Application of a Simplified Thermal-Electric Model of a Sodium-Nickel Chloride Battery Energy Storage System to a Real Case Residential Prosumer

Fabio Bignucolo, Massimiliano Coppo, Giorgio Crugnola and Andrea Savio
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Fabio Bignucolo: Department of Industrial Engineering, University of Padova, 35131 Padova, Italy
Massimiliano Coppo: Department of Industrial Engineering, University of Padova, 35131 Padova, Italy
Giorgio Crugnola: FZSONICK SA, Via Laveggio 15, 6855 Stabio, Switzerland
Andrea Savio: Department of Industrial Engineering, University of Padova, 35131 Padova, Italy

Energies, 2017, vol. 10, issue 10, 1-29

Abstract: Recently, power system customers have changed the way they interact with public networks, playing a more and more active role. End-users first installed local small-size generating units, and now they are being equipped with storage devices to increase the selfconsumption rate. By suitably managing local resources, the provision of ancillary services and aggregations among several end-users are expected evolutions in the near future. In the upcoming market of household-sized storage devices, sodium-nickel chloride technology seems to be an interesting alternative to lead-acid and lithium-ion batteries. To accurately investigate the operation of the NaNiCl 2 battery system at the residential level, a suitable thermoelectric model has been developed by the authors, starting from the results of laboratory tests. The behavior of the battery internal temperature has been characterized. Then, the designed model has been used to evaluate the economic profitability in installing a storage system in the case that end-users are already equipped with a photovoltaic unit. To obtain realistic results, real field measurements of customer consumption and solar radiation have been considered. A concrete interest in adopting the sodiumnickel chloride technology at the residential level is confirmed, taking into account the achievable benefits in terms of economic income, back-up supply, and increased indifference to the evolution of the electricity market.

Keywords: NaNiCl 2 batteries; photovoltaic generation; residential end-users; self-consumption; sodium-nickel chloride technology; techno-economic analysis (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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