à‚ Sibanye Gold’s Beatrix gold mining operations in South Africa has installed a 2 MW on-site power generation solution supplied by Aggreko that utilises naturally occurring methane gas released during mining.
The 2 MW plant generates additional power for Beatrix from a resource which was previously being flared.
As this was a completely new initiative, an accurate understanding of the reliability of the gas supply was unclear and as a result Sibanye Gold opted for an Aggreko rental solution as the flexibility of rental meant that the precise amount of generation capacity could be easily tailored to fit the amount of gas supply as it became clearer. Aggreko also developed a system incorporating a gas accumulator and a methane sensor.
‘We knew that we wanted to generate electricity from the gas as it was a precious resource that was being completely unutilised through flaring,’ commented Dirk van Greuning, Environmental Engineering Manager, Sibanye Gold, ‘Due to the precise characteristics of the gas supply being uncertain, the flexibility offered by the Aggreko solution was very attractive compared to the option of buying a fleet of generators.’