Energy efficient power supplies off the shelf

Sunpower has signed up to the 80 Plus programme to integrate more energy efficient power supplies into its range of off the shelf products; custom units can also be designed to this standard on request. The 80 Plus performance specification requires power supplies to be 80% energy efficient or greater at 20, 50 and 100% rated load with a power factor of 0.9 or greater. The test is very demanding, particularly achieving 80% efficiency at only 20% load.

A 80 Plus certified power supply not only saves energy costs they also increase the reliability of a system through reduced heat output and therefore reduces maintenance costs, lengthens equipment life and generally improves the comfort of the working environment (reduced heat output calls for minimised need for noisy PC fans, making a quieter office environment).

A selection of 80 Plus certified products can be found on the Sunpower website.