crab:
I have encountered 2 wind farms at sea in the last 5 years that weren't marked on the aviation maps! I suspect that many of them aren't marked on a lot of marine charts either
I find that extremely disturbing. Can you recall which ones these were? Developers are duty-bound to report the details to MoD, and the extent of pre-consultation with MoD and civil aviation interests also ensures that they are aware of all developments.
NS