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Germany:
Engineering Services for the Hybrid Grid Connection (380 and 110 kV) of the new "Niehl 3" Combined Cycle Power Plant, Cologne

The new combined cycle power plant "Niehl 3" with a capacity of 450 MWel and 265 MWth required the construction of a new grid connection at the power plant site in Cologne Niehl. This grid connection is designed as hybrid connection, so that electricity can be fed on the 380 kV level into the grid of the transmission grid operator Amprion GmbH as well as into the own distribution grid of RheinEnergie AG. The special feature here is the use of a transverse control transformer, which enables controlled feed-in into RheinEnergie's own 110 kV grid.The new combined cycle power plant "Niehl 3" with a capacity of 450 MWel and 265 MWth required the construction of a new grid connection at the power plant site in Cologne Niehl. This grid connection is designed as hybrid connection, so that electricity can be fed on the 380 kV level into the grid of the transmission grid operator Amprion GmbH as well as into the own distribution grid of RheinEnergie AG. The special feature here is the use of a transverse control transformer, which enables controlled feed-in into RheinEnergie's own 110 kV grid.

Services
  • Services phases 1 to 9 of HOAI (German official scale of fees for services by architects and engineers)
  • Short circuit and load flow calculations
  • Concept and basic design
  • Elaboration of detailed design and technical specifications
  • Tender documents, assistance for tendering and award
  • Construction supervision, testing and commissioning
Technical Data
  • New substation building for a 30 kV switchgear
  • New 380 kV GIS switchgear with gas-insulated line-out
  • New phase shift transformer 380/110/10 kV, 220 MVA
  • One new 110 kV AIS outdoor transformer bay
  • Auxiliary supply and cable connections
Client:
RheinEnergie AG
Financing:
RheinEnergie AG
Period:
2012 - 2015
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