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Hydrogen will have its place in the new green economy. It carries more energy per weight and volume than lithium batteries, so it looks like it'll make sense for green hydrogen to find widespread use in applications that batteries can't service: aviation, marine, long-haul trucking, trains and heavy vehicles are potential candidates.Hydrogen will have its place in the new green economy. It carries more energy per weight and volume than lithium batteries, so it looks like it'll make sense for green hydrogen to find widespread use in applications that batteries can't service: aviation, marine, long-haul trucking, trains and heavy vehicles are potential candidates.