Manufacturer · China
CLOU Electronics
BNEF Tier 1Shenzhen-listed (002121) system integrator, majority-owned by Midea Group since 2023; in storage since 2009 with in-house PCS, BMS and EMS. Aqua-C utility line (Aqua-C2.5 5 MWh, Aqua-C3.0 6.25 MWh, Aqua-C3.0 Ultra 5.15 MWh in ~15 ft, Aqua-C2.5 Mini 10 ft) in string-PCS (S) or DC high-voltage-box (H) versions, plus Aqua-E/X C&I cabinets.
- Country
- China
- Headquarters
- Shenzhen, Guangdong
- Founded
- 1996
- Official website
- clouess.com
- Segments
- utility-scale · commercial & industrial
- Makes its own cells
- no
- BNEF Tier 1
- BNEF Tier 1 (bankability list)
Model
8
8 models
Classes represented
AC blocks (PCS integrated)C&I cabinetsLiquid-cooled utility systems
CLOU Electronics models in the catalog
Sorted by maximum published energy. Click a model for all variants, the full specification and the list of fields CLOU Electronics does not publish.
| Model | Segment | Form factor | Max energy | Max power | Cooling | Chemistry | Cell Ah | AC/DC | Status | Datasheet |
|---|---|---|---|---|---|---|---|---|---|---|
| Aqua-C3.0 Pro | utility-scale | 20 ft container | 6.88 MWh | not published | liquid-cooled | LFP | not published | AC | announced | — |
| Aqua-C3.0 (S/H Version) | utility-scale | 20 ft container | 6.251 MWh | 3.125 MW | liquid-cooled | LFP | 587 | AC | shipping | |
| Aqua-C3.0 Ultra (S/H Version) | utility-scale | modular block | 5.154 MWh | 1.288 MW | liquid-cooled | LFP | 587 | AC | shipping | |
| Aqua-C2.5 (S/H Version) | utility-scale | 20 ft container | 5.016 MWh | 2.58 MW | liquid-cooled | LFP | 314 | AC | shipping | |
| Aqua-C2.5 Mini | utility-scale | modular block | 2.508 MWh | 625 kW | liquid-cooled | LFP | 314 | AC | shipping | |
| Aqua-E261 | commercial & industrial | cabinet | 261 kWh | 125 kW | liquid-cooled | LFP | 314 | AC | shipping | |
| Aqua-X261 | commercial & industrial | cabinet | 261 kWh | 125 kW | hybrid cooling | LFP | 314 | AC | shipping | |
| Aqua-E233 | commercial & industrial | cabinet | 233 kWh | 110 kW | liquid-cooled | LFP | 280 | AC | shipping |
About CLOU Electronics
Shenzhen CLOU Electronics is a Chinese energy-storage integrator and smart-grid company founded in 1996, listed on the Shenzhen Stock Exchange (002121) and part of Midea Group since 2023. It does not make cells and does not name its cell suppliers; datasheets specify LFP 3.2 V cells of 280, 314 or 587 Ah. CLOU designs its own string PCS, MV PCS skids, BMS and EMS, and most utility products are sold in two versions: S (string PCS integrated, AC block) and H (DC high-voltage box). The current utility line is Aqua-C2.5 (20 ft, 5.016 MWh, 314 Ah), Aqua-C3.0 (20 ft, 6.25 MWh, 587 Ah), Aqua-C3.0 Ultra (14.5 ft, 5.154 MWh, 587 Ah, launched 2026) and Aqua-C2.5 Mini (10 ft, 2.09/2.51 MWh, built for Japan); Aqua-C3.0 Pro (600+ Ah, 6.88 MWh) was shown at RE+ 2025 but has no product page. C&I cabinets Aqua-E261, Aqua-X261 (PV-coupled) and Aqua-E233 integrate a 110–125 kW PCS. All are liquid-cooled; utility containers list UL 9540A/UL 9540/NFPA 855 (US) and IEC 62619/62933 (IEC) compliance and IEEE 693 seismic. Not published: system round-trip efficiency for utility products (only in press releases), cycle life and warranty for containers, calendar life; utility PDFs are image-only.
Photo policy
CLOU Electronics publishes no image licence or press kit, so model cards show a schematic illustration instead of a manufacturer photo. Photos will be added only with written permission.
No press-kit or media-terms page; the site's 'Privacy Policy & Legal Notice' page contains only the privacy policy. Product images are plain PNGs on the product pages; datasheets say 'All rights reserved. Subject to change without notice.'
Sources
Manufacturer documents used for this record. Model-level sources are listed on each model card.
- CLOU ESS — Products — https://www.clouess.com/products
- CLOU ESS — Introduction — https://www.clouess.com/introduction
- DNV Bankability Report Aqua-C2.5H & Aqua-C2.5S (PDF) — https://www.clouess.com/storage/file/20260123/CLOU%20DNV%20Aqua%20C%202.5H%20%26%20Aqua%20C2.5S%20Bankability%20Report.pdf
- PR Newswire — CLOU releases two versions of Aqua-C2.5 (2024-09) — https://www.prnewswire.com/news-releases/clou-electronics-releases-two-versions-of-the-5mwh-energy-storage-system-aqua-c2-5--302244454.html