The engineers who look at the technical difficulties of transporting electricity such a distance under the open ocean have not found it feasible. At least they have not made such a report public. Laws of nature Certain facts are apparent. Electricity always obeys the laws of the universe, and unless the prime minister has found a way to change things, the picture looks extremely doubtful for the successful solution of this challenge. First there is the problem of resistance in the conductor.
Resistance causes loss.
Too much loss and there is nothing left to come out the end. Alternating current at very high voltage can reduce this loss, but the losses are still a very big consideration. There must be no maintenance factor. The cables must be 100 percent reliable for enough years to make their installation economically practical. But there is no company which has come forward to manufacture and supply such cables.