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Energies 2017, 10(7), 835; doi:10.3390/en10070835

Economic Optimization of Component Sizing for Residential Battery Storage Systems

1
Department of Electrical and Computer Engineering, Technical University of Munich (TUM), 80333 Munich, Germany
2
Electrical and Computer Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada
3
Electrical Engineering and Computer Science, VSB-Technical University Ostrava, 70800 Ostrava, Czech Republic
*
Author to whom correspondence should be addressed.
Academic Editor: Haolin Tang
Received: 7 May 2017 / Revised: 6 June 2017 / Accepted: 12 June 2017 / Published: 22 June 2017
(This article belongs to the Section Energy Storage and Application)
View Full-Text   |   Download PDF [1536 KB, uploaded 27 June 2017]   |  

Abstract

Battery energy storage systems (BESS) coupled with rooftop-mounted residential photovoltaic (PV) generation, designated as PV-BESS, draw increasing attention and market penetration as more and more such systems become available. The manifold BESS deployed to date rely on a variety of different battery technologies, show a great variation of battery size, and power electronics dimensioning. However, given today’s high investment costs of BESS, a well-matched design and adequate sizing of the storage systems are prerequisites to allow profitability for the end-user. The economic viability of a PV-BESS depends also on the battery operation, storage technology, and aging of the system. In this paper, a general method for comprehensive PV-BESS techno-economic analysis and optimization is presented and applied to the state-of-art PV-BESS to determine its optimal parameters. Using a linear optimization method, a cost-optimal sizing of the battery and power electronics is derived based on solar energy availability and local demand. At the same time, the power flow optimization reveals the best storage operation patterns considering a trade-off between energy purchase, feed-in remuneration, and battery aging. Using up to date technology-specific aging information and the investment cost of battery and inverter systems, three mature battery chemistries are compared; a lead-acid (PbA) system and two lithium-ion systems, one with lithium-iron-phosphate (LFP) and another with lithium-nickel-manganese-cobalt (NMC) cathode. The results show that different storage technology and component sizing provide the best economic performances, depending on the scenario of load demand and PV generation. View Full-Text
Keywords: battery energy storage system; battery aging; linear programming; size optimization; Lithium-Ion battery; cost analysis; photovoltaic panel; economic analysis; residential battery battery energy storage system; battery aging; linear programming; size optimization; Lithium-Ion battery; cost analysis; photovoltaic panel; economic analysis; residential battery
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Hesse, H.C.; Martins, R.; Musilek, P.; Naumann, M.; Truong, C.N.; Jossen, A. Economic Optimization of Component Sizing for Residential Battery Storage Systems. Energies 2017, 10, 835.

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