
BATTERY ENERGY STORAGE SYSTEMS (BESS)
Prime 40 FT — containerized 6–9 MWh BESS
Country: Romania · Model: 40 FT
Containerized BESS of 6 or 9 MWh in a 40-foot enclosure, with a power of 3 MW or 4.5 MW respectively. It is the highest-capacity system in the range for grid projects. Used for frequency regulation, peak shaving and renewables integration.
- Capacity
- 6 or 9 MWh
- Power
- 3 MW (6 MWh) or 4.5 MW (9 MWh)
- Cell chemistry
- in-house Li-ion
- Cooling
- air, with HVAC system
Technical specifications
| Capacity | 6 or 9 MWh |
|---|---|
| Power | 3 MW (6 MWh) or 4.5 MW (9 MWh) |
| Cell chemistry | in-house Li-ion |
| Cooling | air, with HVAC system |
| Fire safety | smoke, temperature and gas sensors, audible and visual alarm, gas fire suppression |
| Enclosure | 40-foot container, steel, soundproofed, fire-resistant |
| Composition | PCS, EMS, HVAC, thermal management |
| Scaling | parallel connection of containers to a common bus |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
Cooling is by air, with an HVAC system. The enclosure is steel, soundproofed and fire-resistant. Fire safety is provided by smoke, temperature and gas sensors, an audible and visual alarm and gas fire suppression. The package includes PCS, EMS, HVAC and thermal management, with in-house Li-ion cells. Containers are connected in parallel to a common bus, so a project can be scaled up to gigawatt-hour level. The power of 3 MW or 4.5 MW is tied to the capacity, and this must be taken into account when choosing the grid connection point.
How to choose
Capacity and power come as a pair. The 6 MWh variant has 3 MW, the 9 MWh variant has 4.5 MW, and there are no intermediate combinations. If the site is smaller, see the 20 FT model of 2–4.5 MWh with liquid cooling. For a business that needs only 500 kWh there is the 10 FT. If the site is near housing, note that the enclosure is soundproofed and cooling is by air with HVAC.
Request a price and lead time
Prime 40 FT — containerized 6–9 MWh BESS. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What are the capacity and power of the 40-foot BESS?
Capacity 6 or 9 MWh. Power 3 MW and 4.5 MW respectively.
What cooling is used in the 40-foot container?
Air cooling, with an HVAC system.
What fire safety means does the 40-foot BESS have?
Smoke, temperature and gas sensors, an audible and visual alarm and gas fire suppression.
How can a project based on 40-foot containers be scaled?
Containers are connected in parallel to a common bus, which opens the way to projects in gigawatt-hours. Each container includes an EMS.
What tasks is the 6–9 MWh system intended for?
Frequency regulation, peak load shaving and renewables integration in grid projects.
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REQUEST
Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.



