That would be about a 514 lb difference in my example. How much space is needed for 20 gallons of gas as compared to 742 lb of wood and how much energy is needed to transport the heaver wood to locations where it can be used. Storing wood for periods of time can be problematic.(bugs, decay, moisture,etc)
Comparing wood and gasoline is not as straight forward as it appeared.
Look at the credentials of the people involved here. They are business people with a history of success that can be readily vetted."