Amazon.com, Inc.
Power supply shedding for power efficiency optimization

Abstract:

Systems and methods for managing a collection of power supply units (PSUs), such as those used in a datacenter environment, can include detecting changes in an output load on the PSUs to less than a target output load that is based on a target efficiency of the PSUs. In response to the indication that the output load is decreasing, PSUs can be selectively deactivated so that that an average output load of remaining, active PSUs of the collection of PSUs remains above the target output load corresponding to the target efficiency of the PSUs.