EVE Energy · utility-scale
EVE Energy 6.9MWh BESS (S6900, Mr. Big family)
announced20 ft containerDC blockliquid-cooledLFP · 628 AhBNEF Tier 1
Everything below comes from what EVE Energy publishes about the 6.9MWh BESS (S6900, Mr. Big family): 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 |
|---|---|---|---|
| 6.9 MWh | 6.9 MWh | not published | not published |
Specifications
| Cell chemistry | LFP |
|---|---|
| Cell capacity | 628 Ah |
| Cell configuration | not published |
| Cell supplier | not published |
| Form factor | 20 ft container |
| Block type | DC block |
| PCS integrated | no |
| DC voltage | not published |
| Cooling | liquid-cooled |
| Ingress protection | not published |
| Operating temperature | not published |
| Dimensions (L × W × H) | not published |
| Weight | not published |
| Energy density | not published |
| Round-trip efficiency | not published |
| Cycle life | 10,000 · '10,000 cycles at 70% state of health (SOH)' per April 2026 press release; test conditions not published |
| Calendar life | not published |
| Warranty | not published |
| Fire suppression | staged fire suppression (press release); perfluorohexanone per press coverage |
| Generation | Mr. Big family (628 Ah, CTP) |
| Announced | 2025-08 |
Certifications
CB (per April 2026 press release)CE (per April 2026 press release)
Key facts
- 628 Ah cells with cell-to-pack (CTP) integration in a standard 20 ft container
- Cell-level volumetric energy density >430 Wh/L; +10% energy density and -6% footprint vs. previous generation (press release)
- Modular split / top-mounted liquid cooling; temperature differential within 5 °C
- 1500 V DC five-level protection; global launch April 2026, mass production targeted from Q3 2025
- No datasheet, power rating or dimensions published
What EVE Energy 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 configurationCell supplierDC voltageIngress protectionOperating temperatureDimensions (L × W × H)WeightEnergy densityRound-trip efficiencyCalendar lifeWarranty
Price signal
not published
No published price — EVE has not disclosed pricing for this launch. 20-ft cell-to-pack container on 628Ah cells, >430 Wh/L density, >10,000 cycles; over 50 GWh in large-format battery deals signed at launch (ESIE 2026), with further 67 GWh+ orders announced at SNEC 2026. Directional guide only: as a tier-1 China DC block it would likely price near China's H1 2026 tender benchmarks ($75-84/kWh average), but no vendor quote exists to confirm.
From the Coloprice BESS Price Index — a benchmark, not an offer. See the index for how each figure was collected. See the BESS Price Index →
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Sourcing quote for EVE Energy 6.9MWh BESS (S6900, Mr. Big family)
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: EVE press release — Launches 6.9MWh BESS globally (PR Newswire, 7 Apr 2026) · EVE news — SNEC ES+ 2025 (6.9 MWh system) · EVE news — BNEF Summit (6.9 MWh containerized systems) · ESS News — EVE showcases 6.9 MWh storage system (press coverage)