Unregulated asynchronous motors are still frequently used to drive fans in refrigeration, air conditioning, ventilation and building technology. However, they have a serious disadvantage: comparatively low efficiency. This has an impact on energy consumption in practically all applications.
It is also possible to save energy: ebm-papst is able to replace the mostly inefficient fans with AC motors with highly efficient EC technology using the same mechanics. Switching from AC to EC fans not only pays off for the environment and the user's wallet, but also increases comfort at the same time.