The Background.

Clough were contracted by F Pritchard Australia Pty Ltd, a subsidiary of Black & Veatch International, for Mission Energy Holdings 116 megawatt Cogeneration Power Plant at Kwinana. The construction contract, undertaken by Clough, included site preparation, civil, structural, architectural, mechanical, piping, electrical and instrumentation and precommissioning services.

The Client: Black & Veatch Australia

With a heritage dating back more than 100 years to work on the Goldfields Pipeline in Western Australia, Black & Veatch has played a number of significant roles creating a resilient and sustainable supply for clients throughout Australia. With more than 2,000 professionals helping clients stay ahead in times of change and embracing the energy transition, digitalisation, and innovative technologies that create commercial success and a sustainable future.

Scope of Work.

The Kwinana plant is a clean, extremely efficient, combined cycle power station which incorporates two frame 6 General Electric gas turbines, each rated at 39.5 megawatt, two x 3-stage waste heat recovery boilers with supplemental gas firing, and one 40 megawatt General Electric condensing steam turbine.

Other work scope and equipment items included a de-aerator, various tanks, vessels, control and water treatment buildings, switchrooms, switchyard and cooling towers. The project supplies 40 megawatt of electricity to the BP Refinery with an additional 76 megawatt being fed into Western Power’s southwest interconnected energy grid. The electricity is produced from a combination of North  West Shelf natural gas and previously wasted gas from the BP oil refining process. The heat produced as a by-product of electricity generation is used to produce steam which is fed back into the oil refinery process or used for additional electricity generation. Using the heat makes the plant more efficient than a conventional power station. The project marked a number of significant milestones for Western Australia. As the first large-scale electricity cogeneration facility in the State it also represented the first sale by the private sector in the south west since de-regulation of the gas market and the first privately owned power station to sell electricity to both Western Power and a private consumer.

Project Details.

Location

Kwinana, Western Australia

Value

£16M

Duration

17 Months

Workhours

283,166