Project Description

Sigmaringen (Laiz) condition assessment

Dr. Hutarew & Partner planned the hydropower plant Sigmaringen Laiz in 1997 and provided technical support in the implementation process. In 2017, we were commissioned with the as-built analysis of this hydropower plant. After 20 years of operation the system components should be checked for their condition and maintenance requirements. The aim of a condition assessment is to meet today’s requirements for machine and control technology, as well as to increase operational safety and reduce operating expenses.

The plant was visited several times, the existing state documented in detail, logged and evaluated. On the basis of these findings and their evaluations recommendations were made for the improvement of the maintenance.

It was already in 1975 when initially the weir system of the state of Baden-Wuerttemberg was developed in place and complemented in 1997 by a hydropower station by the municipal utilities of Sigmaringen. The hydropower plant consists of a hydroelectric power station, a computer system with a cleaning machine, a canoe lock with a roof-type gate and fish migration facilities – upstream and downstream. Furthermore the turbine (Kaplan belt type turbine), the turbine control and the steel water components were tested throuroughly.

As part of the rehabilitation concrete components, hydromechanical equipment, hydraulic machinery, electrical equipment, scada system  and new communication  system (measurement & control technology) were tested for their usability and hence upgraded the  system to a contemporary standar. An upgrade with increased performance is the desired result.

Project type

  • Client: municipal utilities Sigmaringen

  • Location: Sigmaringen

  • Condition assessment / as-built analysis hydro power plant

  • Implementation of the rehabilitation proposals for the entire plant

Technical details

  • Belt-type bulb turbine

  • Trash rake cleaning facility

  • Communication & control technology

  • Grid connection components

  • Superior control of the weir system (state property), the hydroelectric power plant & canoe lock

Services performed

  • Condition assessment

  • Tender documentation and specifications

  • Coordination of rehabilitation work including in situ testing

  • Renewal of turbine control & regulation

  • Quality assurance & re-commissioning