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Evaluation of the efficiency and resulting electrical and economic losses of photovoltaic home storage systems

Munzke, Nina ORCID iD icon 1; Schwarz, Bernhard 1; Büchle, Felix 1; Hiller, Marc 1
1 Karlsruher Institut für Technologie (KIT)


The increase in electricity prices along with a decrease in the price of storage systems has led to a rapid expansion of the photovoltaic (PV) home storage system market, particularly in Germany. In order to be economically viable, PV home storage systems must fulfil certain performance criteria. The overall performance and achievable self-sufficiency ratio of a PV battery home storage system depends on (i) the efficiencies of the system components, (ii) the standby consumption, (iii) the reaction time of the home storage system as well as (iv) the intelligence of the overall system control software. So far, PV home storage system still show very big differences in their performance. However, poor system performance can result in the system being no longer economic viable. Up to now, there have been only a few studies that deal with the evaluation and systematic comparison of the performance of PV home storage systems. For this paper the performance of 12 commercially available PV-battery systems has been analysed with a focus on the overall system efficiency. The efficiency of the systems is mainly influenced by the battery efficiency, power conversion efficiency and standby consumption of the different system components. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000127723
Veröffentlicht am 16.12.2020
DOI: 10.1016/j.est.2020.101724
Zitationen: 8
Web of Science
Zitationen: 5
Zitationen: 8
Cover der Publikation
Zugehörige Institution(en) am KIT Elektrotechnisches Institut (ETI)
Karlsruher Institut für Technologie (KIT)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 01.2021
Sprache Englisch
Identifikator ISSN: 2352-152X
KITopen-ID: 1000127723
HGF-Programm 38.02.03 (POF IV, LK 01) Batteries in Application
Erschienen in Journal of energy storage
Verlag Elsevier
Band 33
Seiten Art. Nr.: 101724
Nachgewiesen in Web of Science
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