STAR X outdoor all-in-one battery storage container at dusk

All-in-One BESS Β· Container

All-in-one storage at megawatt scale.

Battery and grid-forming inverter in one liquid-cooled container. Pre-integrated, sized, connected and commissioned by Volthein.

2800 kW

5644 kWh

CATL LFP Cell

530 Ah

Cycle life

>10,000

All-in-one design

Battery and inverter in one container.

Cells, liquid cooling, DC wiring and a grid-forming PCS are built into a single 20-foot unit. It arrives integrated and goes straight onto the foundation.

6058 mm 2896 mm 1 2 3 4
  • 1

    Battery, 5644 kWh

    CATL LFP cells, 530 Ah, in liquid-cooled racks.

  • 2

    Liquid cooling

    One thermal loop for the whole container.

  • 3

    Integrated DC wiring

    Battery and PCS are connected inside the container.

  • 4

    Grid-forming PCS, 2800 kW

    Rated 690 Vac, 50 Hz, installed in the same container.

  • IP55
  • Below 45 t
  • βˆ’30 Β°C to 55 Β°C
  • Up to 4000 m
  • Ethernet communication

Schematic. Container 6058 Γ— 2438 Γ— 2896 mm.

Why all-in-one

Fewer parts. Fewer days on site.

01

It arrives finished

The container is pre-integrated and pre-commissioned. It is delivered ready, so deployment on site is faster.

02

One cabling job less

Integrated DC wiring connects battery and PCS inside the container, so there is no separate DC link to build between them on site.

03

Set up in five steps from your phone

One-touch boot and stop, OTA remote upgrades and a mini-app for commissioning.

04

Same capacity, less land

A 21 % smaller land footprint for the same capacity keeps civil works and O&M simpler.

Delivered to site Pre-integrated and pre-commissioned Battery PCS Separate parts, DC cabling on site All-in-one, DC link inside Mini-app Five steps to start Conventional layout All-in-one, same capacity

CATL original pack, 530 Ah LFP

Large-format LFP cells with a cycle life above 10,000 cycles.

Flexible cluster reduction, AI-powered control

Battery clusters are managed flexibly by AI-powered control.

Use cases

Where a container pays off.

LoadGrid limitFrom battery

Peak shaving

Cut demand peaks and the grid fees tied to them.

01 / 05
SolarConsumptionFrom battery

PV self-consumption

Shift solar output into the evening hours.

02 / 05
PriceAverage priceFrom battery

Time shifting

Charge when power is cheap, use it when it’s expensive.

03 / 05
Grid signalTargetFrom battery

Flexibility and grid services

Respond to grid signals and earn from your flexibility.

04 / 05See a reference
EV chargingGrid limitFrom battery

EV charging support

Charge vehicles without upgrading your grid connection.

05 / 05BESS for EV hubs

Schematic illustrations

Product vs. solution

A container is a product. A working system is a project.

The unit arrives ready. Your site doesn’t. Everything around the container is what we do.

Right sizing

Load and market analysis, so you build the capacity your project needs.

Switchgear & protection

Integration with transformers, switchgear, metering and protection.

Grid connection

Application and coordination with your grid operator.

Permits & fire safety

Permits and fire safety documentation, prepared for you.

The product The container

Battery, grid-forming PCS, liquid cooling and DC wiring in one 20-foot unit. Factory-integrated and pre-commissioned.

EMS setup

Control strategy based on how your project actually earns or saves money.

Site works

Layout, foundations, installation and commissioning on your site.

Local EU service

Service and warranty handling in the EU.

One contract

One responsible partner for the whole system.

What the manufacturer deliversWhat Volthein adds

Choosing the right size

From a cabinet to a container.

The same all-in-one idea, in two scales. Cabinets suit smaller commercial sites, the container is built for megawatt projects.

STAR H-PLUS125 kW cabinet

254.59 kWh

STAR H-MAX220 kW cabinet

440.96 kWh

STAR X2800 kW container

5644 kWh

Nominal energy per unit, drawn to scale. Units can be combined for larger projects.

Cabinet

All-in-One BESS for smaller sites

Compact cabinets for businesses, from 125 kW per unit.

Explore cabinets →
Container Β· this page

All-in-One BESS for large sites

2800 kW and 5644 kWh in one 20-foot container, for industrial and utility-scale projects.

Discuss your project →

Technical specifications

The numbers.

CNTE STAR XOutdoor all-in-one liquid-cooled container

2800kW

Rated power

5644kWh

Nominal energy

530Ah

LFP cell

Liquid

Cooling

IP55

Protection class

βˆ’30…55Β°C

Operating temperature

Show all specificationsHide specifications

Battery

Cell type
LFP
Cell capacity
530 Ah
Nominal energy
5644 kWh
Charge / discharge rate
0.5P / 0.5P

AC

Rated power
2800 kW
Rated voltage
690 Vac
Rated frequency
50 Hz

DC

Rated voltage
1331 Vdc
Voltage range
1165–1497 Vdc

System

Cooling
Liquid cooling
Operating temperature
βˆ’30 Β°C to 55 Β°C (derating above 45 Β°C)
Humidity
0–95 %, non-condensing
Altitude
≀4000 m (derating above 2000 m)
Protection class
IP55
Dimensions (W Γ— D Γ— H)
6058 Γ— 2438 Γ— 2896 mm
Weight
below 45 t
Communication
Ethernet

FAQ

Good to know.

01Who manufactures STAR X?

STAR X is manufactured by CNTE, a battery storage manufacturer backed by CATL and founded by a co-founder of CATL. Volthein sizes, connects and commissions it for your site.

02What grid connection does it have?

The PCS is rated 2800 kW at 690 Vac and 50 Hz. We design the connection to your grid.

03Where can it be installed?

It is an outdoor unit with IP55 protection. It operates from βˆ’30 Β°C to 55 Β°C, with derating above 45 Β°C, and up to 4000 m altitude, with derating above 2000 m.

04Can several containers be combined?

Yes, larger projects are built from several units. TODO: confirm the maximum number of containers in parallel

05Where do you deliver?

We deliver to most countries of the European Union.

Ask us something else →
Start your project

LET’S LOOK AT
YOUR SITE.

Send us your basic consumption data or just tell us about your site. We will tell you whether a STAR X container makes sense for your project and how it would be set up.

Jan Misovic
Jan Misovic
Sales Manager
Talk to our team
We respond within 1 business day.