concrete_car

I've been thinking about building a windmill at the top of a nearby hill and running axles underground to a base closer to sea level, taking advantage of the windmill elevation bonus without having to build an especially tall structure. I remember hearing in the past, however, that power losses from especially large setups can be mitigated by gearing down to a lower speed before traveling the long distance, akin to electrical current being transformed to a higher voltage/lower current before being sent through long-distance transmission lines. Is this the case? If not, should it be? Not sure how realistic it is.