We do not start with the sum of the chargers' power ratings.
What matters is the number of vehicles charging at the same time, the energy required, the arrival time and the departure time. The rated power of a charging station does not mean that the vehicle will charge at that power throughout the process.
For a fleet that stays connected overnight, being charged by the morning departure can matter more than immediate charging at maximum power.
Control first. Then further technology.
Smart charging control distributes the available power according to the needs of the vehicles and other consumption. If it solves the problem on its own, a large battery may not be needed.
BESS can supplement power during intervals when control alone is not enough. However, it must have enough energy and the opportunity to prepare for the next use.
A shared battery can also serve the building.
For larger premises, we look at shared storage for several charging points, photovoltaics, the building and other loads. This way the energy technologies do not have to be designed in isolation.
If vehicles charge during the day, they can use photovoltaics directly. When they return in the evening, the battery can shift part of the daytime generation to later. The total energy, however, still has to come from the grid or own generation.
We also plan for fleet growth.
We assess today's needs as well as the planned expansion. We compare managed charging, BESS, a grid connection upgrade and a combined solution.
EMS – Energy Management System can coordinate charging together with the rest of the site's energy system within the available technical possibilities.