You don’t need to dig it out of the ground, it’s already free.
Making solar panels is incredibly power intensive because you can't just dig rocks out of the ground and turn them into PV cells (though it's getting better as newer panels need less silicon per watt).
Making solar panels is incredibly power intensive because you can't just dig rocks out of the ground and turn them into PV cells (though it's getting better as newer panels need less silicon per watt).