Agree widespread hydrogen use is a little way out - and not a given - but quiet progress is being made along with some stealthy moves into the real world - I've listed a few below. As you point out DrP, H2 is only an energy storage medium, the energy still has to come from somewhere - in this case coal. But there's a lot of different pathways you can go down to extract the H2. Another example would be to burn the coal for electricity then use that to electrolyze water. That's very inefficient. The Argonne site listed syngas separation as one of the most efficient ways to extract H2. There's a Hydrogen conference on in Brisbane at the moment so maybe we will hear a bit more about it.
-Honda, Toyota, BMW and GM have all released production model cars though they are expensive and limited numbers produced. Hydrogen buses are also in production and service. -Panasonic has a hydrogen fuel cell for home electricity generation being piloted in Japan. This can be fueled at via reforming natural gas or bio-waste. -There are Hydrogen refueling outlets popping up in places like California, Iceland and India. Currently natural gas is the feedstock most widely used. Natural gas also offers the potential for home refueling (as does electricity but very inefficiently). -Vehicles that use gas as a fuel (CNG/LPG) are growing in popularity. These can run more cleanly and efficiently when blended with hydrogen. There's also a car in the pipeline that combines petrol with hydrogen produced on the fly for a cleaner burn.
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