BMW is the leader in changing its focus to a more eco-friendly and sustainable production line – and has now teamed up with a South African startup to create a factory that uses renewable energy. Working with Bio2Watt, the biomass project aims to use run their production on carbon neutral energy by 2020.
The BMW Rosslyn Plant, which builds the 3 Series, is located just north of Pretoria and is using the excess cattle dung and organic waste from the region for the biomass plant. Construction began in the spring of 2014 and is close to a feedlot that has about 20 000 cattle – and rainwater dams.
In large biogas digesters, dung, organic waste and water are mixed with microorganisms. The resulting methane gas is fed into gas engines to produce electricity. Using this process, roughly 30 percent of all the electricity required by Plant Rosslyn will be generated by biomass.
The Bio2Watt plant is designed to produce up to 4.4 megawatts of electricity and plans to work with the City of Tshwane which runs a landfill site just eight kilometers from the Rosslyn plant – making it a potential supplier of methane gas. The current rate of sustainable energy is around 30%. How’s that for an answer to our power crisis.
[source: news24]
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