August 16 - Germany-based construction engineering company Max Bögl Group is utilising a Liebherr LTM 112000-9.1 to erect water basins and 40 m high tower foundations for an energy storage project in the northeast of Baden-Württemberg, Germany.
Four wind turbines will stand on the water basins and will have a total height of 240 m. The basins and the 40 m high tower foundations for the wind turbines will be used as water storage facilities.
The LTM 11200-9.1 from Max Bögl's fleet is being used for the construction of 27 pre-stressed concrete rings. The concrete rings are supplied in four individual segments, which are assembled on site and stressed using steel cables. The finished component has a diameter of 16 m and is 1.5 m high.
Fitted with 202 tonnes of ballast, the nine-axle mobile crane is hoisting the components, which weigh over 90 tonnes, and placing them on top of each other.
The Liebherr LTM 11200-9.1 will then place some of the turbine towers on the 40 m high reservoir and will also assemble the Liebherr 630 EC-H 70 top-slewing crane, required for the lifting of the reservoir tower.
This self-climbing construction crane will reach a hook height of around 190 m above the ground.
The four wind turbines are expected to be operational before the end of 2017. The system will be able to generate additional electricity through its combination with a pump accumulator power plant in nearby Kocher Valley. The pump accumulator system will go into service at the end of 2018 at the latest.