Good idea but good luck to the people who will try to take the fire out
Edit: I'm not saying that it's bad, of course renewable, solar, electric is good. But knowing how horrible electric vehicle fires are to put out, I don't see a fire of piled up batteries being an easy challenge for firefighters
Why not just make a tunnel and forget the vacuum? It's just a subway system, but it's efficient
Edit: France & England might have dug a tunnel but Paris and London just have a subway. And train to move around the country.
Edit2: fixed wording