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

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

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).