Viehofen hydropower plant, St. Pölten

Project objectives

Geological and hydrogeological consulting as well as appraisal for the construction of a small hydropower plant in Viehofen north of St. Pölten.

Project description

On the Mühlbach, an artificial channel that branches off from the Traisen via a weir, a hydropower plant was planned. The project was submitted almost 10 years ago to cover the energy needs of a housing estate with around 350 flats but was not realised. It was resubmitted in an adapted form. Planning included the construction of an underwater turbine with an output of up to approx. 120 kW. Due to its location in a developed area, the impact of the construction had to be hydrogeologically and geotechnically assessed.

Project data

• Development water volume Qa = up to 5.5 m³/s
• Gross head: approx. 2.5 m
• Installed power: up to 120 kW

Services

• Geological and hydrogeological subsoil investigation (design, coordination, supervision of the execution, evaluation of dredged trenches and boreholes)
• Preparation of a geological and hydrogeological report
• Supported planner in the preparation of the submission documents
• Installation and supervision of groundwater monitoring (partly with remote transmission)