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Optimized Energy Management of a Solar and Wind Equipped Student Residence with an Innovative Hybrid Energy Storage System

Palaniswamy, Lakshimi Narayanan ORCID iD icon 1; Munzke, Nina ORCID iD icon 1; Kupper, Christian ORCID iD icon 1; Hiller, Marc 1
1 Elektrotechnisches Institut (ETI), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

Grid-connected Energy Storage Systems (ESS) are vital for transforming the current energy sector. Lithium-Ion Battery (LIB) technology is presently the most popular form of ESS, especially because of its fast response capability, efficiency, and reducing market prices, but is not always preferred for long-term storage, due to its relatively shorter lifetime. A Redox Flow Battery (RFB) on the other hand has a higher lifetime and better long-term storage capability, but has a higher upfront cost and reduced round trip efficiency. A Hybrid ESS (HESS) consisting of LIB and RFB offers the advantages of both technologies, thus making the ESS more economical and flexible to use while also improving the cycle lifetime of individual ESS. Such a grid-connected HESS is planned and installed for a student residence at Bruchsal having 126 apartments for 150 students and equipped with 220 kWp photovoltaics and 10.5 kWp wind-power. Real-time high-resolution data of the residence’s electrical load and energy generation are collected and used to optimally control the HESS. Additionally, the RFB is also used as heat storage, which supports partial heating requirements of the residence.
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Volltext §
DOI: 10.5445/IR/1000151150
Veröffentlicht am 14.11.2022
Cover der Publikation
Zugehörige Institution(en) am KIT Elektrotechnisches Institut (ETI)
Publikationstyp Vortrag
Publikationsdatum 22.09.2022
Sprache Englisch
Identifikator KITopen-ID: 1000151150
HGF-Programm 37.12.02 (POF IV, LK 01) Design,Operation & Digitalization of the Future Energy Grids
Veranstaltung 16 International Renewable Energy Storage and Systems Conference (IRES 2022 2022), Düsseldorf, Deutschland, 20.09.2022 – 22.09.2022
Projektinformation BiFlow (BMWK, 03EI3025A)
Schlagwörter stationary energy storage, grid-connected, hybrid energy storage, lithium-ion, vanadium redox-flow, optimization, power-to-heat
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