The natural interpretation of 100% efficiency is that the machine outputs 100% of the work put into it, which is impossible. In the case of awes that would be 100% of the wind in a defined volume or swept area. @PierreB seems to know most about these things. Betz limit and power available in the wind
But let’s go with your definition:
There is no physical law dictating, that the relationship between average and maximum power. We’ve got the one paper you quoted, but we don’t know the estimates of other developers. For example reel in phase might have become shorter.
By the way: It looks like they weren’t actually generating electrical power in that Article but only measured line length, and tether force and calculated the power from that.
By your definition of efficiency that holds true.^^ I doubt the relationship between maximum power and average power is meaningful. It would be better to just compare average power of systems which cost the same.
Seemy like you’re talking about the capacity factor. Solar, for example has a very low capacity factor of about 0.3 and is still one of the best ways to generate electricity.
Yepp. Automatic operation in general. Would need to be a damn large system to make it economically viable to have people there and then they couldn’t just move it manually.