Stuart EMS
Stuart EMS watches your site second by second and decides what charges, what discharges and what waits — so your peak stays under the connection limit and your energy bill stops surprising you.
One controller for the whole site
Battery, PV inverters, EV chargers and the grid meter are all read and controlled from one place. No spreadsheets, no manual setpoints, no guessing which asset caused the peak.
Peak shaving on autopilot
The EMS forecasts your load, holds state of charge in reserve for the busy window and discharges exactly enough to keep you under the connection limit you pay for.
Live dashboard and alarms
Power, energy, state of charge, temperatures and faults in real time, with history you can export. Alarms reach your phone before the site notices.
What it actually changes
Four things a site with an EMS does that a site without one cannot.
Stay under the connection limit
Avoid the grid upgrade, the DSO queue and the capacity charge that comes with a bigger connection.
Use your own solar first
Surplus PV goes into the battery and the chargers instead of back to the grid at export prices.
Charge when power is cheap
Day-ahead prices drive the schedule, so the battery fills in the cheap hours and covers the expensive ones.
Proof for the accountant
Metered, exportable records of every kWh shifted — the payback is measured, not estimated.
Licensed per site, per year
One licence covers the whole site, whatever is connected to it. Multi-site fleets are quoted together.
- feature 1
- feature 2
- feature 3
- feature 4
- feature 5
- feature 1
- feature 2
- feature 3
- feature 4
- feature 5
- feature 6
- feature 7
- feature 1
- feature 2
- feature 3
- feature 4
- feature 5
- feature 6
- feature 7
- feature 8
- feature 9
Questions? We’ve got answers.
Most systems are installed and commissioned within 1–2 weeks, depending on site conditions and grid requirements.
Yes. All Stuart ESS units support modular expansion through parallel connection. Start with one unit and add capacity as your needs grow.
Every unit includes advanced protection such as liquid or air cooling, fire suppression, and IP-rated enclosures for reliable operation indoors or outdoors.
Our team assists with installation, grid integration, and ongoing technical support to keep your system running smoothly.
Stuart ESS units are ideal for self-use, peak shaving, backup power, EV charging integration, and utility-scale grid support.
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.
.webp)
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.
Hybrid Solar ESS Cabinet
An all-in-one cabinet with battery, inverter, HVAC, and safety built in — delivering peak shaving, backup power, and energy independence without taking over your space.
.webp)
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.
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.