Case Study


EV Charging capacity support + grid support


To facilitate the introduction of a fleet of 150 electric delivery vehicles, Ingenium Plus provides capacity support to a parcel delivery depot. In addition, the asset also provides a range of grid support services.


The challenge


The incoming supply to the depot has insufficient capacity to support the energy needs presented by the addition of the charging demands of the vehicles. The cost and timescales relating to upgrade of the incomer were prohibitive. A smart management system has been developed to regulate the demands of the connected vehicles in order to minimise peak demand. This, however, still leaves a deficit in available capacity that is covered by the Ingenium Plus U-BESS.




System configuration


The installed system comprises remote monitoring of the incoming supply at the sub station that is relayed by a wireless link to the EMS located within the depot compound. This information is combined with local monitoring that is processed by the EMS. The Smart charging system communicates with the EMS to provide requests for energy support during periods of peak demand.


Upon receiving requests from the Smart Charging System, the EMS controls the U-BESS to make energy available to support the depot. Once the period of peak activity has passed, the EMS is released from depot control and able to recharge from the available grid supply.


Once replenished to a pre-requisite level, the U-BESS is then available to provide grid support services as may be required by the network.


Operating modes


The system has three specific operating modes; automatic load leveling for depot support, local operation for quiescent sate (e.g. maintenance or capacity re-charging) and remote mode for delivery of grid support services.


The active operating mode is controlled by the EMS and the modes are given priority such that the depot “automatic” mode gets priority over remote operation. If the system has insufficient stored capacity or is unavailable because of maintenance needs, the local control mode is active until the system is again made available for providing services to the depot or back into the distribution network.


Optimised benefits


By designing in value layers, the system can be manipulated to provide maximum benefits and so ensure the asset is able to achieve best possible economic return.


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