IE Questions: Super Grid! Spanning Continents In A Single Bound!

Somewhere in the world, the sun and wind are always shining and blowing, and people are always using electricity. Wouldn’t it be nice if we could get renewable power from the windy and sunny places to the power hungry places? That was presumably the thinking behind a question posed by an Inside Energy audience member:

Would transmission losses be too high to sustain an international green power electrical grid? The short answer: Yes. An international power grid would sustain huge transmission losses and would therefore be too expensive to be feasible, right now. But in some situations, regional or continental grids do make financial sense and are already under development.