Great Power · commercial & industrial
Great Power Great One 260-I
shippingcabinetAC block (PCS integrated)immersion-cooledLFP · 314 AhBNEF Tier 1
Everything below comes from what Great Power publishes about the Great One 260-I: 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 |
|---|---|---|---|
| 260 kWh, 125 kW (max 135 kW), 0.5P | 260 kWh | 125 kW | 2 h |
Specifications
| Cell chemistry | LFP |
|---|---|
| Cell capacity | 314 Ah |
| Cell configuration | 1P260S |
| Cell supplier | not published |
| Form factor | cabinet |
| Block type | AC block (PCS integrated) |
| PCS integrated | yes |
| DC voltage | 728–923 (nominal 832) V |
| Cooling | immersion-cooled |
| Ingress protection | not published |
| Operating temperature | -20…55 °C |
| Dimensions (L × W × H) | 1400 × 1200 × 2385 mm |
| Weight | 2.9 t |
| Energy density | not published |
| Round-trip efficiency | 90% |
| Cycle life | not published |
| Calendar life | not published |
| Warranty | not published |
| Fire suppression | not published |
| Generation | not published |
| Announced | not published |
Key facts
- C&I AC/DC cabinet with immersion cooling + HVAC; 260 kWh on cell GSP71173204F (3.2 V, 314 Ah), 1P260S, packs 1P65S
- AC side 380 V 3P4L, rated 125 kW, max 135 kW, 110% continuous overload; DC 832 V nominal, 172 A rated / 180 A max
- System efficiency ≥90%; working temperature -20…55 °C; 1200×1400×2385 mm, 2900 kg
- Sold under the 'Great One' C&I brand; certification list, IP rating and cycle life not 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 supplierIngress protectionEnergy densityCycle lifeCalendar lifeWarrantyFire suppressionGenerationAnnounced
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Sourcing quote for Great Power Great One 260-I
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. 53 · Great Power — C&I Energy Storage System (EN)