Happy to ...
I'd be happy to clarify. I didn't mean to imply the offshore turbines actually take up 247 acres. Poor word choice on my end. The offshore turbines are often bigger than onshore turbines. But not that large.
However, according to the report each turbine will reside on an average of 247 acres. Combined, their footprint would cover 1,931 square miles (5,000 square kilometers).
A Wind Energy Update report last year noted that spacing between offshore turbines is critical. If they're spaced too closely together, the wake effect reduces their performance.
Of course, it all depends on the size of turbine etc. Cape Wind project, for example, will space its turbines in the Horseshoe Shoal will be 0.34 nautical miles apart (or 0.39 miles).
