The Way Things Work: Erecting a Wind Turbine in Rural Alaska

Erecting a wind turbine in permafrost may be a little more difficult than you think. There are a lot of factors to consider. As the ground softens in the warmer months, the tower may experience a shift in lateral support, changing the relative center of gravity. Turbines cannot settle or tilt in any way or they will first lose efficiency. After that, the equipment will begin to break. The permafrost layer of the earth is constantly fluctuating in depth and distance to the surface. This not only affects the tower itself, but also the construction of the tower. The cranes [...]