There are those who would say "nothing". However, this source says $45 dry ton ( in 2010 ). The same article said that the electricity produced from such as source ranged in price from 6 cents to 11 cents per kwh.
Now, if you were to pyrolyze it into biochar, syngas, and biocrude, the value of these resulting products could be worth more than the cost of $45 a dry ton.
For $45, I can run my truck all day on gasoline. Now, how much sawdust would it take to run a Stirling electric conversion van to run on biocrude and syngas? Not a ton, I can pretty much bet on.
How much biocrude would you need to travel 200 miles? By comparison, gasoline has 46.6 MJ/kg, whereas biocrude has a heating value is 15-22 MJ/kg. Maybe 1/3 to 1/2 depending on its quality.
Therefore, you would need as much as 3 times as much.
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