This has been sleeping for a while so I will waken it up on the back of a chance spot. It's one of those findy-out type of threads.
Some good wholesome stuff in its pages. The subject is given a fair hearing and I used to fairly regularly have a look at what were the latest developments and post them up. This no doubt has appeared at some point. Seven times now! (
Link)
HVO
and the H doesnt stand for Hydrogen(close but not quite!)....that has a thread of its own
"The Hydrogen Thread" more hyped than anything else in the alternative fuels firmament. (hasn't had a post since last December...so getting dusty in the vaults itself)
It would appear thar HVO is indeed still alive and kicking, and being used by the "Film Industry" in Great Britain.

- Spotted on our travels
Neil