Electric Motor Systems Platform

Electric motors and motor systems in industrial and infrastructure applications with pumps, fans and compressors in buildings are responsible for 53% of the world’s total electricity consumption. New and existing technologies offer the potential to reduce the energy demand of motor systems across the global economy by 20% to 30% with short payback periods.

4E’s Electric Motor Systems Platform (EMSA) raises worldwide awareness of the efficiency potential of motor systems and provides guidance and tools to exploit the energy performance of new and existing motor systems worldwide.

What have we learned about motor systems’ efficiency in the past 15 years and how has EMSA contributed to that?

Looking back over the past 15 years, experience shows that collaboration across governments, industry and experts — supported by sound analysis, aligned standards and practical tools — can help improve the efficiency of electric motor systems. EMSA has contributed to this shared learning by providing evidence, guidance and platforms for exchange, supporting ongoing efforts to improve policies, standards and real-world outcomes worldwide.

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How to compare air compressor energy efficiency—globally and consistently?

EMSA conducted an international round robin testing programme and developed a guide to the measurement of packaged air compressor specific energy and isentropic efficiency based on ISO 1217:2009. An Excel calculation tool has been developed to perform the stepwise calculation of the isentropic efficiency based on test results as specified in ISO1217.

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EMSA Newsletter

Read the latest Electronic Motor Systems newsletter about our events and current topics

Publications

Round Robin for small, packaged air compressors & Guide to air compressor energy efficiency measurement method

This report summarises the test results of EMSA’s international round robin testing programme, exchanging two commercial, packaged electric motor-driven screw compressors between three laboratories worldwide. It includes a practical guide for measuring specific energy and isentropic efficiency of packaged air compressors in line with ISO 1217:2009 and Amendment 1:2016.

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Policy Brief – Electric motor systems: why are they important?

This Policy Brief assesses the importance of electric motor systems in the global energy system. In 2023, electric motor systems were responsible for 53% of global electricity consumption. Their share in electricity consumption varies widely across sectors: 72% in industry, 36% in buildings, 87% in agriculture and 86% in the transportation sector.

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