At Afarak SA’s Mogale Alloys plant in Krugersdorp, a cleantech company from Sweden is transforming toxic gases created by ferrochrome production into electricity — and at a cost that undercuts Eskom. In January 2018, the project was just a sketch on a serviette, but now, having successfully demonstrated its feasibility, Ripasso Energy has seven power-generating units en route from Sweden to SA, with the first expected to arrive in February. Together, the 45ft royal-blue containers will generate a total 2.8MW for the energy-intensive Mogale Alloys operations from its very own waste gas. SA business has been struggling to cope with growing electricity prices and Eskom has now applied for an annual tariff hike of 15% for the next three years. The ferro alloys industry, represented by the Ferro Alloy Producers’ Association, is a major energy user and has warned it will be particularly hard-hit should a double-digit tariff increase transpire. Ripasso’s offering, a container-based solutio...

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