Encapsulated Thunderbolt

2050. Some years ago a capsule with a huge thunderbolt inside was found in a lake in the Earth. Some people say they saw a big eagle flying with the capsule in its claws. People often say crazy things but also they see even more incredible events.

Despite its origin, the capsule is now one of the main energy supply. Engineers and tax employees worked hard in order to juice the energy to satisfy hungry customers. Actually they don't understand well the mechanism inside but taking each volt from it is enough.

Something like free energy. 500MT can cover the waste of energy for an average wester family.