Utility-Scale ESS (High-Density, 5 MWh)

5 MWh storage. 32% smaller footprint.

The JAGalaxy 2.5 MW / 5 MWh liquid-cooled ESS combines massive capacity with advanced cooling and rack-level management — delivering maximum efficiency and safety for grid-scale projects.

Multi-megawatt storage without compromise

The JAGalaxy 5 MWh ESS delivers 2.5 MW output with liquid-cooled LFP batteries, advanced fire suppression, and rack-level management. With a 32% smaller footprint and up to 49% higher energy density than previous systems, it’s optimized for utilities and large-scale industrial projects demanding space efficiency and reliability.

Core performance

5.015 MWh storage, 2.508 MW power, ≥93% efficiency, intelligent rack-level control.

Safety & reliability

IP54 battery compartment, intelligent liquid cooling, pack + container-level fire suppression, and cloud-based monitoring.

Key benefits

Why choose JAGalaxy 5 MWh?

The highest-density, most space-efficient ESS in the lineup.

Massive utility-scale power

5.015 MWh storage with 2.5 MW output for large-scale energy projects.

32% smaller footprint

Smart single-side access and layout design save valuable site space.

Intelligent liquid cooling

Rack-level management keeps cells within ±3°C for optimal performance.

Maximum reliability

Cloud monitoring, advanced fire suppression, and fault-handling automation.

Pricing

JAGalaxy utility-scale ESS (5 MWh)

2.5 MW / 5 MWh liquid-cooled system with high efficiency and compact footprint for grid-scale projects.

Total investment
One clear price for the complete solution.
€906,800
Key product specs:
Power capacity
2.508 MW
Energy capacity
5.015 MWh
C-rate
0.5C
Cycle life
6000+
Battery cell type
LFP
Temperature range
-20°C to +55°C
IP rating
IP54 (battery compartment)
Dimensions & weight
6058 × 2438 × 2896 mm / 42.5 t
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FAQ

Questions? We’ve got answers.

How long does installation take?

Most systems are installed and commissioned within 1–2 weeks, depending on site conditions and grid requirements.

Can the system be expanded later?

Yes. All Stuart ESS units support modular expansion through parallel connection. Start with one unit and add capacity as your needs grow.

Are these systems safe?

Every unit includes advanced protection such as liquid or air cooling, fire suppression, and IP-rated enclosures for reliable operation indoors or outdoors.

What support is provided after purchase?

Our team assists with installation, grid integration, and ongoing technical support to keep your system running smoothly.

What applications are these systems best for?

Stuart ESS units are ideal for self-use, peak shaving, backup power, EV charging integration, and utility-scale grid support.

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Energy systems built for your world

Whether you're powering a factory, running a business, or expanding EV fleet — Stuart has the hardware to match your energy goals.

€419,540

Utility-scale ESS (Liquid-cooled, 2 MWh)

The JAGalaxy ESS delivers 1000 kW / 2150 kWh in a containerized liquid-cooled system — designed for grid support, peak shaving, and large-scale industrial backup.

€35,800

C&I Energy Storage System

A powerful 125 kW cabinet with liquid cooling, intelligent fire protection, and modular scalability — built for commercial and industrial energy optimization.

€906,800

Utility-Scale ESS (High-Density, 5 MWh)

The JAGalaxy 2.5 MW / 5 MWh liquid-cooled ESS combines massive capacity with advanced cooling and rack-level management — delivering maximum efficiency and safety for grid-scale projects.

Still on the fence?

Let’s talk power, savings, and setup

Whether you’ve got questions or need a second opinion — we’ll walk you through it, no pressure.