low-cost household energy

Paraffin, coal and wood are fuels commonly used in South Afrian township homes that don't have access to electricity. But they are are relatively expensive, a common cause of house fires, and a source of respiratory problems. A company called GreenHeat in Durban is manufacturing an ethanol gel from sugar cane that is better than paraffin on all three counts. (Apparently the gel costs more than paraffin, but lasts much longer.) Sold with a stove, the gel is used either for cooking or heating.

Is this the end of the smog-fuelled Joburg sunrise?