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Oaky Creek Waste Coal Mine Gas Power Station is located Oaky Creek Coal Mine located in the lower Bowen Basin, Queensland. The power station was commissioned in 2006.
The power station was initially designed with ten individual 1MW containerised spark ignition gas generators operating exclusively on waste coal mine gas supplied from Oaky 1 and Oaky North Coal Mines. During the latter stages of construction it was decided to relocate two units from Teralba Power Station and a further two units in 2007, bringing current capacity to 14MW. The power Plant plant is located between both mines in a subsidence free area.
Waste mine gas is transferred from the mine’s existing gas drainage wells by gas extraction pumps located within the power station compound. Surface laid polyethylene pipelines directly connect the power station to Oaky North and Oaky 1 Mine’s operating surface to both in seam and goaf gas drainage wells. The connection points of the pipelines to the surface well heads are designed to move from time to time as a result of advancing mining operations. The connection points will generally be located above the current longwall mining operations in both mines.
The power station gas handling system is designed for bypass gas venting in the event that all engines are not operating or there is a trip to the generating facility.
The power station supplies power directly into the mine’s German Creek feeder in close proximity to the Oaky North Substation for transmission to Ergon’s Lilyvale Substation. The power station is electrically isolated from the mine.
Oaky Creek Power Station is estimated to deliver greenhouse gas abatement of up to 2.6 million tonnes of carbon dioxide equivalent over the current Kyoto period (2008-2012). The Australian Greenhouse Office has supported the development and construction of the project.
In May 2006, an additional two 1MW units were installed at Oaky Creek Power Station being relocated units from Envirogen’s Teralba Power Station. The relocation of these units came about because of greater consistency and volume of waste mine gas at Oaky Creek and a resultant increase in greenhouse gas abatement during the Australian Greenhouse Office Target Abatement period.
Plans are in place to further expand the power station to 20MW and planning approvals have been obtained for the upgrade.
What is waste coal mine Methane?
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