Alkaline electrolyzers: Powering industries and overcoming fundamental challenges
Abstract
To expect to see the renewable hydrogen sector develop sustainably, alkaline electrolysis appears like a technology of choice. Nevertheless, despite its long history that showed its reliability in the industrial field and despite the traditional belief from the scientific community, alkaline electrolyzer technology still requires to be optimized to meet the new challenges imposed by the deployment of large electrolysis plants, notably in the case of future massive islanded renewable hydrogen production plants. In fact, it turns out to be critical to reduce CAPEX (capital expenses) costs, improve the energy efficiency over time and the dynamic response to intermittent power sources to lower OPEX (operating expenses) costs while operating safely. In this context, some very fundamental challenges related to electrode degradation, electrolyte and bubbles transport, membrane optimization etc., must be explored right now before being transferred to GW scale industrial projects that should be commissioned in 2030.
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BibTeX
@article{dubouis2026alkaline,
title = {{Alkaline electrolyzers: Powering industries and overcoming fundamental challenges}},
author = {Nicolas Dubouis and David Aymé-Perrot and Damien Degoulange and Alexis Grimaud and Hubert Girault},
journal = {Joule},
year = {2026},
month = sep,
doi = {10.1016/j.joule.2024.02.012},
url = {https://hal.science/hal-05765308v1},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - JOUR
TI - Alkaline electrolyzers: Powering industries and overcoming fundamental challenges
AU - Nicolas Dubouis
AU - David Aymé-Perrot
AU - Damien Degoulange
AU - Alexis Grimaud
AU - Hubert Girault
PY - 2026
DA - 2026/09/25
JO - Joule
DO - 10.1016/j.joule.2024.02.012
UR - https://hal.science/hal-05765308v1
AB - To expect to see the renewable hydrogen sector develop sustainably, alkaline electrolysis appears like a technology of choice. Nevertheless, despite its long history that showed its reliability in the industrial field and despite the traditional belief from the scientific community, alkaline electrolyzer technology still requires to be optimized to meet the new challenges imposed by the deployment of large electrolysis plants, notably in the case of future massive islanded renewable hydrogen production plants. In fact, it turns out to be critical to reduce CAPEX (capital expenses) costs, improve the energy efficiency over time and the dynamic response to intermittent power sources to lower OPEX (operating expenses) costs while operating safely. In this context, some very fundamental challenges related to electrode degradation, electrolyte and bubbles transport, membrane optimization etc., must be explored right now before being transferred to GW scale industrial projects that should be commissioned in 2030.
SN - 2542-4351
ER -