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BIO2WATT’S BIO-ENERGY COMES TO LIFE! Bronkhorstspruit Biogas Plant

 Photo from the site (above) shows the mix tank and primary and secondary digesters.

Photo from the site (above) shows the mix tank and primary and secondary digesters.


The Bronkhorstspruit Biogas Plant, the first of its kind in Africa, has been designed, manufactured, supplied and installed by Bosch Projects, in conjunction with Danish Biogas Technology partner, ComBigaS, is due to produce its first export bio-power towards the end of May / early June 2015.Significant challenges have been overcome by the project team in order to ensure that the project is commissioned on time and within budget. Cold commissioning has been successfully completed and the plant Operator, Bosch Munitech, has already established a presence on site. Intensive commissioning activities have been undertaken with ComBigaS to ensure that the introduction of biomass is carried out safely and in accordance with the required procedures. The plant output will ramp up over a period of four months to reach the expected production output of 4.2MWe. The Thermophilic digestion process will take this amount of time for the micro-organism population to grow sufficiently in order to yield the design quantity of Methane production necessary to generate the rated capacity output.Sean Thomas, MD of Bio2Watt, says “The bio-power produced will be consumed by the BMW motor assembly plant in Rosslyn through a power wheeling agreement with Eskom and the City of Tshwane Municipality.”

Butch Carr –


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