Yeah there was a new building built in our city with wind turbines on top that everyone was impressed with because "They could generate their own power." The t

Yeah there was a new building built in our city with wind turbines on top that everyone was impressed with because "They could generate their own power." The thing is that I remember hearing that the amount of energy wind turbines can generate depends on how big their blades are and these turbines looked really small. It took some digging but eventually I found an article that said the turbines will generate less than 5% of the buildings energy requirements at full speed. I mean that's not terrible, but then again they spend a lot of time not spinning at all let alone full speed...