Gravity foundation is used on a variety of geotechnical conditions: medium soil, soil, and solid rock. The loads are transferred from the tower to the ground through an anchor cage along with a wide and shallow foundation over large area of soil.
Peikko’s design optimizes the foundation size, weight, and costs. For example, a 5.5 MW turbine with a tower height of 120 meters uses:
- 800 m3 of concrete (80 truckloads)
- 100 t of steel (5 truckloads)
- 1 anchor cage (1 truckload)