How to size regional electrolysis systems - Simple guidelines for deploying grid-supporting electrolysis in regions with renewable energy generation
Our energy system is facing major challenges in the course of the unavoidable shift from fossil fuels to fluctuating renewable energy sources. Regional hydrogen production by electrolysis, utilizing regional available excess energy, can support the expansion of renewable energy by converting surplus...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-10-01
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| Series: | Energy Conversion and Management: X |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590174523001587 |
| _version_ | 1797401692774334464 |
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| author | Fabian Radner Nadine Strobl Markus Köberl Julius Rauh Klaus Esser Franz Winkler Alexander Trattner |
| author_facet | Fabian Radner Nadine Strobl Markus Köberl Julius Rauh Klaus Esser Franz Winkler Alexander Trattner |
| author_sort | Fabian Radner |
| collection | DOAJ |
| description | Our energy system is facing major challenges in the course of the unavoidable shift from fossil fuels to fluctuating renewable energy sources. Regional hydrogen production by electrolysis, utilizing regional available excess energy, can support the expansion of renewable energy by converting surplus energy into hydrogen and supplying it to the end energy sectors as a secondary energy carrier or process media. We developed a methodology which allows the identification of the regional optimal electrolysis scaling, the achievable Levelized Costs of Hydrogen (LCOH) as well as the annually producible amount of hydrogen for Central European regions, using renewable surplus energy from PV and wind production. The results show that as best case currently LCOH of 4.5 €/kg can be achieved in regions with wind energy and LCOH of 5.6 €/kg in regions with PV energy at 1485 €/kW initial investment costs for the hydrogen production infrastructure. In these cases, regions with wind energy require electrolysis systems with a capacity of 60 % of the wind peak power. Regions with PV energy require a scaling factor of only 45 % of the PV peak power. However, we show that the impact of regional electricity demand and grid expansion has a significant influence on the LCOH and the scaling of the electrolysis. These effects were illustrated in clear heatmaps and serve as a guideline for the dimensioning of grid-supporting electrolysis systems by defining the renewable peak power, the regional electricity demand as well as the existing grid capacity of the region under consideration. |
| first_indexed | 2024-03-09T02:13:43Z |
| format | Article |
| id | doaj.art-6f8b25e0e4c74211b6c09e1d81a1bfe0 |
| institution | Directory Open Access Journal |
| issn | 2590-1745 |
| language | English |
| last_indexed | 2024-03-09T02:13:43Z |
| publishDate | 2023-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Conversion and Management: X |
| spelling | doaj.art-6f8b25e0e4c74211b6c09e1d81a1bfe02023-12-07T05:30:16ZengElsevierEnergy Conversion and Management: X2590-17452023-10-0120100502How to size regional electrolysis systems - Simple guidelines for deploying grid-supporting electrolysis in regions with renewable energy generationFabian Radner0Nadine Strobl1Markus Köberl2Julius Rauh3Klaus Esser4Franz Winkler5Alexander Trattner6HyCentA Research GmbH, Inffeldgasse 15, A-8010 Graz, Austria; Corresponding author.HyCentA Research GmbH, Inffeldgasse 15, A-8010 Graz, AustriaHyCentA Research GmbH, Inffeldgasse 15, A-8010 Graz, AustriaHyCentA Research GmbH, Inffeldgasse 15, A-8010 Graz, AustriaHyCentA Research GmbH, Inffeldgasse 15, A-8010 Graz, AustriaHyCentA Research GmbH, Inffeldgasse 15, A-8010 Graz, AustriaHyCentA Research GmbH, Inffeldgasse 15, A-8010 Graz, Austria; Graz University of Technology, Institute of Thermodynamics and Sustainable Propulsion Systems, Inffeldgasse 19, A-8010 Graz, AustriaOur energy system is facing major challenges in the course of the unavoidable shift from fossil fuels to fluctuating renewable energy sources. Regional hydrogen production by electrolysis, utilizing regional available excess energy, can support the expansion of renewable energy by converting surplus energy into hydrogen and supplying it to the end energy sectors as a secondary energy carrier or process media. We developed a methodology which allows the identification of the regional optimal electrolysis scaling, the achievable Levelized Costs of Hydrogen (LCOH) as well as the annually producible amount of hydrogen for Central European regions, using renewable surplus energy from PV and wind production. The results show that as best case currently LCOH of 4.5 €/kg can be achieved in regions with wind energy and LCOH of 5.6 €/kg in regions with PV energy at 1485 €/kW initial investment costs for the hydrogen production infrastructure. In these cases, regions with wind energy require electrolysis systems with a capacity of 60 % of the wind peak power. Regions with PV energy require a scaling factor of only 45 % of the PV peak power. However, we show that the impact of regional electricity demand and grid expansion has a significant influence on the LCOH and the scaling of the electrolysis. These effects were illustrated in clear heatmaps and serve as a guideline for the dimensioning of grid-supporting electrolysis systems by defining the renewable peak power, the regional electricity demand as well as the existing grid capacity of the region under consideration.http://www.sciencedirect.com/science/article/pii/S2590174523001587Renewable energy regionsExcess energy utilisationElectrolysisHydrogenLevelized costs of hydrogen |
| spellingShingle | Fabian Radner Nadine Strobl Markus Köberl Julius Rauh Klaus Esser Franz Winkler Alexander Trattner How to size regional electrolysis systems - Simple guidelines for deploying grid-supporting electrolysis in regions with renewable energy generation Energy Conversion and Management: X Renewable energy regions Excess energy utilisation Electrolysis Hydrogen Levelized costs of hydrogen |
| title | How to size regional electrolysis systems - Simple guidelines for deploying grid-supporting electrolysis in regions with renewable energy generation |
| title_full | How to size regional electrolysis systems - Simple guidelines for deploying grid-supporting electrolysis in regions with renewable energy generation |
| title_fullStr | How to size regional electrolysis systems - Simple guidelines for deploying grid-supporting electrolysis in regions with renewable energy generation |
| title_full_unstemmed | How to size regional electrolysis systems - Simple guidelines for deploying grid-supporting electrolysis in regions with renewable energy generation |
| title_short | How to size regional electrolysis systems - Simple guidelines for deploying grid-supporting electrolysis in regions with renewable energy generation |
| title_sort | how to size regional electrolysis systems simple guidelines for deploying grid supporting electrolysis in regions with renewable energy generation |
| topic | Renewable energy regions Excess energy utilisation Electrolysis Hydrogen Levelized costs of hydrogen |
| url | http://www.sciencedirect.com/science/article/pii/S2590174523001587 |
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