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 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, that 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.
The McArthur River Mine in Australia, is one of the world’s largest providers of zinc in bulk concentrate form. Global energy producer EDL is responsible for supplying power to the mine. Wärtsilä has been a trusted partner for EDL for many years now, delivering gas engines and providing lifecycle services for condition-based maintenance to the power plant. The end result is better fuel efficiency, a low levelised cost of electricity, lower OPEX and guaranteed availability.
to full load
generating sets delivered
|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)|
|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%|
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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