Great Power · utility-scale
Great Power Max-20HC-5000
shipping20 ft containerDC blockliquid-cooledLFP · 314 AhBNEF Tier 1
Everything below comes from what Great Power publishes about the Max-20HC-5000: the datasheet, the product page and press releases. Where a figure is not published, the field says so — we do not estimate.
Variants
Energy figures are nominal (beginning of life) as published by the manufacturer. One model, several duration options — the same enclosure with different power ratings.
| Variants | Energy | Power | Duration |
|---|---|---|---|
| 5.0 MWh @0.5C (≤417 kW ×6 / 1.25 MW ×2) | 5 MWh | 2.5 MW | 2 h |
Specifications
| Cell chemistry | LFP |
|---|---|
| Cell capacity | 314 Ah |
| Cell configuration | 1P416S ×12 |
| Cell supplier | not published |
| Form factor | 20 ft container |
| Block type | DC block |
| PCS integrated | no |
| DC voltage | 1164.8–1497.8 V |
| Cooling | liquid-cooled |
| Ingress protection | IP55 |
| Operating temperature | -35…60 (discharge), -30…50 (charge) °C |
| Dimensions (L × W × H) | 6058 × 2438 × 2896 mm |
| Weight | 46 t |
| Energy density | not published |
| Round-trip efficiency | 95% |
| Cycle life | not published |
| Calendar life | not published |
| Warranty | not published |
| Fire suppression | aerosol + water |
| Generation | 2024 |
| Announced | 2024-09 |
Certifications
UL 9540UL 9540AUL 1973NFPA 855NFPA 68NFPA 69NFPA 72GB/T 36276IEC 62619IEC 62933IEC 61000
Key facts
- 5.0 MWh @0.5C, 12 racks of 1P416S on 314 Ah LFP cells; max discharge 157 A ×12, max charge 193 A ×12 @5 min
- DC-side RTE 96% @0.25P and 95% @0.5P; cell efficiency ≥96% (company figures)
- IP55 overall, IP67 battery pack, IP54 HV box, IPX5 electrical compartment; weight stated as < 46 t
- Fire protection: whole-cabinet aerosol plus integrated water fire protection, aerogel insulation, AI early warning
- Shown at RE+ 2024 as 'Ultra Max 5000'
What Great Power does not publish for this model
These fields are empty because no public datasheet or release states them. That is information too: ask for these numbers before you shortlist.
Cell supplierEnergy densityCycle lifeCalendar lifeWarranty
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Sourcing quote for Great Power Max-20HC-5000
Coloprice is published by Dream View, a China-sourcing company. For commercial-scale projects we buy BESS containers factory-direct — verified manufacturer, certification review, pre-shipment inspection, export and freight — for a flat 10% fee.
Sources: Great Power — Company Introduction brochure, June 2026 (PDF), pp. 55, 59–60 · Great Power — ESS Products and Solutions brochure, March 2024 (PDF), p. 21 · Great Power — Utility-Scale Energy Storage System (EN) · Great Power — 大型储能系统 (CN product page, certification list) · Great Power at RE+ 2024 (press release)