It takes longer to grow wood that can produce large amount of energy. There is only limited number of energy available in wood.
Energy from wood cannot be converted to usable energy.
Energy from wood is harder to convert than oil.

the apollo program, also known as project apollo, was the third united states human spaceflight program carried out by the national aeronautics and space administration (nasa), which succeeded in landing the first humans on the moon from 1969 to 1972.

wallop

to hot or strike with a hand blow

explanation: