Wastewater treatment plants could depend less on Eskom by using the biogas formed onsite. This is according to wastewater solutions company WEC Projects. The company explains that methane rich biogas, which is formed as a by-product of sewage treatment, can be used to fuel gas engine generators and contribute towards a percentage of the electricity used to operate water and wastewater plants. South Africa has around 50 major municipalities. WEC said that these municipalities have wastewater treatment plants large enough to operate an effective biogas plant, which in turn, could possibly save about 30MW of electricity. “As far as energy savings go, a figure of this size will have a pretty significant impact on both their own costs and on the electricity provider’s drive towards energy efficiency,” Jason Gifford, WEC Projects’ energy division spokesperson said. The company is exploring the possibilities of biogas as an alternative energy source to achieve “true energy efficiency”.
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