 The industrial turbines will have giant nacelles that house drivetrains, rotor shafts, gearboxes, and generators affixed with massive blades designed to catch intermittent high-altitude winds here. Let's first differentiate. A windmill is like 60 to 100 foot tall, and they look nice. But a wind turbine, these are proposed at 698 foot tall. The nacelle is like the size of a couple of school buses, these windmills.