The energy efficiency issue in industry is more topical than ever and the data recently issued by IEA International Energy Agency, following a report, reveal that industry uses 37% of global energy requirements and produces 24% of total CO2 emissions. In particular, about 70% of electricity consumptions in industry can be associated to electric motors.
They refer to various types of motors, small size ones, equipping household appliances but also automation devices of car windows; average-size ones, which for instance are installed in conditioning systems, machines tools, lifts or in subways, as well as motors used in ships, trains and heavy-duty equipment.
Among the other possible actions to reduce the environmental impact, in the report they underline it is important to use high-efficiency electric motors (starting from IE3, Premium Efficiency according to International Efficiency regulations) and variable-speed drives for the control of motors. The achievable results are noteworthy. In comparison, for instance, with a conventional pumping system that features 28% efficiency, with a high energy efficiency system an 82% percentage is reached. Therefore, if the technology is available, what is expected is a strong signal by Institutions to favour their faster adoption and, at the same time, companies must be convinced that nowadays an enhancement of electric motors’ efficiency is necessary.