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Siemens, SGT5-2000E, 2015, 700 MW Combined Cycle, 50 Hz, 0 Operating Hours

Description

  1. Overview
    1. Three Siemens SGT5-2000E (60 Hz) gas turbine power trains configured as 1×1 combined-cycle blocks (each: one gas turbine, one heat recovery steam generator, DLN, and one steam turbine), offered together as a complete ~700 MW package at 0 operating hours.
    2. Year of manufacture 2015.
    3. Zero operating hours.
    4. Frequency: 60 Hz.
    5. The SGT5-2000E is Siemens Energy's proven E-class 60 Hz machine, valued for high reliability, strong cycling capability, and fuel flexibility in continuous and cyclic duty.
    6. An optional SI3D+ performance upgrade raises total plant output to approximately 814 MW and carries a Siemens Energy warranty. The upgrade can be installed while the units are being disassembled.
    7. Storage: all three units are stored indoors. Two are partially assembled and one remains in its original factory packaging.
  2. Simple Cycle Gas Turbine Performance — ISO Conditions
    1. Ratings at ISO conditions (15°C / 59°F, sea level, gross, natural gas, no inlet/exhaust losses). Actual performance varies with site conditions, altitude, ambient temperature, and fuel quality.
    2. Gas turbine: Siemens SGT5-2000E - 60 Hz, year of manufacture 2015.
    3. Power output (gross): 166 MW (simple cycle, ISO).
    4. Gross efficiency: 36.5 to 37.6%.
    5. Gross heat rate: 9,582 kJ/kWh (~9,082 BTU/kWh).
    6. Turbine speed: 3,000 rpm.
    7. Pressure ratio: 12.8:1.
    8. Exhaust mass flow: 558 kg/s (1,230 lb/s).
    9. Exhaust temperature: 536°C (997°F).
    10. NOx emissions: ≤ 15 - 25 ppmvd @ 15% O₂ (dry, natural gas; DLE / hybrid burners, no water injection typically required for gas).
    11. Frequency: 60 Hz.
  3. Combined Cycle Performance (SCC5-2000E with HRSG)
    1. Exhaust heat from each gas turbine is recovered in a heat recovery steam generator (HRSG) — typically a 2-pressure, no-reheat design — to raise steam for a dedicated steam turbine, substantially boosting plant output and efficiency. Net plant values at ISO conditions:
    2. This offering — configuration: 3 × 1×1 blocks (each: 1 gas turbine + 1 HRSG + 1 steam turbine).
    3. 1×1 net plant power: ≈ 233 MW net - 53.3% net efficiency - 6,755 kJ/kWh (6,403 BTU/kWh) net heat rate.
    4. 1×1 (alternative rating): ≈ 250 MW net - 52.4% net efficiency.
    5. Total — 3 units (this offering): ≈ 700 MW net combined cycle.
    6. With SI3D+ upgrade: up to ≈ 814 MW total — includes Siemens Energy warranty.
  4. Fuels & Emissions
    1. Primary fuel: natural gas — excellent performance and low emissions.
    2. Fuel flexible: LNG, low-calorific / sour gases (containing CO₂, H₂S, N₂), distillate oil, crude / heavy fuel oil, biodiesel, kerosene, condensate, and others on request. Dual-fuel capable.
    3. NOx controlled effectively on natural gas via dry low-NOx (DLE) or hybrid burners.
    4. Part-load emissions remain compliant down to ~45% load with constant exhaust temperature — beneficial for HRSG operation.
  5. Physical Dimensions & Weight (Gas Turbine)
    1. Length: ≈ 10.3 m (34 ft) core engine.
    2. Width: ≈ 4.0 m (13 ft).
    3. Height: ≈ 4.0 m (13 ft) core; up to ~7.5 - 12 m (24.6 to 39.4 ft) including combustion silos.
    4. Weight: ≈ 189 t (417,000 lb) core; ~234 t including combustion chambers (older references).
    5. Full combined-cycle plant: GT + HRSG + steam turbine + balance of plant — substantially larger and site-specific.
  6. Key Features & Benefits
    1. High reliability and availability for continuous or cyclic operation.
    2. Fast start-up and good transient response; variable inlet guide vanes support grid frequency.
    3. Easy maintenance: accessible silo combustors; individually replaceable blades / vanes (often without full rotor lift); on-site rotor de-stacking possible.
    4. Strong cycling capability and hydraulic clearance optimization for protection during transients.
    5. Proven in numerous reference plants worldwide.
  7. Emissions & Environmental Performance
    1. All three units come with dry low NOx (DLN) combustion to reduce emissions.
    2. Expected emissions (at ISO conditions, natural gas fuel).
  8. Pollutant: Expected Performance (Base DLN)
    1. NOx (nitrogen oxides): ≤ 15 ppmvd (dry, corrected to 15% O₂) without water/steam injection — the standard guaranteed DLN performance in simple- or combined-cycle. Field performance is often lower (single digits in optimized/tuned units), depending on load, ambient conditions, and maintenance.
    2. CO (carbon monoxide): typically low, often < 10 - 25 ppm (exact guarantees vary by project; the DLN system keeps CO controlled across the load range).
    3. UHC (unburned hydrocarbons): generally very low with DLN.
    4. Particulates / smoke: negligible on natural gas.
    5. CO₂: tied to efficiency / heat rate (no specific low guarantee beyond fuel carbon content).
  9. Optional SCR with Oxidation Catalyst
    1. Adding SCR (for NOx) and an oxidation catalyst (for CO and VOCs) significantly reduces emissions beyond the base DLN performance. These are common in combined-cycle plants for strict regulatory compliance.
  10. Pollutant: With SCR + Oxidation Catalyst
    1. NOx (nitrogen oxides): down to ~2 - 5 ppmvd (or lower) at 15% O₂. Siemens literature notes down to 2 ppmvd achievable with SCR on similar large-frame turbines; SCR provides 80 to 95%+ reduction over base DLN (≤ 15 ppm), depending on design, ammonia injection, catalyst layers, and temperature window.
    2. CO (carbon monoxide): ~5 - 10 ppm or lower — the oxidation (CO) catalyst oxidizes CO to CO₂, often achieving < 10 ppm.
    3. VOC / hydrocarbons (UHC): very low, typically < 5 ppm or near detection limits with the oxidation catalyst.
    4. Particulates / PM: minimal on natural gas (already very low with DLN); catalyst systems help further.
    5. Ammonia slip (from SCR): typically controlled to < 5 - 10 ppm (permitted levels vary by jurisdiction).
  11. Key Factors Affecting Performance
    1. Exhaust temperature: SCR works best in a specific window (~300 - 400°C / 570 - 750°F), common after the HRSG in combined-cycle setups.
    2. Load range: good performance maintained at part load with proper tuning.
    3. Fuel: best on clean natural gas; liquid fuels or contaminated gas may require adjustments / increased reagent use.
    4. Plant configuration: most effective in combined cycle (with HRSG), where exhaust is routed through the catalysts. Simple-cycle applications are possible but less common.
    5. Site-specific guarantees: actual numbers are project-specific and depend on catalyst supplier (e.g., BASF, Johnson NG (1 - 3 layers), and local regulations. Permits often target < 2 - 5 ppm NOx.
  12. Quantity
    1. 3 units available.