Technology group Wärtsilä will supply engines for a 59 MW power plant extension in Moomba, South Australia. The expanded facility forms part of an energy infrastructure upgrade being carried out by one of Australia’s major oil and gas producers. The project will modernise ageing gas field infrastructure by replacing the compression at seven gas-driven compressor stations with a single centralised electric-driven station. The order with Wärtsilä was booked in Q3 2026.
The power plant will operate with five Wärtsilä 31SG engine generator units running with gas from the local Moomba fields. The Wärtsilä 31SG was selected for its proven efficiency, supporting cost-efficient energy production and contributing to the overall economics of the gas processing operation.
In addition to the engines, which are scheduled for delivery in mid-2027, Wärtsilä will provide advisory services to support the project.
“Used in numerous installations worldwide, the Wärtsilä 31SG has high efficiency and is particularly suited to applications where optimising the cost of gas production is a priority,” explains Kari Punnonen, Energy Business Director, Australasia at Wärtsilä Energy. “Our broad portfolio and proven track record of Wärtsilä 31SG installations certainly adds to its attractiveness. As our client progresses their strategy, the flexibility of the Wärtsilä 31SG engine may provide future opportunities to operate on sustainable fuels and support the integration of renewable energy sources into the site's energy mix.”
Media contact for more information on this release:
Katri Pehkonen
Communications Manager
Wärtsilä Energy
Mob: +358 50 591 6180
[email protected]
Image caption: Wärtsilä will supply engines for a 59 MW power plant extension in Moomba, South Australia. The power plant will operate with five Wärtsilä 31SG engine generator units. © Wärtsilä
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Wärtsilä Energy in brief
Wärtsilä Energy is at the forefront of the transition towards a 100% renewable energy future. We help our customers and the power sector to accelerate their decarbonisation journeys through our market-leading technologies and power system expertise. Our solutions include flexible engine power plants and services for the whole lifecycle of our installations. Our engines are future-proof and can run on sustainable fuels. Our track record comprises 81 GW of power plant capacity in 180 countries around the world. About 35% of our operating installed base is under service agreements.
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Wärtsilä in brief
Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy industries. We emphasise innovation in sustainable technology and services to help our customers continuously improve environmental and economic performance. Our dedicated and passionate team of 17,900 professionals in 199 locations in 78 countries shape the decarbonisation transformation of our industries across the globe. In 2025, Wärtsilä’s net sales totalled EUR 6.2 billion. Wärtsilä is listed on Nasdaq Helsinki.
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