I've seen one of these installed on a hoarding in Admiralty. It's not a traditional wind farm, quite a small unit.
This is the mad French inventor Lucian Gambarota who tried to install an electrical generator powered by sea waves a few years ago off the east coast of Po Toi. It failed when it was washed away in the first typhoon.
Why he insists on working on Po Toi I don't know but you can be sure the locals know all about him and won't be interested in his new idea. Their power is now free thanks to PCCW.
