A Zn↔ZnO loop for terawatt-scale storage of solar electricity

Meng Tao

doi:10.1109/PVSC.2016.7749981

A Zn↔ZnO loop for terawatt-scale storage of solar electricity

Meng Tao

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

In this paper an alternative to battery storage of solar electricity is proposed, in which storage and generation are performed by two separate devices. Storage is realized in an electrolytic cell which reduces a metal oxide to metal through solar electricity, and the produced metal anode generates electricity on demand in a metal/air battery. By separating storage and generation, this approach allows centralized storage and distributed generation with distributed optional grid connectivity. The theoretical performance is calculated for many metal↔metal oxide cycles. Based on material abundance, theoretical performance, process simplicity and technical readiness, the Zn↔ZnO cycle is proposed for this closed sustainable energy loop. The amount of Zn required for terawatt-scale storage of solar electricity is estimated.

Original language	English (US)
Title of host publication	2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2011-2014
Number of pages	4
ISBN (Electronic)	9781509027248
DOIs	https://doi.org/10.1109/PVSC.2016.7749981
State	Published - Nov 18 2016
Event	43rd IEEE Photovoltaic Specialists Conference, PVSC 2016 - Portland, United States Duration: Jun 5 2016 → Jun 10 2016

Publication series

Name	Conference Record of the IEEE Photovoltaic Specialists Conference
Volume	2016-November
ISSN (Print)	0160-8371

Other

Other	43rd IEEE Photovoltaic Specialists Conference, PVSC 2016
Country	United States
City	Portland
Period	6/5/16 → 6/10/16

Keywords

electrochemical processes
energy storage
photovoltaic systems
zinc

ASJC Scopus subject areas

Control and Systems Engineering
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

Access to Document

10.1109/PVSC.2016.7749981

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A Zn↔ZnO loop for terawatt-scale storage of solar electricity. / Tao, Meng.

2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016. Institute of Electrical and Electronics Engineers Inc., 2016. p. 2011-2014 7749981 (Conference Record of the IEEE Photovoltaic Specialists Conference; Vol. 2016-November).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Tao, M 2016, A Zn↔ZnO loop for terawatt-scale storage of solar electricity. in 2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016., 7749981, Conference Record of the IEEE Photovoltaic Specialists Conference, vol. 2016-November, Institute of Electrical and Electronics Engineers Inc., pp. 2011-2014, 43rd IEEE Photovoltaic Specialists Conference, PVSC 2016, Portland, United States, 6/5/16. https://doi.org/10.1109/PVSC.2016.7749981

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abstract = "In this paper an alternative to battery storage of solar electricity is proposed, in which storage and generation are performed by two separate devices. Storage is realized in an electrolytic cell which reduces a metal oxide to metal through solar electricity, and the produced metal anode generates electricity on demand in a metal/air battery. By separating storage and generation, this approach allows centralized storage and distributed generation with distributed optional grid connectivity. The theoretical performance is calculated for many metal↔metal oxide cycles. Based on material abundance, theoretical performance, process simplicity and technical readiness, the Zn↔ZnO cycle is proposed for this closed sustainable energy loop. The amount of Zn required for terawatt-scale storage of solar electricity is estimated.",

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note = "Funding Information: This work is supported by National Science Foundation under grant numbers DMR-1306542 and CBET-1336297. Publisher Copyright: {\textcopyright} 2016 IEEE. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.; 43rd IEEE Photovoltaic Specialists Conference, PVSC 2016 ; Conference date: 05-06-2016 Through 10-06-2016",

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