Ultima
Built for India’s fast-growing utility-scale solar and hybrid projects — delivering high-density, multi-megawatt-hour storage in a single containerized unit. Plug-and-operate design minimizes civil work for faster commissioning.
Engineering detail, variant by variant
| Variants | C-5.00 MWh / C-6.25 MWh |
| Operating Temp | -30°C to 50°C / -30°C to 55°C |
| Weight | 42 / 49 tons |
| Certification | IEC62619, UL1973, UL9540A (Cell/Pack/Rack/System level) |
Find the right system.
| Power | Backup duration — Storage required | ||
|---|---|---|---|
| Power (MW) | 2 hours | 4 hours | Datasheet |
| 0.75 MW | 1.50 MWh | 3.00 MWh | Datasheet |
| 1.00 MW | 2.00 MWh | 4.00 MWh | Datasheet |
| 1.25 MW | 2.50 MWh | 5.00 MWh | Datasheet |
| 1.50 MW | 3.00 MWh | 6.00 MWh | Datasheet |
| 1.65 MW | 3.30 MWh | 6.60 MWh | Datasheet |
Need a larger utility-scale configuration? Talk to our engineering team →
Every detail accounted for
High-protection containerised construction rated to C4 corrosion standard, built for demanding outdoor environments
5 MWh of usable AC liquid-cooled storage in a single 20ft container with built-in fire suppression system
Integrated HVAC with built-in heater chiller maintains optimal cell temperature across all operating conditions
Fully integrated control stack — main control box, ESMU, and communication circuit power supply in one unit
Multi-layer fire safety: heat detector, deflagration panel, smoke detector, fire alarm control panel, and water FSS port
Built for utility-scale demands
Configurable as 5 MWh and 6.25 MWh in the same 20-ft form factor
Highly configurable inverter designed for 2hr / 4hr discharge rates
Rated for C4 corrosion resistance — functions reliably up to 95% humidity
AI-enabled EMS for instantaneous switching between power sources
Advanced thermal management with multi-layer safety architecture
Fully integrated PCS-BMS-EMS architecture for ramp-rate control and frequency response
Plug-and-operate design — minimizes civil work and installation time
Where the Ultima delivers unstoppable performance
Utility-scale solar & hybrid projects
Engineered for maximum performance and unwavering reliability.
Grid frequency regulation
Engineered for maximum performance and unwavering reliability.
Peak shaving & load shifting
Engineered for maximum performance and unwavering reliability.
Renewable energy integration
Engineered for maximum performance and unwavering reliability.
Ramp-rate control
Engineered for maximum performance and unwavering reliability.
IPP & EPC deployments
Engineered for maximum performance and unwavering reliability.