Battery Storage
Battery modules, racks, DC cabinets and thermal management provide the storage layer.
Energy storage systems
C&I Energy Storage Systems for Commercial Projects in Europe
Sunket Supply energy storage systems are organized by system architecture: battery cabinets, Battery Cabinet ESS with External Hybrid Inverter, all-in-one ESS and containerized ESS.
Our flagship line. Both products use Hithium prismatic LFP 314Ah cells, liquid cooling and a 261kWh / 125kW C&I architecture (IEC 62619, IEC 62477, G99, VDE4110). Choose the integrated all-in-one, or the DC cabinet plus a matched Deye or Growatt storage inverter.
EU local stock B2B project supply German after-sales
ESS system composition
A complete ESS is not only a battery cabinet. For C&I projects, Sunket Supply matches the battery side with a hybrid inverter or PCS, then adds BMS, EMS, protection and cabinet or container integration.
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Battery + Hybrid Inverter
Used for PV plus storage projects where a hybrid inverter manages solar, battery and grid interaction.
Battery + PCS
Used for larger C&I ESS projects where PCS handles bidirectional power conversion.
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Complete ESS
Battery, inverter or PCS, BMS, EMS, protection and enclosure become one project-ready system.
At a glance
Compare the core electrical and physical specifications across the range. Full datasheets are linked on each product page.
| Model | Capacity | Power | Voltage | Cycle life | Cooling | Dimensions (W×D×H) | Warranty |
|---|---|---|---|---|---|---|---|
| Hithium 261kWh All-in-One (PV & ESS Integrated Machine)Request quote › | 261 kWh (5 × 52.2 kWh modules) | 125 kW integrated PCS (137 kW max) | 832 V (715–923 V) | See datasheet | Liquid cooling | 1350 × 1000 × 2380 mm | See datasheet |
| Hithium 261kWh DC Battery CabinetRequest quote › | 261 kWh (5 × 52.2 kWh modules) | Pairs with 125 kW storage inverter (Deye / Growatt) | 832 V (715–923 V) | See datasheet | Liquid cooling | 1350 × 1000 × 2380 mm | See datasheet |
Certifications & safety
Products in this range are certified to European and international standards for cells, power electronics, transport and EMC.
- CE
- IEC 62619
- IEC 62477
- UN 38.3
Best fit
- Factories and warehouses needing peak shaving
- Commercial solar-plus-storage projects
- System integrators selecting ESS architecture
Common applications
- Peak shaving
- Self-consumption optimisation
- PV plus ESS
- Battery plus hybrid inverter projects
- Battery plus PCS projects
Procurement reasons
- Battery plus inverter or PCS architecture stated clearly
- Separated from standalone battery pages
- External hybrid inverter architecture clearly labeled
- Air-cooled and liquid-cooled cabinet options
Product range: Hithium 261kWh Liquid-Cooled ESS
Hithium 261kWh All-in-One ESS (125kW PCS)
Liquid-cooled PV & ESS integrated machine: 261kWh Hithium LFP battery with a built-in 125kW PCS, BMS, EMS, thermal management and multistage fire protection — a complete Hithium system.
Technical review
Hithium 261kWh DC Battery Cabinet
Liquid-cooled 261kWh DC battery cabinet (Hithium LFP 314Ah) for pairing with an external 125kW storage inverter — matched with Deye SUN-100-125K / SUN-60-80K or Growatt WIT 63-125KW.
Technical review
Where this is applied
These products are deployed across the following commercial and grid-scale applications.
PV + ESS
Commercial solar generation combined with battery storage for lower grid purchases and higher self-consumption.
View solution ›Peak Shaving
Battery systems discharge during demand peaks to reduce grid demand charges for factories and commercial sites.
View solution ›Self-Consumption Optimisation
Store daytime solar generation and use it when site demand is higher than PV output.
View solution ›Product FAQ
What makes a battery product a complete ESS?
A complete ESS combines battery storage with a matched hybrid inverter or PCS, plus BMS, EMS, protection and cabinet or container integration.
What does external hybrid inverter ESS mean?
It means the battery cabinet is paired with a separate external hybrid inverter instead of being fully integrated inside one cabinet.
Are PCS products included in ESS matching?
Yes. PCS matching is part of the ESS architecture for larger C&I storage projects, especially all-in-one and containerized systems.
Are the systems grid-code compliant?
Yes. PCS options support European grid-connection codes including EN 50549, VDE-AR-N 4105, G99 and IEC 62116 anti-islanding, confirmed per project and country.