You know what I've wondered for a while now? Why not make lighter-than-air wind farms.
It's well-known that wind blows faster and more consistently at altitude, and any child's spinner shows that you can construct a lightweight wind turbine easily enough. The only difficulty would be getting the power back to the ground. But you'd have to tether the turbines somehow, so just run a lightweight wire down that. Sure, the length will add up in weight, but you can compensate for that; say, put a bunch of these turbines on a blimp of sorts, with enough helium aboard to support the weight of the wire.
It's well-known that wind blows faster and more consistently at altitude, and any child's spinner shows that you can construct a lightweight wind turbine easily enough. The only difficulty would be getting the power back to the ground. But you'd have to tether the turbines somehow, so just run a lightweight wire down that. Sure, the length will add up in weight, but you can compensate for that; say, put a bunch of these turbines on a blimp of sorts, with enough helium aboard to support the weight of the wire.