Run the numbers before you run the cables
Use this free calculator to size your EV park, estimate daily electricity costs, and simulate the impact of PV, batteries, and grid output. No guesswork needed.
Want to turn your numbers into a real plan?
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.
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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.
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Utility-Scale ESS (Air-Cooled, 1 MWh)
The JAGalaxy ESS delivers 500 kW / 1075 kWh of storage in a walk-in containerized system — engineered for peak shaving, backup power, and large-scale energy management.
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.
Want a done-for-you plan?
We help you turn estimates into action. From energy modeling to rollout, Stuart makes your EV setup work at scale.