Modeling of a Fuel Cell - Battery Hybrid System for Optimal Design of Base Transceiver Station Power Supply

Telecom sector has been having an evident worldwide growth, either in infrastructure or in recent technological advances. Nowadays, already existent radio-base stations connected to the grid are characterized by unidirectional power flow in order to supply telecom and ancillary loads. Telecom companies worldwide are investigating in energy savings actions. Among them, the option of producing onsite the power needed for supplying Radio Base Station and Datacenters, placed in, by means new generation power technologies aims at reducing the overall environmental impact. In the framework of the ONSITE project (financed by FCH JU, Grant No. 325325, www. onsite - project .eu ), an innovative Proof of Concept (PoC) is under development to achieve high efficiency power generation, by integrating Solid Oxide Fuel Cells (SOFCs) and Sodium Nickel Chloride (SNC) batteries to generate on-site electricity and to optimize the energy flows (including heat and cold), for Radio Base Station and Datacenters. The developed models implement a new method to represent a SNC battery and allow the study and design of integrated solutions for the above mentioned power supply systems.