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).
