Managing charging during peak hours at a large office

Enexis

Enexis is a distribution system operator, supplying electricity and natural gas to customers in the provinces of Groningen, Drenthe, Overijssel, North Brabant, and Limburg. They are responsible for constructing, servicing, developing, and operating the electricity and gas grids.

Challenge

Enexis wanted to expand their electric vehicle fleet but encountered infrastructure constraints at their office headquarters. When the building consumed its peak electric load, less electricity was available for charging electric vehicles. Enexis wanted a solution where they could maximize available charging potential outside the peak, only restricting charging station loads during the lunch peak.

Solution

GreenFlux came up with a solution that optimizes utilization of the electric supply capacity. The GreenFlux EV charging platform performs dynamic load balancing functionality together with an online metering platform. The metering platform provides actual energy consumption of the building, and the GreenFlux Platform processes this information for load balancing. As a result, electric vehicles are charged intelligently; reducing the load on the power grid while allowing drivers to consistently leave with full batteries.

Result

The result is that on the same grid connection, 10 times more chargers can be installed. Our experience shows that by applying dynamic load balancing, the maximum number of charge points that can be installed on one location is up to 10 times higher than in the case of uncontrolled charging. For this reason, additional investment to increase the grid capacity is not necessary. Moreover, by using guest charging, the return of investment on infrastructure will be 5 times quicker than without.