Roadmap for the next-generation of hybrid photovoltaic-thermal solar energy collectors

Mellor, A. et al. (2018) Roadmap for the next-generation of hybrid photovoltaic-thermal solar energy collectors. Solar Energy, 174, pp. 386-398. (doi:10.1016/j.solener.2018.09.004)

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Abstract

For hybrid photovoltaic-thermal collectors to become competitive with other types of solar energy converters, they must offer high performance at fluid outlet temperatures above 60 °C, as is required for space heating and domestic hot water provision, which together account for nearly 50% of heat demand. A roadmap is presented of the technological advances required to achieve this goal. Strategies for reducing convective, radiative and electrical losses at elevated temperature are discussed, and an experimental characterisation of a novel transparent low-emissivity coating for photovoltaic solar cells is presented. An experimentally-validated simulation formalism is used to project the performance of different combinations of loss-reduction strategies implemented together. Finally, a techno-economic analysis is performed to predict the price points at which the hybrid technologies along the roadmap become competitive with non-hybrid photovoltaic and solar thermal technologies. The most advanced hybrid technology along the roadmap employs an evacuated cavity, a transparent low-emissivity coating, and silicon heterojunction photovoltaic cells.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Ferre Llin, Dr Lourdes and Paul, Professor Douglas
Authors: Mellor, A., Alonso Alvarez, D., Guarracino, I., Ramos, A., Riverola Lacasta, A., Ferre Llin, L., Murrell, A.J., Paul, D.J., Chemisana, D., Markides, C.N., and Ekins-Daukes, N.J.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Solar Energy
Publisher:Elsevier
ISSN:0038-092X
ISSN (Online):1471-1257
Published Online:20 September 2018
Copyright Holders:Copyright © 2018 The Authors
First Published:First published in Solar Energy 174: 386-398
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
688481Plasmonic PhotovoltaicsDouglas PaulEngineering and Physical Sciences Research Council (EPSRC)EP/M025012/1ENG - ENGINEERING ELECTRONICS & NANO ENG