Three innovations key to unlock green hydrogen – TotalEnergies
Electrolyser efficiency, solar-to-hydrogen and wind turbine integration are vital technologies to bring down costs of green hydrogen, oil major says
Three innovations are emerging to improve the long-term efficiency of producing green hydrogen, according to a new report from TotalEnergies. The first is the improvement of electrolysis technologies. Solid oxide technologies in particular are expected to bring a significant gain in efficiency, the report notes, though they are still at pilot phase. UK-based hydrogen technology developer Ceres Power recently announced its move into commercialising solid oxide electrolysis units. The second innovation is solar-to-hydrogen (STH), a technology with the capability of producing hydrogen directly from water and light, using panels combining photo-electrodes and electro-catalysts based on nanomater
Also in this section
4 February 2026
Europe’s largest electrolyser manufacturers are losing patience with policymakers as sluggish growth in the green hydrogen sector undermines their decision to expand production capacity
2 February 2026
As a fertiliser feedstock, it is indispensable, but ammonia’s potential as a carbon-free energy carrier is also making it central to global decarbonisation strategies
28 January 2026
The development of hydrogen’s distribution system must speed up if the industry is to stand any chance of grabbing a meaningful slice of the low-carbon energy market
14 January 2026
Continent’s governments must seize the green hydrogen opportunity by refining policies and ramping up the development of supply chains and infrastructure






