Wind Farms: Turbines break like match-sticks in medium waves, and their capacity is “overestimated”

JoNova (Australia)
"Not a good news week for wind power. First windpower probably doesn’t produce as much electricity as people though it could. If the new estimates are right, humanity would need to cover 3 million square kilometers of the Earth to get just 10% of our electricity from wind. (And how many storms will that prevent do you think?) Could the “cure” be worse than the condition? Second, it appears that wind turbines in the ocean might snap like matchsticks in particular conditions — conditions that are different for each turbine and at the moment, impossible to predict. The authors explain that it doesn’t have to be big waves or big storms — medium sized waves were the worst."