Own generation projects such as a 2.0 MW methane powered electricity plant at the Beatrix gold mine, owned by Sibanye, and commissioned at the end of March 2013 will become more common as mines try to reduce their reliance on Eskom supplied power. Beatrix, located in the Free State, captures methane which being highly flammable presents an explosion risk at the mine’s underground workings.
Beatrix does having higher methane emission levels than other mines, and in time could produce 4.0 MW of electricity from this captured gas. The mine uses 82 MW of power, so while small the offset of electricity from the grid, will result in cost savings for the operation.
The mine plans to capture more of the gas it currently flares (1,600 litres a second) while 260 litres a second is sufficient for generating 2.0 MW.