for example the equipment cost for a 10 kw wind turbine costs roughly $ 40000 while a 100 kw turbine can cost more than $ 350000 according to bergey com the average wind turbine can cost $ 48000 to $ 65000 to install
The boats can typically travel at speeds over 80 knots (150 km/h) in calm waters, over 50 knots (90 km/h) in choppy waters, and maintain 25 knots (47 km/h) in the average five to seven foot (1.5 to 2 m) Caribbean seas. They are heavy enough to cut through higher waves, although at a slower pace.
So I'd say it's at least 20 miles, and quite possibly as much as 50 if the conditions were perfect (not to hot, not too cold, etc.) Even moderate swimmers can cover that much with a follow boat to provide food and water, as in the recent case of a woman who covered a meandering 60 mile route to cross the English channel in 28 hours. With rest and food, you can get really absurd achievements, like swimming across the Atlantic Ocean.