Zero Avia[1] is already working on hydrogen retrofits for existing planes. You can produce and store it via electrolysis directly at the airports. You won't h

Zero Avia[1] is already working on hydrogen retrofits for existing planes. You can produce and store it via electrolysis directly at the airports. You won't have to pipe it around. Unlike a car charging network, you'll only need production and storage at a small number of airports instead of thousands of charging station, so it's far more practical for that application. Biofuels use a lot of fossil fuel derived fertilizer and require a lot of energy to distill into jet fuel. It might be a stop gap solution, but not a long-term one especially since people could eat the crops grown where biofuel crops are grown. [1] http://zeroavia.com http://zeroavia.com