You don't have to spend energy to spin.
The only energy that would be spent would be the energy put into building the Lagrange Point Hub.
The Lagrange Point Hub would be very similar to how a wind turbine operates. You have a central hub that is attached to vanes that are turned by the wind.
Gravity would function very similar. Since gravity is a body or force in motion and the vanes of the Lagrange Point Hun would be effected by gravity, the vanes would turn while the hub remained relatively motionless, save for the thrusters that would have to be used to keep the hub from wobble orbiting out of the Lagrange Point.
I'm certain politicians of the world will put having deal with the caldera off as long as possible in order to only save theirs elves.
Germany has already taken steps to ensure its power grid stays on by burying their powerlines underground.
The only energy that would be spent would be the energy put into building the Lagrange Point Hub.
The Lagrange Point Hub would be very similar to how a wind turbine operates. You have a central hub that is attached to vanes that are turned by the wind.
Gravity would function very similar. Since gravity is a body or force in motion and the vanes of the Lagrange Point Hun would be effected by gravity, the vanes would turn while the hub remained relatively motionless, save for the thrusters that would have to be used to keep the hub from wobble orbiting out of the Lagrange Point.
I'm certain politicians of the world will put having deal with the caldera off as long as possible in order to only save theirs elves.
Germany has already taken steps to ensure its power grid stays on by burying their powerlines underground.