> To expand hydrogen capacity, you need more pressure vessels.
Even simpler, you can store it in salt domes which are currently used for natural gas reserves. The pipes and related infrastructure may need to be replaced due to hydrogen embrittlement, but the storage itself is already there.
Even simpler, you can store it in salt domes which are currently used for natural gas reserves. The pipes and related infrastructure may need to be replaced due to hydrogen embrittlement, but the storage itself is already there.