Water from a water-collection vacuum balloon could be used to drive a hydroelectric generator.
INDICATIONS
The volume of water from a collection station might not be large, but the head pressure available (from around 1 kilometre or more) would be very considerable.
Arrays of collector balloons could be linked to central hydroelectric generators, either in the air or on the ground.
Cascades of generators would be possible at various intervals between the collection centre and the ground.
Collected electricity could be passed through a grid of aerial cables to required delivery points.
Development of devices and control software is possible here, with new approaches open to patenting or trade-secreting.