Could be the near future for offshore wind turbines? SWAY turbines are as large as 10MW (so far) each and they pivot to follow the wind direction. This movement ability with the wind allows the blades to be larger (less torque on the supporting shaft). It will be a beautifully choreographed display of synchronized bobbing out in the open waters. More information about SWAY here.
And the extra good news comes as a buried lead in an article about some recent MIT research that suggests that enough offshore wind turbines could have the added side result of lowering global temperature. This could cool the planet to offset the estimated warming from greenhouse gas emissions. Of course, the potential of cooling too far would have to be well considered. But land-based turbines have an overall warming effect (the title of the article) so perhaps a nice balance could be achieved to the perfect effect?