Wow, this is not a question we thought to raise. Hydrogen is many times forgotten as a potential clean fuel source. In fact none of us at Renewable Now have driven a hydrogen car or fueled one. Have you?
We did talk with their largest utility co, Hawaiian Electric, and came away impressed with their commitment to helping the state get 100% renewable by 2045, perhaps, sooner.
Now comes this article we found in Renewable Energy World.com (great site/source of material) that questions why hydrogen can't be a big part of the mix? One of the points the author makes which resonates with us is that such a switch to local fuel will be a boom, unlike they have seen in decades, to Hawaii's economy.
Lots of good reading here. We can attest to Oahu being far too congested with cars. With their mass transit system coming on line, now is the time to implement a statewide energy policy that will carry them cleanly into the next 50 years.