Patent ID: 11868191
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 11:
12. A system, comprising:
a power supply unit configured to generate a utility power based direct current (DC) electrical power from an alternating current (AC) electrical power produced from a utility AC power provided by an electric utility source and supply a first portion of the utility power based DC electrical power to low-priority electronic components of a datacenter and supply a second portion of the utility power based DC electrical power to high-priority electronic components of the datacenter;
one or more first backup battery units configured for supplying a first backup DC electrical power to the low-priority electronic components;
one or more second backup battery units configured for supplying a second backup DC electrical power to the high-priority electronic components; and
a controller comprising at least one processor and at least one memory device containing executable instructions that, when executed by the at least one processor, cause the controller to:
receive a first indication that a demand for an aggregate electrical power provided by the electric utility source has exceeded a first threshold, wherein the aggregate electrical power includes electrical power provided by the electric utility source to external users other than the datacenter; and
in response to receiving the first indication, cause the one or more first backup battery units to discharge to supply an amount of supplemental DC electrical power to the low-priority electronic components while preventing discharging of the one or more second backup battery units to prevent supplying supplemental DC electrical power to the high-priority electronic components.