Before revision:  Using an open-source co-optimization model of the power sector and four supply chains for hydrogen at filling stations, we find a trade-off between energy efficiency and temporal flexibility: for lower shares of renewables and hydrogen, more energy-efficient decentralized electrolysis is optimal.
After revision:  Using an open-source co-optimization model of the power sector and four supply chains for hydrogen at filling stations, we find a trade-off between energy efficiency and temporal flexibility: for lower shares of renewables and hydrogen, more energy-efficient and less flexible small-scale on-site electrolysis is optimal.