A data center includes an electrical load, a connection to a utility power source, a uninterruptible power supply (UPS), a switching device and a control system. The control system is configured to cause the switching device to discontinue routing electrical power to the electrical loads via the UPS for a given period of time while electrical power is still available to be fed to the electrical loads from the utility power source. Subsequent to the given period of time, the control system cause the switching device to resume routing electrical power to the electrical loads via the UPS.