Efficiency rating
pcEfficiency rating is a measure of the performance or output of a device relative to its input, expressed as a percentage.
expanded
An efficiency rating quantifies how effectively a device converts energy input into useful output. This rating is critical for assessing the operational cost and environmental impact of electronics. Devices with higher efficiency ratings reduce energy waste, which is important for sustainable practices in areas such as computing, HVAC systems, and industrial machinery.
examples
A desktop computer power supply unit (PSU) with an 80 Plus Titanium certification achieves at least 94% efficiency at 50% load.
This efficiency rating is commonly used in data centers where energy consumption and heat output need to be minimized.
An air conditioning unit with a Seasonal Energy Efficiency Ratio (SEER) of 18 requires less energy to provide the same cooling output compared to a unit with a SEER of 13.
High SEER-rated air conditioners are often used in residential buildings to increase energy savings and reduce operational costs.