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Article

At What Cost Can Renewable Hydrogen Offset Fossil Fuel Use in Ireland’s Gas Network?

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Mechanical Engineering, Alice Perry Engineering Building, National University of Ireland Galway, Galway H91 HX31, Ireland
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Ryan Institute for Marine, Environmental and Energy Research, National University of Ireland Galway, Galway H91 TK33, Ireland
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MaREI, the SFI Research Centre for Energy, Climate and Marine, Environmental Research Institute, Beaufort Building, University College Cork, Cork P43 C573, Ireland
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Center for Electric Power and Energy (CEE), Department of Electrical Engineering, Technical University of Denmark (DTU), 2800 Kgs. Lyngby, Denmark
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Coillte CGA, Dublin Road, Wicklow A63 DN25, Ireland
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Network Services Centre, Gas Networks Ireland, Dublin 11 D11 Y895, Ireland
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Mechanical & Manufacturing Engineering, DCU Glasnevin Campus, Dublin City University, Dublin 9 D09 V209, Ireland
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Author to whom correspondence should be addressed.
Energies 2020, 13(7), 1798; https://doi.org/10.3390/en13071798
Received: 20 February 2020 / Revised: 18 March 2020 / Accepted: 30 March 2020 / Published: 8 April 2020
(This article belongs to the Special Issue Computational Analysis of Natural Gas Supply Chains)
The results of a techno-economic model of distributed wind-hydrogen systems (WHS) located at each existing wind farm on the island of Ireland are presented in this paper. Hydrogen is produced by water electrolysis from wind energy and backed up by grid electricity, compressed before temporarily stored, then transported to the nearest injection location on the natural gas network. The model employs a novel correlation-based approach to select an optimum electrolyser capacity that generates a minimum levelised cost of hydrogen production (LCOH) for each WHS. Three scenarios of electrolyser operation are studied: (1) curtailed wind, (2) available wind, and (3) full capacity operations. Additionally, two sets of input parameters are used: (1) current and (2) future techno-economic parameters. Additionally, two electricity prices are considered: (1) low and (2) high prices. A closest facility algorithm in a geographic information system (GIS) package identifies the shortest routes from each WHS to its nearest injection point. By using current parameters, results show that small wind farms are not suitable to run electrolysers under available wind operation. They must be run at full capacity to achieve sufficiently low LCOH. At full capacity, the future average LCOH is 6–8 €/kg with total hydrogen production capacity of 49 kilotonnes per year, or equivalent to nearly 3% of Irish natural gas consumption. This potential will increase significantly due to the projected expansion of installed wind capacity in Ireland from 5 GW in 2020 to 10 GW in 2030. View Full-Text
Keywords: hydrogen; wind energy; water electrolysis; energy storage; energy system; geographic information system; natural gas network hydrogen; wind energy; water electrolysis; energy storage; energy system; geographic information system; natural gas network
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MDPI and ACS Style

Gunawan, T.A.; Singlitico, A.; Blount, P.; Burchill, J.; Carton, J.G.; Monaghan, R.F.D. At What Cost Can Renewable Hydrogen Offset Fossil Fuel Use in Ireland’s Gas Network? Energies 2020, 13, 1798. https://doi.org/10.3390/en13071798

AMA Style

Gunawan TA, Singlitico A, Blount P, Burchill J, Carton JG, Monaghan RFD. At What Cost Can Renewable Hydrogen Offset Fossil Fuel Use in Ireland’s Gas Network? Energies. 2020; 13(7):1798. https://doi.org/10.3390/en13071798

Chicago/Turabian Style

Gunawan, Tubagus A., Alessandro Singlitico, Paul Blount, James Burchill, James G. Carton, and Rory F.D. Monaghan 2020. "At What Cost Can Renewable Hydrogen Offset Fossil Fuel Use in Ireland’s Gas Network?" Energies 13, no. 7: 1798. https://doi.org/10.3390/en13071798

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