They built a wind turbine as part of a college class. Now students from the College of the Atlantic plan to share their knowledge with the town of Bar Harbor. Students installed the turbine on Beech Hill Farm last month. It’s used to generate electricity for a farmhouse and office.Tomorrow night, the students will meet with the Bar Harbor Planning Board to talk about the potential for other residential wind power projects in the area. They’ll also discuss concerns surrounding wind turbines, like their impact on birds and noise from the spinning blades. The meeting is set to begin at 6 o’clock.