Systems and methods for data center power supply control are provided that identify a parameter of at least one of a plurality of servers that form at least part of a data center that includes an uninterruptable power supply. An estimated parameter of a virtual server can be identified, and one of the plurality of servers can be selected based at least in part on the parameter and the estimated parameter. The virtual server can be provided to the selected server, and the power provided to at least one of the plurality of servers can be reduced, shut down, or otherwise adjusted.