Impacts of photocatalytic hydrogen production on the European energy system
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| Main Authors: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866908471035691008 |
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| author | Tuschewitzki, Wolfram Lange, Jelto Schneidewind, Jacob Kaltschmitt, Martin |
| author_facet | Tuschewitzki, Wolfram Lange, Jelto Schneidewind, Jacob Kaltschmitt, Martin |
| contents | Especially in regions with high solar irradiation, photocatalysis presents a promising low-cost "green" hydrogen production option. Thus, this paper analyzes impacts of increasing photocatalysis shares on the European energy system using an open-source energy system optimization model covering the electricity, industry, and heating sectors with high spatial and temporal resolution. Photocatalysis deployment is investigated at various market shares by exogenously altering photocatalysis costs. The results show that integrating photocatalysis necessitates systematic adjustments since it lacks the flexible load attributes of water electrolysis. Therefore, a significant geographic shift in hydrogen production and demand from the Northwest to South Europe is expected in the case of large-scale photocatalysis adoption. Despite these challenges, installed photocatalysis shows costs within the photocatalysis cost projections. Thus, photocatalysis could contribute to a critical diversification of hydrogen production, easing material demands for other renewable technologies. Nevertheless, it requires strategic planning to avoid lock-ins and to maximize its potential. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2507_21755 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Impacts of photocatalytic hydrogen production on the European energy system Tuschewitzki, Wolfram Lange, Jelto Schneidewind, Jacob Kaltschmitt, Martin Physics and Society Especially in regions with high solar irradiation, photocatalysis presents a promising low-cost "green" hydrogen production option. Thus, this paper analyzes impacts of increasing photocatalysis shares on the European energy system using an open-source energy system optimization model covering the electricity, industry, and heating sectors with high spatial and temporal resolution. Photocatalysis deployment is investigated at various market shares by exogenously altering photocatalysis costs. The results show that integrating photocatalysis necessitates systematic adjustments since it lacks the flexible load attributes of water electrolysis. Therefore, a significant geographic shift in hydrogen production and demand from the Northwest to South Europe is expected in the case of large-scale photocatalysis adoption. Despite these challenges, installed photocatalysis shows costs within the photocatalysis cost projections. Thus, photocatalysis could contribute to a critical diversification of hydrogen production, easing material demands for other renewable technologies. Nevertheless, it requires strategic planning to avoid lock-ins and to maximize its potential. |
| title | Impacts of photocatalytic hydrogen production on the European energy system |
| topic | Physics and Society |
| url | https://arxiv.org/abs/2507.21755 |