The purpose of this study is to analyze the performance and the behavior of a ReSOC energy system used as electrical energy storage unit in a hybrid renewable power plant. The plant and its components have been designed and sized in order to satisfy the energy demand of a radio base station located in a remote area. A sensitivity analysis based on the PV power system size has been performed to define the optimal size of the hybrid plant components; thus, once assigned the PV size, the reciprocating engine and the ReSOC have been defined and, as a consequence, the energy storage efficiency and the fossil fuel energy saving have been calculated. Results show that a PV power system of 17 kWp allows to operate with full renewable source, saving about 8 tons of fossil fuel (Diesel). However, it can affirm that a good compromise, in terms of components size and fuel consumption is reached for PV sizes ranging from 9 to 11 kWp in which the FES varies between 60 and 70%. The ReSOC efficiency is about 0.50 that is a very good value in comparison with the efficiencies of the other energy storage technologies.
Investigations on an energy storage system based on high temperature fuel cells for an off-grid renewable power plant
PERNA, Alessandra;
2015-01-01
Abstract
The purpose of this study is to analyze the performance and the behavior of a ReSOC energy system used as electrical energy storage unit in a hybrid renewable power plant. The plant and its components have been designed and sized in order to satisfy the energy demand of a radio base station located in a remote area. A sensitivity analysis based on the PV power system size has been performed to define the optimal size of the hybrid plant components; thus, once assigned the PV size, the reciprocating engine and the ReSOC have been defined and, as a consequence, the energy storage efficiency and the fossil fuel energy saving have been calculated. Results show that a PV power system of 17 kWp allows to operate with full renewable source, saving about 8 tons of fossil fuel (Diesel). However, it can affirm that a good compromise, in terms of components size and fuel consumption is reached for PV sizes ranging from 9 to 11 kWp in which the FES varies between 60 and 70%. The ReSOC efficiency is about 0.50 that is a very good value in comparison with the efficiencies of the other energy storage technologies.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
