Siemens, SGT-300, 2007, Gas Turbine Cogeneration Plant, 7.9 MW, 50 Hz, 6.3 kV, Natural Gas, DLE (Same as V-3260)

Overview

1. Used Siemens SGT-300 TEMPEST gas turbine cogeneration plant

2. Includes Converteam generator and complete Heat Recovery Train

3. Fuel: natural gas

4. Dry Low Emissions (DLE)

5. Year of manufacture: 2007

6. Commissioned: 2008

7. Operated until November 2025

Performance

1. Electrical output (ISO): 7.9 MW

2. Site output (actual): approx. 7.6 MW

3. Electrical efficiency: approx. 30.5%

4. Exhaust gas temperature: 545 C (1,013 F)

5. Exhaust gas mass flow: 30.2 kg/s (66.6 lb/s)

Generator

1. Converteam AC generator

2. Rating: 9,800 kVA

3. Voltage: 6.3 kV

4. Frequency: 50 Hz

5. Speed: 1,500 rpm

Operating Data

1. Operating hours: 116,131 h

2. Number of starts: 677

Control System

1. Controller: Allen-Bradley ControlLogix

2. Parallel with the grid and island mode

Scope of Supply

1. Gas turbine generator package

2. Reduction gearbox

3. Heat Recovery Train H210-H430

4. Two exhaust stacks

5. Spare parts

6. Technical archive

Heat Recovery Train

1. H210 DOWTHERM A thermal oil: 4,300 kW (5,766 hp)

2. H310 SANTOTHERM 66 thermal oil: 3,880 kW (5,203 hp)

3. H410 high-pressure steam, 25 barg: 1,671 kW (2,241 hp)

4. H420 low-pressure steam, 3.5 barg: 1,931 kW (2,590 hp)

5. H430 hot water: 2,428 kW (3,256 hp)

Service History

1. 2020: generator overhaul

2. 2021: grid-parallel and island-mode tests, up to 7 MW

3. 2023: Type A service and borescope

4. June 2025: replacement of the high-pressure bladed disc, seals and reconditioned SSS coupling, borescope

5. September 2025: Type A service

6. November 2025: end of operation