Manufacturer · China
Sigenergy
Shanghai-based inverter and storage maker (founded 2022) known for the residential SigenStor. Its only non-residential storage product is SigenStack, a stackable DC-coupled C&I battery (12 kWh modules, up to 253 kWh per system) paired with Sigen C&I hybrid inverters; no utility-scale BESS is listed.
- Country
- China
- Headquarters
- Shanghai
- Founded
- 2022
- Official website
- sigenergy.com
- Segments
- commercial & industrial
- Makes its own cells
- no
Sigenergy models in the catalog
Sorted by maximum published energy. Click a model for all variants, the full specification and the list of fields Sigenergy does not publish.
| Model | Segment | Form factor | Max energy | Max power | Cooling | Chemistry | Cell Ah | AC/DC | Status | Datasheet |
|---|---|---|---|---|---|---|---|---|---|---|
| SigenStack | commercial & industrial | modular block | 253 kWh | 126.5 kW | air-cooled | LFP | 314 | DC | shipping |
About Sigenergy
Sigenergy Technology Co., Ltd. (Shanghai, founded 2022) sells residential and commercial energy storage, hybrid and PV inverters, EV chargers and the Sigen Cloud/mySigen software. Excluding the residential SigenStor family, the catalogue holds one storage product for business customers: SigenStack, a floor-standing modular battery built from 12.06 kWh LFP modules (314 Ah cells) stacked 4–7 high on a base with a SigenStack BC battery controller, DC-coupled to Sigen C&I hybrid inverters; a system can hold 21 modules (253 kWh). Cooling is smart air cooling, protection IP66, and each pack carries its own aerosol suppression, smoke sensor and exhaust. The two-page datasheet (version 2026-02-24) lists IEC/EN 60730-1, UN 38.3, IEC/EN 62619, IEC/EN 63056, IEC/EN 62040 and UL 9540A. The 'For Utility' section of the site covers only utility PV inverters — no utility-scale battery container is published. Not disclosed: cell supplier, round-trip efficiency, warranty term, PCS ratings (inverter sold separately), calendar life; the 10,000-cycle figure is attributed to the cell manufacturer at 60% SOH. Product images are offered as a ZIP in the download center without stated licence terms.
Photo policy
Sigenergy provides press-kit imagery under press terms; model cards show those photos with credit and a link to the source.
'Product Images - SigenStack' ZIP (2024-12-11) is offered in the official download center (https://wwwstatic.sigenergy.com/content/assets/uploads/en_download/1733903678852513.zip); no explicit usage licence text found.
Sources
Manufacturer documents used for this record. Model-level sources are listed on each model card.
- Sigenergy — Products — https://www.sigenergy.com/en/products
- Sigenergy — Energy Storage Systems category — https://www.sigenergy.com/en/products-category-energy-storage-systems
- Sigenergy — Utility (PV inverters only) — https://www.sigenergy.com/en/utility