Great Power · utility-scale
Great Power Max-20HC-6250
announced20 ft containerDC blockliquid-cooledLFP · 587 AhBNEF Tier 1
Everything below comes from what Great Power publishes about the Max-20HC-6250: 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 |
|---|---|---|---|
| 6.25 MWh @0.5C (≤1563 kW ×2) | 6.25 MWh | 3.126 MW | 2 h |
Specifications
| Cell chemistry | LFP |
|---|---|
| Cell capacity | 587 Ah |
| Cell configuration | 8P416S |
| Cell supplier | not published |
| Form factor | 20 ft container |
| Block type | DC block |
| PCS integrated | no |
| DC voltage | 1164.8–1497.6 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 | 48 t |
| Energy density | not published |
| Round-trip efficiency | not published |
| Cycle life | not published |
| Calendar life | not published |
| Warranty | not published |
| Fire suppression | not published |
| Generation | 2026 |
| Announced | 2026-06 |
Key facts
- 6.25 MWh @0.5C in a 20HC DC container on self-developed 587 Ah 'Fengpeng' LFP cells
- Rated power ≤1563 kW ×2 (two DC circuits); max charge/discharge current 1174 A @5 min
- Functional safety Class B; communication CAN, MODBUS TCP
- Listed in the 2026 column of the company product roadmap; spec table published in the June 2026 brochure
- No certification list, RTE, cycle life or warranty published for this model
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 densityRound-trip efficiencyCycle lifeCalendar lifeWarrantyFire suppression
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Sourcing quote for Great Power Max-20HC-6250
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), p. 56 · Great Power — Utility-Scale Energy Storage System (EN)