The Wärtsilä 50SG gas engine is a four-stroke, spark-ignited gas engine generating set. High efficiency in a small footprint combined with great reliability and flexibility makes this solution ideal for flexible baseload and balancing applications.
Wärtsilä 50SG gas engine offers unique fast-starting capability, which enables rapid response to fluctuations inherent to renewable generation. The solution also supports you towards decarbonisation with its low greenhouse gas emissions and capability of hydrogen blending. Wärtsilä engine power plants can be delivered both as EPC and Equipment Delivery contracts.
to full load
Electrical efficiency
MW installed capacity
| Wärtsilä 50SG gas engine - Engine generating set | ||
| Cylinder configurations | 18V | |
| Cylinder bore | 500 mm | |
| Piston stroke | 580 mm | |
| Engine speed | 500 rpm (50 Hz), 514 rpm (60 Hz) | |
| Performance * | ||
| 18V50SG | ||
| Rated electrical power (kW) | 18 434 (50Hz) 18 875 (60Hz) | |
| Electrical efficiency (%) | 50.2 (50Hz) 50.0 (60Hz) | |
| Heat rate (kJ/kWh) | 7 165 (50Hz) 7 207 (60Hz) | |
| Loading and unloading | ||
| Connected to grid | Full load | |
| Regular start time (min:sec) | 00:30 | < 5 |
| Fast start time (min:sec) | 00:30 | < 2 |
| Stop time (min) | 1 | |
| Ramp rate (hot, load/min) | > 100% | |
| Minimum Load | ||
| Unit level | 10% | |
| Plant level | 1% | |
| * Rated electrical power and electrical efficiencies are given at generator terminals at 100kPa ambient pressure, 25°C suction air temperature and 30% relative humidity, and without engine driven pumps. Power factor 1.0 (site). Electrical efficiency with 5% tolerance. Site conditions, fuel and applicable emission limits may have an impact on performance figures. Please contact Wärtsilä for project-specific performance data. Emission figures for LBF must be evaluated case by case. Catalyst systems are designed based on project specific requirements. Certain fuel components are poisonous for catalyst elements. Maximum amount of these components to be limited in the fuel in applications where catalyst system is installed. |
| Disclaimer: The information contained herein is provided for informational purposes only and may not be incorporated, in whole or in part, into any agreement or proposal. No representation of any kind is made in respect of any information contained herein and Wärtsilä expressly disclaims any responsibility for, and does not guarantee, the correctness or the completeness of the information. The calculations and assumptions included in the information do not necessarily take into account all the factors that could be relevant in a particular case. Information herein shall not be construed as a guarantee or warranty of the performance of any Wärtsilä technology, equipment or installation. |
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Liquid fuels
Natural gas
Liquid fuels and gas
Flexible baseload (>6000 running hours annually)
Intermediate load (2000 - 6000 running hours annually)
Peaking and grid stability (<2000 running hours annually)
Emergency
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