Even if coal is not cheaper all up, the fixed sustainable harvest still applies, which suggests that the ideal role of coppice biocoal in a sustainable energy portfolio is as a readily storable firming energy source, with the main energy supply from harvesting volatile energy sources such as wind and solar, and the firming energy source allows it to function as baseload and scheduled load.

I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.