Not if you factor in support costs you wouldn't. (Or sunk equipment costs for small scales.)

Gasoline allows one to use large amounts of power at the same time, say, to run a generator, start a power plant or run power tools for construction.

Bitcoin is not useful in and of itself as the current system of transactions is perfectly workable.

On the other hand, try running power tools on solar power... (including making the huge batteries and plastics)