Techno-economic assessment and optimization of the energy storage unit in the distribution network

The paper present results from the techno-economic assessment and optimization of an energy storage unit located in the mid-voltage distribution grid. The size and location of the unit are selected based on the predefined list of requirements and available locations. A second order cone programming optimization algorithm is applied to asses the installed capacity and all the results are validated against the voltage and loading limits with the power-flow calculations. The approach is described through a case-study example in which the potential benefits and optimal daily operation schedule are also shown in order to achieve additional welfare increase through the losses reduction and potential ancillary services provision.