Joseph K. Alter/ Con-Tech Systems LLC/ www. contechsystems.com Conventional wind-turbine foundations are large pads of concrete some 20-m across and 2 to 3-m deep. These spread-footing foundations consume up to 500 to 700 cubic meters of reinforced concrete. A recently developed foundation system is more efficient and environmentally friendly. It consumes up to 40% less concrete […]

Windpower Engineering & Development