It just occurred to me that for a super deep future civilization's energy needs, there may be a less improbable alternative to a full sized Dyson Sphere. What if you could use some sort of nuclear or antimatter explosive to cause a controlled coronal mass ejection. The amount of energy in a billion tons of super charged plasma makes solar radiation seem pitiful. Instead of moving a large percentage of the matter in the solar system into a super structure sphere the diameter of the orbit of Venus. You simply "mine" the sun's corona for the energy as you need it. That can scale horizontally into a huge grid of magnetic field generators that capture CME's. What do you think of this idea? Is this at all feasible? Has it been suggested before?