Economic and Environmental Benefits of Energy Efficient Motors
Pace Today, July 27, 2015. Image credit: miniformat65
International efficiency classes
Two important elements of any MEPS are the rules that specify how efficiency should be measured and what efficiency classes should be used. The International Electrotechnical Commission (IEC) uses IEC 60034-30:2008 to specify International Efficiency classes, referred to as IE levels (IE2, IE3, IE4).
Currently, under the Australian Greenhouse and Energy Minimum Standards (GEMS) Act 2012, the compulsory level in Australia and New Zealand is based on standard AS1359.5:2004 which closely equates to IE2 efficiency levels (0.73 kW to < 185 kW). It is expected that Australia will also adopt the International Standard for efficiency levels and IEC60034-2-1 for efficiency test methods in the next few years and eventually align with IE3 International Efficiency levels and scope.
Sustainability and carbon footprint reduction through high efficiency motors
Putting legalities aside, the use of energy saving solutions has significant economic and environmental benefits for Australian industries, including reducing costs, reduced carbon emissions and optimisation of overall energy use. Preventing waste and increasing energy efficiency is the best way to achieve sustainable energy.
With around 40% of all global energy demand estimated to be related to electric motor applications, any initiatives to increase energy efficiency by using high efficiency electric motors has the potential to make a real contribution to reducing global energy demand and carbon emissions.