“Clean coal” has been around for decades.
How clean? How economical?
I worked on a coal fired power plant 47 years ago in Wyoming. They sure seem to have had clean coal burning down way back then. Nothing came out of the stacks but white steam.
I think someone will make a break through on fusion reactors soon that will blow away all other forms of energy production.
No opinion offered until i see better what technologies he’s proposing. Diesel? ??
Many, many thousands of ideas work better in the lab than in the field and factory.