Graeme,
Greencarcongress. What a source of BS. These guys are full to the gunwales. Nothing they ever write about ever pans out. Another crop of high yield BS with an un-costed price for jet fuel and a fantasy "could be" price. Could be not would be more realistic.
No-one, not one company, has even a small scale BTL project that works and in my opinion NEVER will have. Look at the feed, look and the products, and look at the thermodynamics. More than difficult. Impossible.
Remember Choren. RIP. At least we do not have to suffer that any longer.
Miscanthus. Let me see. This was the weed that BP made a big splash about in Florida. At a conference in 2012 in the Paris the BP idiot presenter could not even give a half realistic yield figure. I congratulated him on being about to grow 3 times what had previously be achieved as the high end yield. When questioned on nutrient requirements I had a very strange look.
I suggested that his data might need testing and that I had serious doubts that the project would be viable. This was met with some irritation, The best bit came 6 months later when BP scrapped the project.
What a surprise. Another failed cellulosic ethanol venture. Millions wasted on a process that has been promised for more than a century. It even beats nuclear fusion by a long, long way for non delivery.