Kwinana Co-generation Power Plant committed to improving energy efficiency

About Kwinana

The Kwinana Co-generation power plant was commissioned in December 1996, 40km south of Perth in Western Australia.

The plant is primarily fuelled by Western Australia’s gas fields, north of Perth. The gas is transported to Kwinana through the Dampier to Bunbury Gas pipeline. It can produce over 120 MW of electricity which can supply about 6 per cent of Western Australia’s power needs.

As a co-generation plant, Kwinana supplies both steam and electrical power directly to the BP Australia Kwinana Oil Refinery and supplies electricity to the market, through the state-owned generator/retailer, Synergy.

The steam turbine production is supported by burning refinery fuel gas from the BP Refinery but is predominantly generated from the waste heat from the gas turbine exhausts. Through this process the plant is improving its overall efficiency.

The plant is certified for its environmental policy, health and safety and quality assurance demonstrating Kwinana’s and ENGIE’s commitment to international standards and best practices in energy generation.

Kwinana is jointly owned by ENGIE and Mitsui & Co Ltd with a combined 70 per cent ownership. The remaining 30 per cent is owned by Ratch Australia Corporation as part of the Perth Power Partnership.

More Information

Gas-fired power stations burn natural gas to produce electricity.

There are two main ways they do this – open cycle and combined cycle.

Open Cycle Gas Turbine

Open-cycle production is the most common method. Natural gas is burned to create a pressurised gas, which powers a turbine that is connected to a generator. The turbine turns the magnets in the generator to create electricity.

Combined Cycle

The Combined-Cycle Gas & Steam Turbine (CCGT) plant generates energy using two different types of turbines in combination: a gas turbine and a steam turbine. In essence, it recycles its fuel to maximise its electricity output. ENGIE’s Pelican Point Power Station uses this ingenious method of electricity generation.

The hot gases generated by burning natural gas power the gas turbine. The gases are still hot enough to generate steam in a heat recovery boiler which is then used in a steam turbine. The combination of these two thermodynamic cycles increases plant efficiency to in excess of 50%, which is much higher than the 35% to 40% achieved by traditional plants.

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Location: South of Perth, Western Australia
Maximum Capacity: 120 MW
Commissioned: December 1996


  • Co-generation power plant
  • 120 MW generation capacity
  • 20 Employees
  • Supplies both steam and electrical power
  • Fuelled by WA’s gas fields
  • Committed to energy efficient practices
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