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Classification, potential role, and modeling of power-to-heat and thermal energy storage in energy systems: A review

Year of publication

2022

Authors

Maruf, Md Nasimul Islam; Morales-España, Germán; Sijm, Jos; Helistö, Niina; Kiviluoma, Juha

Abstract

<p>Most of the power-to-heat and thermal energy storage technologies are mature and impact the European energy transition. However, detailed models of these technologies are usually very complex, making it challenging to implement them in large-scale energy models, where simplicity, e.g., linearity and appropriate accuracy, are desirable due to computational limitations. In the literature, the main power-to-heat and thermal energy storage technologies across all sectors have not been clearly identified and characterized. Their potential roles have not been fully discussed from the European perspective, and their mathematical modeling equations have not been presented in a compiled form. This paper contributes to the research gap in three main parts. First, it identifies and classifies the major power-to-heat and thermal energy storage technologies that are climate-neutral, efficient, and technologically matured to supplement or substitute the current fossil fuel-based heating. The second part presents the technology readiness levels of the identified technologies and discusses their potential role in a sustainable European energy system. The third part presents the mathematical modeling equations for the technologies in large-scale optimization energy models. We identified electric heat pumps, electric boilers, electric resistance heaters, and hybrid heating systems as the most promising power-to-heat options. We grouped the most promising thermal energy storage technologies under four major categories. Low-temperature electric heat pumps, electric boilers, electric resistance heaters, and sensible and latent heat storage show high technology readiness levels to facilitate a large share of the heat demand. Finally, the mathematical formulations capture the main effects of the identified technologies.</p>
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Organizations and authors

VTT Technical Research Centre of Finland Ltd

Kiviluoma Juha Orcid -palvelun logo

Helistö Niina Orcid -palvelun logo

Publication type

Publication format

Article

Parent publication type

Journal

Article type

Original article

Audience

Scientific

Peer-reviewed

Peer-Reviewed

MINEDU's publication type classification code

A1 Journal article (refereed), original research

Publication channel information

Volume

53

Issue

Part B

Article number

102553

​Publication forum

86469

​Publication forum level

1

Open access

Open access in the publisher’s service

Yes

Open access of publication channel

Partially open publication channel

License of the publisher’s version

CC BY

Self-archived

No

Other information

Fields of science

Mechanical engineering; Environmental engineering

Keywords

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Language

English

International co-publication

Yes

Co-publication with a company

No

DOI

10.1016/j.seta.2022.102553

The publication is included in the Ministry of Education and Culture’s Publication data collection

Yes