“With the sustained increase in gas prices and considering France’s and Europe supporting policies, switching to renewable hydrogen is to become a competitive option for potential end-users.” planes, in particular, will have to rely on liquid fuels before they can be electrified. Then these modes of transport will certainly convert to zero-emission using hydrogen. Such conversions are technically feasible: “Liquid hydrocarbon pipelines, after proper cleaning, are perfectly suited to transporting this gas” confirms François Billard. Same for the cavities that today store oil. A case study featuring FRANÇOIS BILLARD No doubt: it will always be easier - and less costly - to «green» oil infrastructures by gradually converting them and/or by Managing Director, Géosel attaching hydrogen pipelines to them, than to want everything reinvented. 57