As I drove the landscape, I was looking at the spacing between turbine rows and thinking about dirty air and laminar flow (why Texas is a good place for wind farms). Probably because the previous week I'd watched a bit of Americas Cup on TV with a friend who sails.

In the long run, it might be possible to achieve higher energy density with kites due to dynamic repositioning. The economics of increased complexity for higher density might work out, but I suspect that the density would need to be significantly higher while maintaining similar consistency of output. Feathering a fixed turbine offline in high wind and spinning it up again as conditions become favorable looks quicker than cabling in and cabling out kites in similar conditions.