Dutch company Teesing is developing a more efficient technology for hydrogen refueling. Teesing is my former employer, but I am still involved in this project. Teesing's patented technology is used to transfer hydrogen from one storage (e.g. a refueling station) to another (e.g. a vehicle fuel storage tank). Until now hydrogen has to be pre-cooled using liquid nitrogen for fast refueling before it can be transferred. Teesing's new technology is more efficient, which makes cooling unnecessary. This results in a cheaper solution for fast refueling at pressures up to 700 bar.
Teesing's solution works by initially filling the target fuel tank with demineralised water which later is exchanged for 700 bar hydrogen. Because the exchange is made at a low pressure differential, much less energy is lost.
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