--- title: Energy efficiency for EC motors description: Explaining the difference between motor types for saving power. --- [Skip to content](https://support.aofrio.com/energy-efficiency#main-content) - [English](https://support.aofrio.com/energy-efficiency) - [Español - México](https://support.aofrio.com/es-mx/eficiencia-energética-para-motores-ec) - [Português - Brasil](https://support.aofrio.com/pt-br/eficiência-energética-para-motores-ec) English Show submenu for translations ![](https://support.aofrio.com/hs-fs/hubfs/e7b764c0-c89a-4e26-92a2-ab6256f23c6a_medium.png?width=100&height=75&name=e7b764c0-c89a-4e26-92a2-ab6256f23c6a_medium.png) Open main navigation Close main navigation - - [English](https://support.aofrio.com/energy-efficiency) - [Español - México](https://support.aofrio.com/es-mx/eficiencia-energética-para-motores-ec) - [Português - Brasil](https://support.aofrio.com/pt-br/eficiência-energética-para-motores-ec) English Show submenu for translations - Contact us Contact us How can we help you? - There are no suggestions because the search field is empty. 1. [Help Center](https://support.aofrio.com/?hsLang=en) 2. [Support for your role](https://support.aofrio.com/support-for-your-role?hsLang=en) 3. [OEM buyer or engineer](https://support.aofrio.com/support-for-your-role?hsLang=en#oem-buyer-or-engineer) April 25, 2024 # Energy efficiency for EC motors ## Explaining the difference between motor types for saving power. Energy efficiency for commercial refrigeration motors varies depending on the manufacturer, power rating and each application’s conditions. As a general rule of thumb, shaded pole motors range from 15-25% efficiency, permanent split capacitor motors range from 30-50% efficiency, and EC motors achieve 60-75% efficiency. After the compressor, refrigeration fans are one of the highest energy consumers in an HVAC or refrigeration product so improving motor efficiency by using EC motors is one of the most cost-effective “bolt on” efficiency upgrades that you can make. It offers a similar advantage as changing to LED lighting from more traditional lighting technologies. On a typical glass-front upright self-contained (plug-in) cabinet, upgrading to EC motors from a shaded pole motor improves overall system efficiency by 20-25%. - [Support for your role](https://support.aofrio.com/support-for-your-role?hsLang=en#main-content) - [Service technician](https://support.aofrio.com/support-for-your-role?hsLang=en#service-technician) - [Hardware installer](https://support.aofrio.com/support-for-your-role?hsLang=en#hardware-installer) - [OEM buyer or engineer](https://support.aofrio.com/support-for-your-role?hsLang=en#oem-buyer-or-engineer) - [Fleet manager](https://support.aofrio.com/support-for-your-role?hsLang=en#fleet-manager) - [Food Safety manager](https://support.aofrio.com/support-for-your-role?hsLang=en#food-safety-manager) - [Your AoFrio account](https://support.aofrio.com/support-for-your-role?hsLang=en#your-aofrio-account) - [Frequently Asked Questions (FAQ)](https://support.aofrio.com/support-for-your-role?hsLang=en#frequently-asked-questions-faq) - 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