Ah… I enjoyed visiting with John down in Albany, LA. Last I heard, he moved to Peru.
A few months ago, I reached out to the folks he was working with down there. Really nice guys. They were converting sawdust from their sawmill into briquettes and then used as feedstock for their gasifier running a generator, doing net-metering. Sadly, no reply to my emails.
I met John on the GEK site. They started with the GEK and then built their own design.