Commercial and industrial solar storage
Validate the duty cycle, site, interfaces, and operating objective before confirming model suitability.
energy storage
WEIDA Liquid-Cooled AC Storage Systems and DC Battery Cabinets
Compare WEIDA 125 kW / 261 kWh and 250 kW / 522 kWh AC systems with a 418 kWh high-voltage DC battery cabinet for separately specified power conversion.
- 261 kWh AC system
- 125 kW / 261 kWh; 400 V AC, 50/60 Hz
- 261 kWh battery / enclosure
- 832 V / 314 Ah; 1,000 × 1,350 × 2,250 mm; 2,660 kg
- 522 kWh AC system
- 250 kW / 522 kWh; 400 V AC, 50/60 Hz
- 522 kWh battery / enclosure
- 832 V / two 314 Ah groups; 1,925 × 1,400 × 2,300 mm; 4,800 kg
Product overview
The 261 and 522 kWh configurations include AC power conversion at 400 V. The 418 kWh cabinet provides a DC battery interface and requires a separately specified PCS. Select the electrical architecture before comparing enclosure size and installation mass.
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.
Key specifications
| Parameter | Value | Condition or note |
|---|---|---|
| 261 kWh AC system | 125 kW / 261 kWh; 400 V AC, 50/60 Hz | Three phase with neutral and protective earth; 181 A AC. |
| 261 kWh battery / enclosure | 832 V / 314 Ah; 1,000 × 1,350 × 2,250 mm; 2,660 kg | Width × depth × height; battery operating voltage 728–949 V. |
| 522 kWh AC system | 250 kW / 522 kWh; 400 V AC, 50/60 Hz | Three phase with neutral and protective earth; 360 A AC. |
| 522 kWh battery / enclosure | 832 V / two 314 Ah groups; 1,925 × 1,400 × 2,300 mm; 4,800 kg | Width × depth × height; battery operating voltage 728–949 V. |
| 522 kWh system temperature | −20–55 °C | Power derates above 45 °C. |
| 418 kWh DC cabinet | 1,331.2 V DC / 418 kWh; 157 A rated charge and discharge | Eight 52.25 kWh modules; operating range 1,164.8–1,497.6 V DC. |
| 418 kWh enclosure | 1,300 × 1,350 × 2,300 mm; 3,500 kg | Width × depth × height. |
| 418 kWh operating temperature | Charge 0–50 °C; discharge −20–50 °C | — |
| Battery chemistry / cooling | LFP / liquid cooling | — |
| Enclosure protection | IP54 | — |
| Communications | CAN and RS485 | The 418 kWh DC cabinet also lists Ethernet. |
Applications to evaluate
Site peak management
Validate the duty cycle, site, interfaces, and operating objective before confirming model suitability.
Battery integration with a separate PCS
Validate the duty cycle, site, interfaces, and operating objective before confirming model suitability.
Selection, supply scope and engineering notes
- Specify the AC system or DC cabinet configuration, usable energy and intended duty cycle in the request.
- Match the quoted enclosure drawing, lifting mass, service clearance and electrical interface to the site.
- For the DC cabinet, define the PCS, controls, AC protection and grid-connection responsibilities.
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.
Guides for your technical review
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 →DC Container vs AC BESS
A battery container's MWh rating does not define a complete grid-connected AC energy storage system. Separate the DC battery boundary from PCS, transformer, switchgear, controls, civil works, installation, commissioning, and acceptance before comparing proposals.
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.
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 WEIDA 261 / 522 / 418 kWh
Technical questions and quotation enquiries for this model.