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Medium-term variability of the UK's combined tidal energy resource for a net-zero carbon grid

Grazia Todeschini, D. Coles, M. Lewis, I. Popov, A. Angeloudis, Iain Fairley, F. Johnson, Alison Williams Orcid Logo, P. Robins, Ian Masters Orcid Logo

Energy, Volume: 238, Start page: 121990

Swansea University Authors: Grazia Todeschini, Iain Fairley, Alison Williams Orcid Logo, Ian Masters Orcid Logo

  • Accepted Manuscript under embargo until: 6th September 2022

Abstract

The small area of the United Kingdom relative to weather systems makes renewable energy sources variable on short time scales. Short term variability is therefore a growing concern with increasing amounts of renewable energy integration. In this work, we address how tidal energy can contribute to re...

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Published in: Energy
ISSN: 0360-5442
Published: Elsevier BV 2022
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa58055
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Abstract: The small area of the United Kingdom relative to weather systems makes renewable energy sources variable on short time scales. Short term variability is therefore a growing concern with increasing amounts of renewable energy integration. In this work, we address how tidal energy can contribute to reducing medium-term variability in the future UK energy mix. Two tidal integration scenarios are defined for 2050: for each scenario, a 5-min interval generation profile is calculated using an oceanographic model of UK tides, and the medium-term variability is assessed. Here we show that tidal power shows a lower level of variability compared to other resources. During spring tides, a national network of tidal power stations can produce continuous, although variable, electricity. It is then shown that tidal energy and storage can provide year-round continuous and constant power output, i.e. baseload generation. Therefore, we conclude that tidal energy can provide positive contributions and complement other renewable energy sources.
Keywords: Tidal energy, Renewable energy sources, Grid integration, Energy storage
College: College of Engineering
Start Page: 121990