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

Claim 0:
1. A system for managing consumption by a datacenter of electrical power provided by an electric utility source, the system comprising:
a power supply unit for supplying a first portion of a utility power based direct current (DC) electrical power to low-priority electronic components and a second portion of the utility power based DC electrical power to high-priority electronic components in the datacenter, wherein the power supply unit receives an alternating current (AC) electrical power supplied by an electric utility source;
a battery charger;
one or more first backup battery units for supplying a first backup DC electrical power to the low-priority electronic components in the datacenter, wherein the one or more first battery backup units are chargeable by the battery charger;
one or more second backup battery units for supplying a second backup DC electrical power to the high-priority electronic components in the datacenter, wherein the one or more second battery backup units are chargeable by the battery charger; 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:
in response to receiving a first indication that a demand for an aggregate electrical power provided by the electric utility source has exceeded a first threshold, cause the one or more first backup battery units to supply a supplemental DC electrical power to the low-priority electronic components in the datacenter to supplement the first portion of the utility power based DC electrical power supplied to low-priority electronic component by the power supply unit and prevent the one or more second backup battery units from supplying DC electrical power to the high-priority electronic components while the high-priority electronic components are supplied the second portion of the utility power based DC electrical power by the power supply unit and the low-priority electronic components are supplied the supplemental DC electrical power by the one or more first battery backup units, 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 a second indication that the demand for the aggregate electrical power provided by the electric utility source has fallen below a second threshold that is less than the first threshold,
cause the one or more first backup battery units to be charged by the battery charger.