Buchholz Wind Park 3, Celle, Lower Saxony

The hydrologist had planned the drainage for this wind park to occur via soil drainage systems – however, it became apparent that these were not adequate for the drawdown. In order to solve this problem, deep wells had to be bored at short notice, but these multiplied the amount of water to be drained. We therefore created new drainage ditches and infiltration areas and quickly built settling basins and drainage ditches to induce the discharge of water. The drawdown had to be constantly monitored in order to adhere to the construction schedules.

We were able to avoid a similarly cost-intensive procedure for two other wind turbines by raising the foundation level. This allowed us to achieve significant cost savings. wiwi consult also undertook the supervision of the planning and construction of the cable line (around 18 metres in length).

Facts

• 4 V-126 wind turbines
• Start of construction: March 2017
• End of construction: August 2017
• Customer: EnBW

Our services

• Implementation plans for the infrastructure and construction management, representation of the principal and the coordination of the project infrastructure, including groundwater drawdown
• Work stages as per HOAI (Regulations on Architects' and Engineers' Fees): Work stage 8
• Supervision of the construction of the medium-voltage grid connection, including compensation station, and a 15 km long external cable line in the area supplied by Avacon
• Technical support with regard to claim management

Contact Person

Torsten Höllwarth
Head of Repowering & Construction
Contact us