Refurbishment of Niederwartha Pumped Storage Power Plant (Dresden, Germany)

New construction of pit power house, intake/outlet structure and refurbishment of penstock pipelines.

Responsibility within engineering consortium for planning electromechanical equipment:

  • Variable speed pump turbine 120 MW including all auxiliary systems
  • Variable speed asynchronous genera-tor/motor 145 MVA with VSI activation via rotor
  • Energy transmission
  • Machine transformer
  • Connection to 110 kV transmission network
  • MS and NS substations
  • Ancillary facilities
  • Auxiliary power requirement KW / 1 MW with synchro generator incl. all auxiliary systems and secondary structures
  • Refurbishment of penstock pipelines incl. refurbishment of all mechanical components
  • Redevelopment of old plant
  • EI&C upgrades for all equipment 

Main Data

Pump operation:

  • Nominal discharge: 73.5 m3/s
  • Nominal pumping: 149 m
  • Nominal pump output: 120 MW

Turbine operation:

  • Nominal water volume: 108.5 m3/s
  • Nominal net head: 129.5 m
  • Turbine output: 120 MW
  • Speed: 272.5-232.5 rpm

Client

Vattenfall Europe Generation AG & CO KG, Cottbus / Germany

Consultant

IM Maggia Engineerin Ltd and IUB Engineering Ltd as an engineering consortium

Construction period

2007–2010

Construction costs

120 mio. EUR

Scope of services

Construction project, draft & approval planning, some tendering (detail / main project).

Refurbishment of Niederwartha Pumped Storage Power Plant
Refurbishment of Niederwartha Pumped Storage Power Plant
Refurbishment of Niederwartha Pumped Storage Power Plant