Legion C20
Battery Energy Storage System
1,500 kW / 3,760 kWh
EticaAG’s Legion C20 is a containerized energy storage system engineered for rapid installation and reliable operation across industrial manufacturing, utility and sub-utility substations, and energy distribution sites.
Featuring LiquidShield™ Immersion Technology and HazGuard™ Toxic Gas Neutralization, it prevents battery fires, maintains consistent cell temperatures, and neutralizes toxic gases at the source for safety-critical environments.
The system avoids dedicated HVAC equipment, using an integrated heat exchanger to cool the immersion liquid, reducing maintenance and lowering operating noise.
Built for safety-critical sites, Legion C20 supports large-scale deployments where risk reduction and operational resilience are the priority.
Zero Fire Risk
Submerging cells in a high fire-point fluid eliminates flames, stops fire, and prevents propagation by isolating failures and blocking heat transfer.
No Hazardous Gas Release
HazGuard™ captures toxic and flammable gases and converts them into safe, inert compounds before release.
Extended Battery Life
Immersion cooling maintains uniform cell temperatures, eliminates hotspots, prevents degradation, and extends battery life by up to 22%.
FEOC Compliant
ITC-eligible and FEOC-compliant, with U.S. manufacturing and a secure supply chain that supports IRA tax credit eligibility.
Legion C20 Specifications
Our modular design allows for customizations to fit you project needs. Contact us for more information.
| Energy & Power | |
|---|---|
|
Nameplate Energy Capacity |
3,760 kWh |
|
Continuous Power Rating |
1,043 kW to 1,500 kW AC |
|
AC Voltage Range |
480–690 VAC, 3-phase, 60 Hz |
|
Auxiliary Voltage |
208 VAC 3ph, 60 Hz |
|
Cell Chemistry |
LiFePO4 |
|
Cycle Life |
10,000 cycles @ 25C
|
| Physical & Mechanical | |
|---|---|
|
Cabinet Dimensions (L × W × H) |
240 x 96 x 114 in. |
|
Cabinet Weight |
86,000 lbs |
|
Enclosure Rating |
IP66 |
| Safety & Compliance | |
|---|---|
|
Cooling Method |
LiquidShield™ Immersion Cooling |
|
Fire Prevention |
LiquidShield™ Immersion Cooling with automatic ventilation |
|
Gas management |
Active gas neutralization system |
|
Fire Detection and Suppression |
Heat, smoke, and gas detectors. Aerosol fire suppressant |
|
Certifications |
UL9540*, UL9540A, UL1973, UN38.3, UL1741 |
*Testing Complete, Certifications Pending
| Control & Integration | |
|---|---|
|
Battery Management |
Tier 1, FEOC Compliant BMS Included |
|
Communication Protocols |
Modbus TCP/IP protocol, SunSpec Compliant |
| Environmental | |
|---|---|
|
Operating Outside Temp. Range |
-22 °F to 122 °F |
|
Humidity |
10%-90% RH, non-condensing |
|
Altitude |
</= 6562 ft |
Integrated 1,000 kW-Class Energy Storage Inverter
Inverter configuration shown reflects EticaAG’s recommended inverter. Other compatible inverter options are available upon request.
| Specifications | |
|---|---|
|
Rated output |
1,043–1,500 kW AC |
|
AC voltage / phase |
480–690 VAC, 3-phase |
|
Grid frequency |
50 / 60 Hz (configurable) |
|
DC voltage range |
330–1,500 VDC |
|
Max / CEC efficiency |
98.8% peak | 98.4% CEC |
|
Harmonics |
IEEE 1547 compliant, <3% TDD |
|
Power factor |
0.8–1.0 leading or lagging |
|
Microgrid / Resiliency |
Black start, droop control, islanded operation, UPS mode |
|
Enclosure / cooling / temp |
IP55 / NEMA 3R; hybrid liquid / air, −20°C to +60°C |
|
Size / weight |
89.8 × 39.4 × 68.7 in, 3,420 lb |
|
Certifications |
UL 1741, IEEE 1547, CSA C22.2 No. 107.1, IEC 62477-1, IEC 62909-1 |
Learn More
Ready to Get Started?
Contact EticaAG for a project-specific estimates, final values depend on system design, location, and user application.