GE tests new turbine upgrade, secures orders from two plants

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GE debuted its High Efficiency upgrade for the GT26 turbine.

GE implemented the GT26 HE, a High Efficiency (HE) upgrade for the GT26 fleet, at Uniper’s Enfield Power Station in north London. The upgrade was installed to improve the performance and extend the maintenance interval of the combined cycle plant. GE also announced new orders for the upgrade secured from Enel Argentina’s Central Dock Sud and Keppel Merlimau Cogen Pte Ltd (KMC), respectively in Argentina and in Singapore.

Test results proved key performance benefits:

  • Higher efficiency for combined-cycle power plants:
  • Up to 2% base load increased efficiency.
  • Up to 1% increased efficiency in part load
  • Increased plant output of up to 25 MW per unit
  • Extended inspection intervals up to 32,000 hours.

Enel Argentina’s subsidiary Central Dock Sud. (CDS) selected GE’s GT26 HE upgrade for its 755 MW Dock Sud Power Station located in Buenos Aires. The HE upgrade will be installed on two units and is expected to inject over 100 MW into the grid. The HE upgrade has been engineered to maintain the dual fuel capability (diesel backup fuel in winter in case of natural gas shortage) and to allow for full retirement of the high-fogging system securing an additional 45 MW during summer.

Keppel Merlimau Cogen Pte Ltd (KMC) has selected the GT26 HE platform, for its combined cycle 1300 MW power plant in Jurong Island, Singapore. GT26 HE is expected to be installed in the second half of 2022.

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