1. Global hydrogen review 2023,2023
2. Towards hydrogen definitions based on their emissions intensity,2023
3. Electrolyzers enhancing flexibility in electric grids;Mohanpurkar;Energies,2017
4. “Nel ASA: receives purchase order for a 1.25 MW containerized PEM electrolyser from NREL”;Nel Hydrogen,2020
5. “Brentwood lessons learned project report,”;Rivkin,2017