Complex sentence: Mars Hill underwent an $85 million wind turbine project in the fall of 2006, installing 28 General Electric 1.5 megawatt turbines along the top and northern section of the mountain.
Split into simpler sentences: Mars Hill underwent an $85 million wind power project in the fall of 2006. Developers installed 28 General Electric 1.5 megawatt turbines along the top and northern sections of the mountain.