SiRay Energy
Containerized Energy Storage Systems
A battery plant that arrives on a truck. Both SiRay containers are wired, commissioned and tested before they leave Suzhou - on site, the work is a foundation, a cable and a handshake with your SCADA.
The Two Containerized Energy Storage Sizes
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| Model | Energy | Voltage | Modules | Container | Weight |
|---|---|---|---|---|---|
| ESS-1M2-20FT | 1.2 MWh | 768 V | 75 x 51.2 V 314 Ah | 20 ft | 16 t |
| ESS-2M4-40FT | 2.411 MWh | 768 V | 150 x 51.2 V 314 Ah | 40 ft | — |
What Is Inside
LFP cells at 768 V nominal (672-864 V), air cooling, fire detection and suppression, CANBUS and Modbus TCP/IP out to your SCADA, 90% depth of discharge, 0.5C charge and 0.5C-1C discharge, 96% system efficiency. Design life above 15 years.
Where They Go
- Island and mine microgrids
- Utility peak shaving
- Renewable firming
- Large resort and industrial sites
- Emergency reserve
Shipping and Installation
Standard ISO dimensions (6058 x 2438 x 2896 mm for the 20-ft unit), so it moves by road, rail and sea without special permits. Operating range 0-50 ℃, below 2000 m altitude.
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Common Questions
What comes in a containerized energy storage system from SiRay?
The ESS-1M2-20FT delivers 1.2 MWh at 768 V from 75 modules of 51.2 V 314 Ah in a standard 20-foot container measuring 6058 x 2438 x 2896 mm and weighing 16 tonnes. The ESS-2M4-40FT delivers 2.411 MWh from 150 modules in a 40-foot container. Both include air cooling, fire detection and suppression, CANBUS and Modbus TCP/IP communication, 90% depth of discharge and 96% system efficiency, with a design life above 15 years.
How long does it take to deploy a containerized ESS?
A SiRay container ships wired and factory-tested, so on-site work is limited to a foundation, cable termination and a SCADA handshake. SiRay does not publish a fixed number of days because foundation and port clearance vary by country; the containerized design exists specifically to avoid the civil works that a built-on-site plant requires.
What is the operating temperature range of SiRay storage cabinets?
SiRay C&I cabinets operate from -20 to 50 ℃. The residential GLR and GHR modules charge from 0 to 55 ℃ and discharge from -20 to 60 ℃. The ESS containers operate from 0 to 50 ℃. All outdoor cabinets are rated below 2000 m altitude.
Containerized ESS Models Compared
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| Model | Rated energy | Voltage | Max power | Cycle life | IP rating | Dimensions (mm) | Weight | Communication |
|---|---|---|---|---|---|---|---|---|
| ESS-1M2-20FT | 1570 Ah | 768 V | — | 6000 cycles @ 0.5C, 90% DOD, 25 °C (design life 15 years) | — | 6058 × 2438 × 2896 mm | 16 t | CANBUS / Modbus TCP/IP |
| ESS-2M4-40FT | 3140 Ah | 768 V | — | 6000 cycles @ 0.5C, 90% DOD, 25 °C (design life 15 years) | — | 12192 × 2438 × 2896 mm | 38 t | CANBUS / Modbus TCP/IP |