125 kW rated power
Compare rated AC power with the site's coincident peak and controlled loads. The product sheet states output derating above 45 °C; request the applicable curve.
energy storage
PowerFac-261 125 kW / 261 kWh Liquid-Cooled ESS
An all-in-one outdoor liquid-cooled system rated at 125 kW / 261 kWh for commercial, industrial, charging, and low-voltage distribution applications.
- 125 kW rated power
- 261 kWh nominal energy
- All-in-one AC 400 V system
- Liquid-cooled thermal management
- Rated power
- 125 kW
- Nominal energy
- 261 kWh
- AC connection
- 400 V, 3W + N + PE
- Battery chemistry
- LFP, 3.2 V / 314 Ah cells
Product overview
PowerFac-261 is an all-in-one liquid-cooled cabinet with an AC 400 V connection and EMS functions. Its 125 kW rated power and 261 kWh nominal battery energy describe different limits: usable energy and discharge duration must be confirmed for the operating window, site conditions, and auxiliary loads.
Configuration note: nameplate values help define the starting point. Final usable energy, interfaces, operating limits, document scope, and commercial terms are confirmed for the specific project.
261 kWh nominal energy
This is battery nameplate energy. Confirm usable AC energy, the operating window and auxiliary loads before specifying discharge duration.
All-in-one AC 400 V system
The published connection is 400 V, 3W + N + PE, at 50/60 Hz. Confirm local grid requirements and the external equipment included in the quotation.
Liquid-cooled thermal management
Account for cooling auxiliary loads when comparing usable energy and duty cycle. Review site temperature, service access and maintenance responsibilities.
Key specifications
| Parameter | Value | Condition or note |
|---|---|---|
| Rated power | 125 kW | AC rated power; the product sheet states output derating above 45 °C. |
| Nominal energy | 261 kWh | Battery nameplate energy; not a guarantee of usable AC energy or runtime. |
| AC connection | 400 V, 3W + N + PE | The product sheet lists 50/60 Hz; confirm local grid and protection requirements. |
| Battery chemistry | LFP, 3.2 V / 314 Ah cells | Cell-level ratings; use the separate cabinet energy and voltage values for system comparison. |
| Nominal battery voltage | 832 V | Battery-side DC value, distinct from the 400 V AC connection. |
| DC operating voltage | 728–949 V | Battery operating range stated in the model parameter table. |
| Recommended depth of discharge | 90% | The recommended setting does not by itself establish delivered AC energy. |
| Thermal management | Liquid cooling | Include cooling auxiliary loads when assessing usable energy and duty cycle. |
| Enclosure rating | IP54 cabinet / IP65 battery packs | The cabinet and battery-pack ratings apply to different enclosures. |
| Operating temperature | −20 to 55 °C | Output derates above 45 °C; request the applicable derating curve. |
| Operating altitude | Up to 2000 m; 2000–4000 m with derating | Request the applicable altitude derating and confirm the installation elevation. |
| Dimensions (W × D × H) | 1000 × 1350 × 2350 mm | Cabinet dimensions; allow separately for clearances, cabling, and service access. |
| Approximate mass | 2650 kg | Confirm the final configuration for lifting and foundation design. |
To assess output at the site, review temperature derating and the power measurement point alongside the quoted operating limits.
Before comparing round-trip efficiency figures, check the measurement boundary and test conditions in each proposal.
Applications to evaluate
Commercial and industrial energy management
Validate the duty cycle, site, interfaces, and operating objective before confirming model suitability.
Solar self-consumption and renewable integration
Validate the duty cycle, site, interfaces, and operating objective before confirming model suitability.
Charging stations and low-voltage distribution areas
Validate the duty cycle, site, interfaces, and operating objective before confirming model suitability.
Site resilience and peak management
Validate the duty cycle, site, interfaces, and operating objective before confirming model suitability.
Review the application requirements
- Commercial & Industrial Energy Management
- Renewable Energy & Battery Integration
- EV Charging, Solar & Storage Microgrids
Define the site duty before choosing a cabinet
For a charging site, check charging demand, simultaneous sessions and battery recharge windows before comparing them with the cabinet ratings.
For a solar-storage project, define peak-shaving limits, backup reserve and recharge priorities. Backup operation still requires a project-specific design and control review.
Selection, supply scope and engineering notes
- Confirm that 125 kW covers the coincident peak and controlled loads assigned to the system.
- Model the operating window from usable energy, actual duty cycle, tariff, and renewable-generation data.
- Confirm the quoted cabinet configuration and site supply boundary. List external switchgear, transformer, cabling, metering, civil works, installation, and commissioning separately rather than assuming they are included.
- For backup operation, define protected loads, changeover, operating modes, and controls in the proposal; the power and energy ratings alone do not establish backup capability.
- Request a controlled PowerFac-261 data sheet with a revision and issue date, usable-energy conditions, and the temperature and altitude derating curves.
- Review foundation, clearance, cable routing, ambient conditions, fire strategy, communications, and interconnection scope.
- Send installation country, temperature, altitude, available space, interval load/generation data, connection details, backup requirements, quantity and schedule with the RFQ. Agree model-specific warranty, maintenance responsibilities and acceptance criteria in the quotation.
Confirm the project responsibility matrix
The product rating does not define a turnkey project scope. The quotation should identify who supplies, integrates, installs, commissions, and accepts each applicable item.
- Battery system, BMS, thermal management, enclosure, internal protection, and communications
- PCS, EMS or SCADA, transformer, switchgear, metering, external protection, and grid interface
- Fire strategy, foundations, lifting, cable routing, installation, testing, and commissioning
- Documentation, training, spare parts, warranty conditions, maintenance, and acceptance records
Technical documents
Use the public page and any available procurement brief for initial comparison. Request the applicable controlled data sheet, drawings, test or certificate evidence, and commercial documents for the exact quoted model and destination.
PowerFac-261 technical procurement brief
Download the English brief with nominal specifications, operating limits, supply responsibilities and the information needed for a comparable quotation.
Source: PowerFac-261 product brochure, pages 1–2.
Download PowerFac-261 brief (PDF)Guides for your technical review
Compare HUA-X 215 kWh and 261 kWh cabinets before requesting a proposal →
C&I BESS Sizing Guide
A defensible C&I battery energy storage system size comes from interval load data, a ranked operating objective, power constraints and usable energy at a stated measurement point. Start with the duty the site needs, then evaluate the cabinet or container configuration against it.
Read guide →Air vs Liquid Cooling
Air and liquid cooling are system-level choices. Compare heat density, temperature uniformity, ambient conditions, parasitic demand, acoustic limits, maintenance, fault response, and site layout—not capacity alone.
Read guide →BESS Safety Review
A BESS safety review should connect cell and module behavior to electrical protection, BMS controls, thermal management, enclosure, fire strategy, emergency response, site layout, installation, and operating procedures.
Read guide →BESS RFQ Checklist
A useful BESS RFQ states the operating objective, site data, power, usable energy, duration, electrical interface, environment, safety requirements, scope split, documents, and acceptance criteria.
Read guide →Frequently asked questions
What buyers ask before specifying a battery system
Answers cover the information needed to confirm configuration, operating conditions, documentation, price, and delivery.
Does 261 kWh mean PowerFac-261 delivers 261 kWh at the AC connection?
No. PowerFac-261 has 261 kWh nominal battery energy and 125 kW rated AC power. The usable energy delivered at its 400 V AC connection must be specified separately for the operating window, load, temperature, conversion losses, auxiliary loads, and reserve. Dividing the nameplate energy by rated power does not establish a guaranteed runtime.
Can PowerFac-261 deliver full rated power at every listed temperature and altitude?
No. The product sheet lists an operating range of −20 to 55 °C, with output derating above 45 °C. It also specifies altitude derating from 2000 to 4000 m. Provide the site temperature range and elevation, and request the applicable derating curves before confirming available power.
What information is needed to size a battery energy storage system?
Provide the load profile, target power and energy duration, grid or generator constraints, installation environment, operating temperature range, and the functions the system must perform. A single capacity figure is not enough for responsible system selection.
When should I consider air-cooled or liquid-cooled energy storage?
Cooling selection depends on system size, heat density, ambient conditions, enclosure layout, service access, and the project performance target. Compare the complete thermal design rather than choosing from capacity alone.
What safety information should a BESS proposal include?
A project proposal should identify the cell chemistry, electrical protection, BMS architecture, thermal management, enclosure rating, fire strategy, emergency isolation, monitoring, installation limits, and the standards required by the destination project.
Why are prices not published on the product pages?
The listed products are project-configured B2B systems or battery series. Pricing depends on configuration, quantity, accessories, packaging, destination, and commercial terms, so quotations are prepared against a defined project scope.
What is the production and delivery lead time?
Lead time is confirmed only after the configuration, quantity, compliance documents, packaging, and destination are known.
Discuss the PowerFac-261
Technical questions and quotation enquiries for this model.