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GE, PG 9171E, 1997, 375 MW Combined Cycle Power Plant, 50Hz, Dual Fuel

Description

  1. Headline Configuration
    1. 2 x GE PG 9171E gas turbines
    2. 2 x vertical HRSG
    3. 1 x GE steam turbine (2+1 configuration)
    4. Dual fuel
    5. Extender-upgraded hot gas path
    6. >95% historical availability
  2. Section 01 – Asset Overview
    1. A complete 375 MW class natural gas fired combined cycle power plant is offered for sale. The plant is configured as a classic 2+1 block: two General Electric PG 9171E heavy-duty gas turbines, two vertical heat recovery steam generators, one General Electric steam turbine, and the full balance of plant, electrical and auxiliary systems.
    2. The unit was commissioned in 1997 and operated in continuous baseload service under a long-term power purchase arrangement throughout its life. Operation was uninterrupted and disciplined: the plant recorded in excess of 95% availability and suffered no significant or chronic failures. Because the machines ran baseload rather than in cycling duty, thermal and mechanical ageing of the hot gas path and rotors is correspondingly low for the accumulated fired hours.
    3. Both gas turbines have been extender-upgraded by the original equipment manufacturer and are at the most current configuration for this frame. Following the last major outages, approximately 24,000 operating hours remain before the next scheduled maintenance intervention is required. Complete detailed maintenance records and outage reports are available, together with a full set of operating and maintenance spare parts.
    4. Total net output: 375 MW
    5. Block configuration: 2 + 1
    6. Year commercial operation: 1997
    7. Historical availability: >95%
    8. To next outage: ~24,000 h
  3. Plant Data
    1. Plant type: natural gas fired combined cycle (CCPP)
    2. Configuration: 2 x gas turbine + 2 x HRSG + 1 x steam turbine (2+1)
    3. Gross output: approx. 375 MWe
    4. Year of start-up: 1997
    5. Fuel: natural gas and distillate oil (dual fuel)
    6. Frequency: 50 Hz
    7. Grid connection: high-voltage transmission – level withheld under NDA
    8. Condenser cooling: sea water, titanium tubes
    9. Site: withheld – disclosed to qualified buyers under NDA
    10. Ownership / vendor: withheld – disclosed to qualified buyers under NDA
    11. Availability: complete plant, or major sub-packages by negotiation
    12. Ratings and operating hours throughout this document are rounded. Exact nameplate figures, performance test data and voltage levels are released to qualified buyers under NDA.
  4. Accumulated Operating Hours
    1. Gas turbine 1: approx. 179,000 h
    2. Gas turbine 2: approx. 172,000 h
    3. Steam turbine: approx. 176,000 h
  5. Section 02 – Key Selling Points
    1. Proven, well-documented machine. No significant or chronic malfunctions across the operating life. Detailed maintenance and outage reports are available for review.
    2. Low effective ageing. Continuous baseload operation under a firm offtake arrangement, rather than cyclic start-stop duty, which is the primary driver of hot gas path and rotor life consumption.
    3. OEM extender upgrade already performed on both gas turbines – the machines sit at the latest available configuration for the frame, with the associated performance and interval benefits.
    4. Approximately 24,000 running hours to the next scheduled outage, giving a new owner immediate generating availability without a near-term major maintenance capital call.
    5. True dual-fuel capability – natural gas and light fuel oil – providing fuel security and the ability to serve markets where gas supply is seasonal or constrained.
    6. Complete package. Gas turbines, HRSGs, steam turbine, generators, step-up and auxiliary transformers, water treatment, cooling, compressed air and emergency power are all included.
    7. Full spare parts inventory for both operation and maintenance is available with the plant.
    8. Mainstream, well-supported technology. GE 9E-class frames and Mark V controls are among the most widely installed in the world, with a deep global service, parts and relocation ecosystem.
    9. Deployment options. The plant suits a buyer seeking grid-scale dispatchable capacity, an industrial group requiring large captive generation with steam export potential, or a developer in a market where new-build lead times and capital cost make a relocated CCPP the faster route to power. The seller will discuss sale of the complete plant or of major sub-packages.
  6. Section 03 – Major Equipment: Gas Turbines
    1. The plant is equipped with two US-origin General Electric PG 9171E heavy-duty gas turbines. Each machine has fourteen combustion chambers and is arranged for dual-fuel firing on natural gas and distillate oil. Both units have been upgraded by the manufacturer to the current extender configuration.
    2. Number of units: 2
    3. Brand / model: GE / PG 9171E
    4. Capacity: approx. 120 MWe each (ISO conditions)
    5. Fuel: natural gas / distillate oil
    6. Efficiency: approx. 34%
    7. Compressor stages: 17
    8. Compression ratio: 1:12.4
    9. Turbine stages: 3
    10. Combustion chambers: 14
    11. Combustion chamber temp.: 1,100 – 1,200 °C
    12. Exhaust gas flow: approx. 410 kg/s
    13. Exhaust gas temperature: 550 °C
    14. Start-up: medium-voltage crank motor, 1,100 kW
    15. Oil & generator cooling: fan cooling + heat exchanger
    16. Fire protection: CO2, 7 t tank
    17. Compressor washing: online / offline water wash
    18. Control system: GE Mark V
  7. Gas Turbine Generators
    1. Number of units: 2
    2. Brand: Elin
    3. Capacity: 160 MVA
    4. Output voltage: 15,750 V
    5. Power factor: 0.85
    6. Cooling: air cooled
    7. Frequency: 50 Hz
  8. GT Step-Up Transformers
    1. Number of units: 2
    2. Capacity (ONAN/ONAF): 120 / 160 MVA
    3. Voltage LV / HV: 15.75 kV / transmission (withheld)
    4. Brand: ABB
  9. Gas Turbine Inlet Air Cooler (Chiller)
    1. Number of units: 1 (GT1 only)
    2. Brand: Trane
    3. Model: CDHG 2150 x 2
  10. Section 04 – Major Equipment: Steam Cycle – Steam Turbine
    1. Number of unit: 1
    2. Brand / model: GE / 270 T338
    3. Capacity: 130 MW
    4. HP section: 510 °C, approx. 50 kg/s, 80 bar
    5. IP section: 300 °C, 9 kg/s, 8 bar
    6. LP section: 157 °C, 2 kg/s, 3.5 bar
    7. Control system: GE Mark V
  11. Heat Recovery Steam Generators
    1. Number of units: 2
    2. Brand: Belleli (NEM design)
    3. Type: vertical
    4. Capacity: 2 x approx. 230 t/h
    5. HP section: approx. 50 kg/s, 80 bar
    6. IP section: 9 kg/s, 8 bar
    7. LP section: 2 kg/s, 3.5 bar
    8. Efficiency: approx. 80%
    9. Control system: Foxboro I/A Series
  12. Condenser
    1. Cooling medium: sea water
    2. Number of tubes: approx. 10,800
    3. Cooling surface area: approx. 7,200 m2
    4. Tube diameter: 19.5 mm
    5. Tube material: titanium
    6. Vacuum pressure: 30 mmHg
    7. Tube cleaning: sponge ball (Taprogge)
  13. Steam Turbine Generator
    1. Number of unit: 1
    2. Brand: Elin 9A3
    3. Capacity: approx. 155 MVA
    4. Output voltage: 15,750 V
    5. Power factor: 0.85
    6. Frequency: 50 Hz
  14. ST Step-Up Transformer
    1. Number of unit: 1
    2. Capacity (ONAN/ONAF): 120 / 160 MVA
    3. Voltage LV / HV: 15.75 kV / transmission (withheld)
    4. Brand: ABB
  15. Steam Island Notes
    1. The HRSGs are vertical three-pressure units of NEM design, fabricated by Belleli, and have run the same continuous baseload duty as the gas turbines.
    2. The condenser is titanium-tubed with a Taprogge sponge-ball on-load cleaning system, protecting tube condition throughout sea water service.
    3. The steam turbine has accumulated approximately 176,000 operating hours; reports are in the data room.
  16. Section 05 – Balance of Plant & Electrical: Boiler Feed Water Pumps
    1. Number of units: 4
    2. Brand: Nuovo Pignone
    3. Capacity: 220 m3/h
    4. Power: approx. 810 kW
    5. Discharge pressure: approx. 105 kg/cm2
  17. Condensate Pumps / Bypass
    1. Condensate pumps: 2, Sulzer
    2. Capacity: approx. 720 m3/h
    3. Power: approx. 375 kW
    4. Discharge head: approx. 165 m
    5. Steam bypass: Fisher – Contek, CVS-132-L-FSH-M3
    6. Bypass capacity: 100%
  18. Auxiliary Transformers
    1. Capacity (ONAN/ONAF) 15 MVA – windings generator voltage / MV – cooling ONAN – brand ABB – qty 1 – year 2016
    2. Capacity (ONAN/ONAF) 10 / 13 MVA – windings MV / MV – cooling ONAN/ONAF – brand ABB – qty 2 – year 1999
    3. Capacity (ONAN/ONAF) 750 kVA – windings LV / MV – cooling AN – brand AEG – qty 3 – year 1995
    4. Capacity (ONAN/ONAF) 750 kVA – windings LV / MV – cooling AN – brand AEG – qty 1 – year 1995
    5. Capacity (ONAN/ONAF) 8 / 10 MVA – windings MV / MV – cooling ONAN/ONAF – brand ABB – qty 1 – year 1995
    6. Voltage levels are withheld throughout this document as they identify the host grid. Full nameplate data and the electrical single-line diagram are released under NDA.
  19. Emergency Diesel Generator
    1. Number of units: 1
    2. Type: diesel generating set
    3. Engine: Cummins KTA Series
    4. Rating: approx. 500 kVA
    5. Output: low voltage, 3-phase
    6. Frequency: 50 Hz
    7. Year: 1996
  20. Air Compressors
    1. Number of units: 2
    2. Brand / type: Atlas Copco / ZR75W
    3. Discharge pressure: 10 bar
    4. Power: 75 kW
  21. Demineralised Water Plant
    1. Brand: AWE
    2. Capacity: 15 m3/h
    3. Carbon filters: 2
    4. Cation exchangers: 2
    5. Degasser tower: 1
    6. Anion exchangers: 2
    7. Mixed bed: 1
  22. Sea Water Pumps
    1. Number of units: 2
    2. Brand: Sulzer
    3. Motor power: approx. 1,900 kW
    4. Nominal voltage: medium voltage
    5. Speed: approx. 500 rpm
    6. Nominal capacity: approx. 22,800 m3/h
  23. Section 06 – Maintenance History
    1. Both gas turbines have been maintained on a disciplined combustion inspection / hot gas path / major inspection cycle since commercial operation. Outage type, year and the accumulated fired hours at each intervention are set out below. Full outage reports and inspection findings are available in the data room.
    2. Equipment serial numbers have been removed from this document and will be released to qualified buyers under NDA.
    3. CI – combustion inspection; HGP – hot gas path inspection; MI – major inspection; EXT – extender upgrade. Fired hours are rounded. Exact hours, outage dates and full inspection reports are released under NDA.
  24. Gas Turbine 1 – Outage History
    1. Commercial operation: 1994
    2. Outage 1 – type CI – year 1996 – fired hours 9,500 – interval (h) -
    3. Outage 2 – type CI – year 1997 – fired hours 19,000 – interval (h) 9,500
    4. Outage 3 – type HGP (EXT) – year 1998 – fired hours 27,000 – interval (h) 8,000
    5. Outage 4 – type MI (U/R) – year 2001 – fired hours 51,500 – interval (h) 24,500
    6. Outage 5 – type HGP – year 2004 – fired hours 75,500 – interval (h) 24,000
    7. Outage 6 – type MI – year 2007 – fired hours 105,000 – interval (h) 29,500
    8. Outage 7 – type HGP – year 2010 – fired hours 129,000 – interval (h) 24,000
    9. Outage 8 – type MI – year 2013 – fired hours 154,500 – interval (h) 25,500
    10. Outage 9 – type HGP – year 2022 – fired hours 179,000 – interval (h) 24,500
  25. Gas Turbine 2 – Outage History
    1. Commercial operation: 1996
    2. Outage 1 – type CI – year 1997 – fired hours 8,500 – interval (h) -
    3. Outage 2 – type CI – year 1998 – fired hours 17,500 – interval (h) 9,000
    4. Outage 3 – type HGP (EXT) – year 1999 – fired hours 26,500 – interval (h) 9,000
    5. Outage 4 – type MI – year 2002 – fired hours 52,500 – interval (h) 26,000
    6. Outage 5 – type HGP – year 2005 – fired hours 76,000 – interval (h) 23,500
    7. Outage 6 – type MI – year 2008 – fired hours 100,500 – interval (h) 24,500
    8. Outage 7 – type HGP – year 2011 – fired hours 122,500 – interval (h) 22,000
    9. Outage 8 – type MI – year 2014 – fired hours 144,500 – interval (h) 22,000
    10. Outage 9 – type HGP – year 2018 – fired hours 170,000 – interval (h) 25,500
    11. Remaining life to next intervention. Following the last outages on each machine, approximately 24,000 operating hours remain before the next scheduled maintenance action is required. A purchaser acquiring the plant for relocation therefore takes delivery of machines with a substantial maintenance interval already paid for.
  26. Section 07 – Sale Process
    1. The plant is offered on an as-is, where-is basis. The seller will consider offers for the complete plant as well as for major sub-packages, including the gas turbine trains, the steam turbine island and the heat recovery steam generators.
  27. Information Released Under NDA
    1. Exact plant location, site layout and access / logistics assessment.
    2. Owner identity, corporate structure and title documentation.
    3. Equipment serial numbers, nameplate data and OEM correspondence.
    4. Electrical single-line diagram, transformer nameplate data and grid connection voltage levels.
    5. Full outage and inspection reports, borescope findings and rotor life assessments.
    6. Spare parts inventory list with valuation.
    7. Performance test records and heat rate curves.
    8. Site inspection arrangements.
  28. Indicative Process
    1. 1 Expression of interest – buyer confirms interest, intended use (relocation or continued operation) and target destination market.
    2. 2 NDA execution – mutual non-disclosure agreement signed; identifying information and the technical data room released.
    3. 3 Technical review – buyer reviews maintenance history, spare parts list and performance records; technical Q&A with the seller's engineers.
    4. 4 Site inspection – physical inspection of the plant, including borescope inspection of the gas turbines if required.
    5. 5 Offer & negotiation – binding offer, agreement of commercial terms, dismantling and transport responsibilities.