Solar farm adds to power mix Picture: Gary Sissons MOTORISTS on Peninsula Link may have seen Melbourne Water’s sign, pictured, advertising a proposed solar farm at the Eastern Treatment Plant, Bangholme. The farm is one of the many ways the authority says it is adapting its operations to “prepare for a changing climate, reducing our own carbon emissions and generating more renewable energy”. The Eastern Treatment Plant, opened in 1975, treats about 330 million litres of sewage a day – about 40 per cent of Melbourne’s total. It already makes biogas that provides about 30 per cent of the energy needed to run the plant each year; the proposed solar farm will produce a further 10 per cent.