BESS comparison
AlphaESS Aster 5000 vs Pylontech Container L5000-BAT
Both columns come from what AlphaESS and Pylontech publish. Fields either maker does not publish are marked «not published»; we do not estimate or rank.
AlphaESS
Aster 5000
5.016 MWh
20 ft containerliquid-cooledLFPshipping
Pylontech
Container L5000-BAT
5.016 MWh
20 ft containerliquid-cooledLFPshipping
Specifications side by side
| Field | AlphaESS Aster 5000 | Pylontech Container L5000-BAT |
|---|---|---|
| Max energy per enclosure | 5.016 MWh | 5.016 MWh |
| Max power per enclosure | 2.508 MW | 2.5 MW |
| Published durations | 2 h | 2 h · 3.3 h |
| Segment | utility-scale | utility-scale |
| Status | shipping | shipping |
| Cell chemistry | LFP | LFP |
| Cell capacity | not published | not published |
| Cell configuration | not published | 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 | 1331.2 (rated) V | 1164–1497 V |
| Cooling | liquid-cooled | liquid-cooled |
| Ingress protection | IP55 | IP55 |
| Operating temperature | -40…50 (battery module) °C | -20…50 °C |
| Dimensions (L × W × H) | 6058 × 2438 × 2896 mm | 6058 × 2438 × 2896 mm |
| Weight | 43 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 + sprinkler (redundant dual-extinguishing) + explosion relief panel | aerosol |
| Generation | V01 (2025-05) | M7-20ft |
| Announced | not published | not published |
| Certifications | IEC 61000, IEC 62477, IEC 62619, IEC 62933, NFPA 69, UL 1973, UL 9540A | 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 power per enclosure: Aster 5000 — 2.508 MW; Container L5000-BAT — 2.5 MW
- Published durations: Aster 5000 — 2 h; Container L5000-BAT — 2 h · 3.3 h
- DC voltage: Aster 5000 — 1331.2 (rated) V; Container L5000-BAT — 1164–1497 V
- Operating temperature: Aster 5000 — -40…50 (battery module) °C; Container L5000-BAT — -20…50 °C
- Fire suppression: Aster 5000 — aerosol + sprinkler (redundant dual-extinguishing) + explosion relief panel; Container L5000-BAT — aerosol
- Generation: Aster 5000 — V01 (2025-05); Container L5000-BAT — M7-20ft
- Certifications: Aster 5000 — IEC 61000, IEC 62477, IEC 62619, IEC 62933, NFPA 69, UL 1973, UL 9540A; Container L5000-BAT — CE, IEC 62040-1, IEC 62619, UL 1973, UL 9540A, VDE 2510-50
Published by only one of the two: Cycle life.
Variants
AlphaESS Aster 5000 variants
| Variants | Energy | Power | Duration |
|---|---|---|---|
| Aster 5000 (AlphaCS-H20-DC-LC-EX, 12 clusters, 0.5 P) | 5.016 MWh | 2.508 MW | 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 AlphaESS Aster 5000 →Open Pylontech Container L5000-BAT →
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