Dispatchability, Energy Security, and Reduced Capital Cost in Tidal-Wind and Tidal-Solar Energy Farms

Peter Osman, Jennifer A. Hayward, Irene Penesis, Philip Marsh, Mark A. Hemer, David Griffin, Saad Sayeef, Jean-Roch Nader, Remo Cossu, Alistair Grinham, Uwe Rosebrock and Mike Herzfeld
Additional contact information
Peter Osman: CSIRO Energy, Bradfield Rd., West Lindfield, NSW 2070, Australia
Jennifer A. Hayward: CSIRO Energy, CSIRO Energy Centre, Newcastle, NSW 2304, Australia
Irene Penesis: Australian Maritime College, University of Tasmania, Launceston, TAS 7250, Australia
Philip Marsh: Australian Maritime College, University of Tasmania, Launceston, TAS 7250, Australia
Mark A. Hemer: CSIRO Oceans and Atmosphere, Battery Point, TAS 7004, Australia
David Griffin: CSIRO Oceans and Atmosphere, Battery Point, TAS 7004, Australia
Saad Sayeef: CSIRO Energy, CSIRO Energy Centre, Newcastle, NSW 2304, Australia
Jean-Roch Nader: Australian Maritime College, University of Tasmania, Launceston, TAS 7250, Australia
Remo Cossu: School of Civil Engineering, University of Queensland, St. Lucia, QLD 4072, Australia
Alistair Grinham: School of Civil Engineering, University of Queensland, St. Lucia, QLD 4072, Australia
Uwe Rosebrock: CSIRO Oceans and Atmosphere, Battery Point, TAS 7004, Australia
Mike Herzfeld: CSIRO Oceans and Atmosphere, Battery Point, TAS 7004, Australia

Energies, 2021, vol. 14, issue 24, 1-28

Abstract: 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.

Keywords: capital expenditure; dispatchability; energy storage; intermittent renewable energy; marine energy; solar energy; tidal energy; variable renewable energy; wind energy; complementarity (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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