Project reference · Karlstad, Sweden

Hydropower Plant Alster · Karlstad

A full modernization of the control, excitation and hydraulic systems for reliable, yield-optimized operation.

Head7 m
Flow rate5,000 l/s
Output350 kW
TurbinesFrancis + Kaplan
Generators2 × synchronous
Control, excitation, hydraulics and remote monitoring

Complete renewal of the automation system

At 7 m head and 5,000 l/s flow, Hydropower Plant Alster in Karlstad delivers 350 kW. The machinery consists of a 130 kW Francis turbine and a double-regulated 220 kW Kaplan turbine, both with synchronous generators.

The complete control system was renewed. The scope also included a new excitation unit for both synchronous generators, remote monitoring and automatic level control, providing transparent operation and central oversight.

The entire hydraulic system, including a new hydraulic power unit, was also renewed. The work combines the existing machinery with modern control and hydraulic technology.

The modernization delivered a significant increase in yield and provides reliable, future-ready plant operation.

  • Turbines: 130 kW Francis turbine and 220 kW double-regulated Kaplan turbine.
  • Generators: Two synchronous generators with a new excitation unit.
  • Automation: Complete control-system renewal with remote monitoring and automatic level control.
  • Hydraulics: Full renewal, including a new hydraulic power unit.

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