I'm trying to figure out how they would keep enough moisture in the "greenhouse." By definition there's a breeze so it's like using an air dryer on your garden - you would need to provide a lot of water to keep the plants and soil moist. That water has to come from somewhere. In addition, evaporative cooling reduces the amount of power the facility will generate and makes it heavier to lift out. Although the density of the air going through the turbines might compensate.