HESS-261-2h official supplier product render; final site equipment follows the selected regional configuration.
Supplier-reference photography. Confirm the final equipment appearance and included accessories with your quotation.
Technical reference HESS-261-2h; global datasheet V202504
A larger all-in-one commercial storage cabinet with liquid cooling for both battery and PCS. Its 261 kWh battery block and 125 kW rated output suit engineered commercial storage, solar coordination and selected backup architectures.
Configuration, availability, certification scope and commercial terms are confirmed at quotation.
Values below follow the referenced model or explicitly stated model family. Review the final datasheet, rated conditions and supply scope before procurement.
Hoymiles HESS-261-2h official global datasheet V202504
Reference model: HESS-261-2h; global datasheet V202504
Reviewed: 2026-10-15
Values follow the official V202504 datasheet linked by the manufacturer. Newer regional revisions may differ, particularly fire protection and compliance; these fields are not promised here. Rated output is 125 kW at 50 °C, not a blanket output guarantee at every temperature. Backup requires the engineered transfer and protection arrangement. Official product render edited to remove branding only.
| Nominal battery energy | 261 kWh |
|---|---|
| Cell rating / chemistry | 3.2 V / 314 Ah LFP |
| Battery pack configuration | 1P52S / 52.25 kWh |
| System battery configuration | 1P260S |
| Battery voltage range | 728–936 V DC |
| Rated on-grid output | 125 kW at 50 °C |
| Maximum output power | 137.5 kW |
| Rated grid voltage range | 340–440 V AC |
| Grid frequency | 50 / 60 Hz |
| Grid connection | 3P3W / 3P4W |
| Thermal management | Fully liquid-cooled battery and PCS |
| Dimensions (W × H × D) | 1,030 × 2,450 × 1,400 mm |
| Weight | Less than 2,700 kg |
| Ingress protection | IP55 |
| Operating temperature | −30 to +55 °C; derating above 50 °C |
| Communication interfaces | RS485 / Ethernet / DIO |
Published reference values are not a substitute for the final selected-model datasheet and project design.
The complete system must account for site loads, electrical interfaces, environmental limits and local installation requirements.
Explore the planning guideShare your country, quantity, electrical requirements, installation environment and delivery plan. Ask for the final datasheet and supply scope for this reference.
Commercial cabinets
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Supplier's 100 kW / 215 kWh air-cooled cabinet image.
Commercial cabinets
MODEL REFERENCEHCESS1-100-215
HCESS1-100-215 supplier cabinet render; branding removed.