For several miles along the northen coast of Lake Erie in Ontario we passed by hundreds of huge wind turbines like this one. We first learned of their size when we paused along our way for a police car and a very long tractor trailer carrying one turbine blade. We later learned that blade was 122 feet long and as you can see, each turbine has three blades. Here is an even more astonishing comparison. Each blade is as long as a 737 airplane! It takes just over 5 mile per hour winds to get the turbines moving. All of the ones we passed are used to supply the total electrical needs of a town of 26,000 people in Ontario. Life expectancy of the generation unit is 20 to 25 years.
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