Dispatchability, energy security, and reduced capital cost in tidal-wind and tidal-solar energy farms
journal contributionposted on 2023-05-21, 11:45 authored by Osman, P, Hayward, JA, Irene PenesisIrene Penesis, Philip MarshPhilip Marsh, Hemer, MA, Griffin, D, Sayeef, S, Jean-Roch NaderJean-Roch Nader, Remo Cossu, Grinham, A, Rosebrock, U, Herzfeld, M
The global tidal energy resource for electricity generation is small, and converting tidal kinetic energy to electricity is expensive compared to solar-photovoltaic or land-based wind turbine generators. However, as the renewable energy content in electricity supplies grows, the need to stabilise these supplies increases. This paper describes tidal energy's potential to reduce intermittency and variability in electricity supplied from solar and wind power farms while lowering the capital expenditure needed to improve dispatchability. The paper provides a model and hypothetical case studies to demonstrate how sharing energy storage between tidal stream power generators and wind or solar power generators can mitigate the level, frequency, and duration of power loss from wind or solar PV farms. The improvements in dispatchability use tidal energy's innate regularity and take account of tidal asymmetry and extended duration low-velocity neap tides. The case studies are based on a national assessment of Australian tidal energy resources carried out from 2018 to 2021.
Department/SchoolAustralian Maritime College
Place of publicationSwitzerland
Rights statementCopyright 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/4.0/)