Cluster balloon blimp automatically sends down emptied balloons to be refilled by towed generator, creating electricity from opposing wind vs sea currents, and filling the emptied balloons with hydrogen in a hullaballoon like process.
-- pashute, Jul 09 2013

Blimp in desert http://photos.wikim...02/15/78/62_big.jpg
No h2o here... (Ketziot - mistakenly marked as Dimona...) [pashute, Jul 09 2013]

Solar powered blimp http://www.celsias....rgo-fast-and-clean/
with picture fit for this idea... [pashute, Jul 09 2013]

random, halfbakery