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General Product Information

Flexible part load operation

The Part Load Upgrade optimizes and extends the part load operation range with compliant emissions (NOx and CO).

Your benefits

  • Enhanced operational flexibility: Reduction of GT min load up to 24 %-pts
  • Availability increase
  • Reduction of Equivalent Operation Hours consumption by avoiding start/stop cycles
  • Fuel savings and faster reaction time in responding to grid requirements
  • Increased secondary frequency response (SFR) readiness


PLU can be combined with all other upgrade products.  The Part Load Upgrade and the Fast Load Gradient is an optimum product combination to increase the flexibility.

Scope of Supply

  • Burner HR3, I&C SPPA-T3000
  • OTC+, combustion vibration monitoring
  • Implementation of Dilution Air Opening (DAO) if not already available
  • New DAO operation mode

Customer Extranet Portal

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Siemens Power Generation Services Customer Extranet Portal