AC LINK (2HR / 4HR) →
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