The situation
How one EMS takes control of charging stations, battery storage, and energy trading at Nagel Transport’s depot. Without a fleet management system.
Key challenges
The customer was dealing with multiple systems, each optimizing for its own objective. A trader managing the battery without an FMS, and an EMS monitoring the grid connection. No one had oversight of the complete system.
There was no compatible Fleet Management System or Transport Management System available. Yet vehicles still needed to be charged reliably and on time, with different priorities assigned to each charger and vehicle.
The customer wanted to benefit from favorable electricity prices and ERE trading, without compromising operations. The battery had to be used intelligently while ensuring charging reliability was never at risk.
"Once you add a battery and start trading on the energy market, you suddenly have three parties with different objectives competing for the same grid connection. Zympler is the only solution that sees and manages it as one integrated system."
Nagel and Zympler
Monitoring grid connection capacity
The hard limit. The grid connection is never exceeded, regardless of what else is happening. This prevents penalties, grid issues, and unexpected peaks.
Guaranteeing charging sessions
Vehicles are charged within the required timeframes. Not every vehicle has the same priority, so Zympler allows priorities to be configured per charger or vehicle group. Vehicles with earlier departure times automatically receive priority.
Energiekosten minimaliseren
Only once priorities 1 and 2 are met is the remaining flexibility used to reduce energy costs: buying energy at favorable dynamic tariffs, intelligently charging and discharging the battery, and trading on the ERE market.
Why are Zympler and Nagel
a match?
The customer now has one system that monitors the grid connection, guarantees charging sessions, and actively optimizes energy costs, including ERE market trading through the battery. The complexity of multiple disconnected systems has disappeared. No FMS is required as a starting point.
The result:
No exceeding of grid connection limits.
Vehicles charge on time, with the right priority settings.
Lower energy costs through purchasing at favorable moments and actively using the battery for ERE market trading.
A scalable foundation: when the fleet expands or an FMS is connected, the system scales without requiring a redesign.
With Zympler, Nagel can turn hyper-local smart charging into measurable value.
