Carbon capture

BP and Rio Tinto are working on plans for the potential development of a $1.5 billion coal-fired power generation project at Kwinana in Western Australia that would be fully integrated with a carbon capture and storage facility to reduce its emissions of greenhouse gases.

This will be the first new project for Hydrogen Energy, the new company launched by BP and Rio Tinto last week.

The planned project would be an industrial-scale coal-fired power and carbon capture and storage project. It would generate enough electricity to meet 15 per cent of the demand of south west Western Australia, while each year capturing and permanently storing about four million tonnes of carbon dioxide which otherwise would have been emitted to the atmosphere.

The project would gasify locally-produced coal from the Collie region to produce hydrogen and carbon dioxide. The hydrogen would be used to fuel the power station and around 90 per cent of the carbon dioxide would be captured and stored permanently in a deep underground geological formation.

The costs of this low-carbon hydrogen-fuelled power generation are higher than those of traditional power generation. For the project to be economical and able to compete effectively in the electricity market, it would require appropriate policy support and a regulatory environment which recognises and encourages the low-carbon benefits it can deliver.

Subject to the successful outcome of detailed engineering and commercial studies, and providing government policy is in place to make the project commercially viable, a final investment decision to develop the project could be made in 2011, with the project coming into operation after a three year construction period.

The project’s gasification facility and power station would be located in Kwinana, 45km south of Perth, alongside BP's refinery and Rio Tinto’s Hismelt facility. The power station would be capable of producing 500MW of low-carbon electricity or enough power for half a million homes. At the same time, about four million tonnes of CO2 each year would be captured, transported and permanently and securely stored in a geological formation deep beneath the seabed of the Perth basin.

This would be the first hydrogen-fuelled power project to store CO2 in a saline formation, a type of geological structure which, the company aid, is more common globally than suitable oil and gas reservoirs. Kwinana is an ideal location for a project of this type.