DEMONSTRATION OF RESERVE MARKET OPERATION AND LOCAL FLEXIBILITY IN A SMART OFFICE ENVIRONMENT

The paper discusses the potential of small-scale assets, i.e., electric vehicle (EV) charging stations and a battery energy storage system (BESS), to provide power system services. The paper presents results of the real environment flexibility demonstrations in a smart office environment. The results of the flexibility tests of EV charging stations indicate that there might be challenges to meet the technical requirements of the FCR-D market. The business potential of the EV charging stations aggregation to the reserve markets is low in the studied case. However, it is expected that in the future, there will be a significant flexibility potential in the EV charging network. The BESS provided peak power shaving, reactive power compensation, and FCR-N control reliably during the demonstration period. Peak power shaving and reactive power compensation support the operation of the local distribution grid, and the service provision of FCR-N supports the operation of the power system. An operation strategy of the BESS that combines peak power shaving, reactive power compensation and FCR-N operation was presented. However, the optimal operation strategy of the demonstrated BESS depends on many factors, especially on power demand of the building, power tariffs and the prices of the FCR-N market.