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Downer – variable speed drive takes the pressure off asphalt costs

Case studies
13 April 2011

Downer's asphalt plant in Penrose is the company's largest in New Zealand and produces road and paving products for distribution in the Auckland area.

An energy audit identified an opportunity for cost reduction for their fans, by using more efficient airflow control.

Read the case study below to see how Downer replaced the baghouse fan outlet damper system with a variable speed drive (VSD) and reduced electricity use by 67,100kWh per annum.