The Wärtsilä 34SG is a four-stroke, spark-ignited, lean-burn gas engine generating set. Its agility and flexibility make the Wärtsilä 34SG generating set an excellent choice for both flexible baseload and balancing renewables applications. It also offers a unique fast-starting capability, which enables rapid response to fluctuations inherent to renewable generation.
Wärtsilä 34SG gas engine helps to provide an efficient, reliable and cost-efficient source of energy for power producers. It also provides enough spinning reserve for balancing whenever needed. The Wärtsilä 34SG engine generating set is extremely reliable as it is based on the well-proven Wärtsilä 32 engine, which has a track record from the mid-1990s. The Wärtsilä 34SG features a wide power output range from 5.6 to 9.8 MW, as it is available in 12V, 16V and 20V cylinder configurations. Wärtsilä engine power plants can be delivered both as EPC and Equipment Delivery contracts.
to full load
Electrical efficiency
generating sets delivered
| Wärtsilä 34SG gas engine generating set | |||
| Cylinder configurations | 12, 16, 20V | ||
| Cylinder bore | 340 mm | ||
| Piston stroke | 400 mm | ||
| Engine speed | 750 rpm (50 Hz), 720 rpm (60 Hz) | ||
| Performance * | |||
| 20V34SG | 16V34SG | 12V34SG | |
| Rated electrical power (kW) | 9 795 (50Hz) 9 388 (60Hz) | 7 830 (50Hz) 7 491 (60Hz) | 5 840 (50Hz) 5 580 (60Hz) |
| Electrical efficiency (%) | 48.9 (50Hz) 48.8 (60Hz) | 48.9 (50Hz) 48.7 (60Hz) | 48.0 (50Hz) 47.8 (60Hz) |
| Heat rate (kJ/kWh) | 7 363 (50Hz) 7 374 (60Hz) | 7367 (50Hz) 7396 (60Hz) | 7 501 (50Hz) 7 538 (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)
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