Battelle Memorial Institute

Seyed A Mansouri

Eric L Rehberg

James E Dvorsky

Jason Wayne Black

Jason J McCullough

Eric Rehbert

An aggregator is in operative communication with an aggregation of electric water heaters to receive thermostat readings and power consumption readings from the electric water heaters and to communicate demand response dispatch signals to the electric water heaters. The aggregator performs operations including: responding to instructions for a desired demand response by generating the demand response dispatch signals for the electric water heaters so as to cause the aggregation to draw electrical power providing the desired demand response; and determining whether an electric water heater of the aggregation has a failure and generating a notification of the failure. The determining including at least one of: determining whether the electric water heater has a failed heating element based on the thermostat readings received from the electric water heater; and determining whether the electric water heater has a water leak based on the power consumption readings received from the electric water heater.

Remote leak and failure detection of electrical water heaters through temperature and power monitoring

In a direct load control system supporting frequency control of an electrical grid, at each electrical load of an aggregation of loads, a load status report is generated comprising an urgency value and a power level. At an aggregation dispatch controller, a dispatch signal is generated based on the generated load status reports and information indicative of electrical frequency. At each electrical load of the aggregation, the load is operated at the reported power level if the reported urgency value satisfies the dispatch signal and is not operated at the reported power level if the reported urgency value does not satisfy the dispatch signal.

Method and system for using demand side resources to provide frequency regulation using a dynamic allocation of energy resources

In a direct load control system supporting frequency control of an electrical grid, loads are grouped into a plurality of load aggregations based on electrical power draw characteristics of the loads, e.g. power draw magnitude characteristic and transient slew rate. A best-fit dispatch signal is generated for each load aggregation to match a desired load response with a sum of predicted load responses of the aggregations each operating in accord with its best-fit dispatch signal. For each load aggregation, its best-fit dispatch signal is communicated to the loads of the load aggregation, and the loads of the load aggregation are operated in accord with the best-fit dispatch signal communicated to the loads. The desired load response may be generated based on historical Automatic Generation Control (AGC) signal data and at least one of (1) a weather forecast and (2) daily, weekly, and seasonal cycles.

A plurality of interactive electrical loads defines an aggregation connected with an electrical power grid. A scheduler generates a baseline power consumption schedule for the aggregation, determines frequency regulation capacity of the aggregation, and controls actual power consumption of the aggregation based on the baseline power consumption and an Automated Generation Control (AGC) signal of the electrical power grid to operate the aggregation as an ancillary frequency control device of the electrical power grid with the determined frequency regulation capacity. The controlling may comprise generating baseline dispatch signals for implementing the baseline consumption schedule, adjusting the baseline dispatch signals based on the AGC signal to generate adjusted dispatch signals, transmitting the adjusted dispatch signals to the plurality of interactive electrical loads defining the aggregation, and generating an AGC response log based on differences between the adjusted dispatch signals and the baseline dispatch signals.

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Columbus, OH, United States of America

Seyed A Mansouri