SYSTEMS AND METHODS FOR MEASURING AND VERIFYING ENERGY USAGE IN A BUILDING

• US 20130325377A1
• Filed: 05/31/2012
• Published: 12/05/2013
• Est. Priority Date: 05/31/2012
• Status: Active Grant

• Current Assignee: Tyco Fire & Security GmbH (Johnson Controls International plc)
• Original Assignee: Johnson Controls Technology Company (Johnson Controls International plc)
• Inventors: Drees, Kirk H., Kummer, James P., Wenzel, Michael J.
• Granted Patent: US 9,390,388 B2
• Time in Patent Office: Days
• US Class Current: 702/61
• CPC Class Codes: G01R 21/00 Arrangements for measuring electric power or power factor G01R7/12 takes precedence
• CPC Class Codes: G01R 21/1333 adapted for special tariff measuring
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
• CPC Class Codes: G06Q 50/06 Energy or water supply

Abstract

A computerized method of determining the end of a measurement and verification period of a building management system is provided. The method includes calculating, for a plurality of periods, a target amount of energy savings resulting from energy conservation measures in a building. The method further includes calculating, for a plurality of periods, a least amount of energy savings resulting from energy conservation measures in a building. The method further includes comparing the target amount to the least amount. The method further includes ending the measurement and verification period, before the end of a maximum measurement and verification period, when the least amount is greater than the target amount. The method further includes outputting an indication that the measurement and verification period has ended to at least one of a memory device, a user device, or another device on the building management system.

Claims

1. A computerized method of determining the end of a measurement and verification period of a building management system, the method comprising:

calculating, for a plurality of periods, a target amount of energy savings resulting from energy conservation measures in a building;

calculating, for a plurality of periods, a least amount of energy savings resulting from energy conservation measures in a building;

comparing the target amount to the least amount;

determining a recommendation to end the measurement and verification period, before the normal end of a maximum measurement and verification period, in response to the least amount being greater than the target amount; and

outputting an indication of the recommendation to at least one of;

a memory device, a user device, and another device of the building management system.

2. The method of claim 1, further compromising continuing the measurement and verification period for at least one full cycle, wherein a full cycle comprises a plurality of periods.

3. The method of claim 1, further comprising providing a user interface for allowing an operator of the building management system to set or adjust the target amount.

4. The method of claim 1, wherein ending the measurement and verification period does not require user input of the ending to be received from an operator of the building management system.

5. The method of claim 1, wherein calculating the least amount comprises:

calculating a mathematical uncertainty in an estimated amount energy usage for a building without energy conservation measures;

calculating an actual amount of energy savings resulting from energy conservation measures in a building; and

calculating a least amount by subtracting the uncertainty from the actual amount.

6. The method of claim 5, wherein calculating an actual amount of energy savings comprises:

calculating an estimated amount energy usage for a building without energy conservation measures;

measuring an actual amount of energy usage for the building with energy conservation measures; and

calculating an actual amount of energy savings by subtracting actual amount of energy usage from the estimated amount of energy usage.

7. The method of claim 5, further comprising outputting a graphical display of at least one of a mathematical uncertainty, an actual amount of energy savings, a least amount of energy savings, or a target amount of energy savings to at least one of a memory device, a user device, or another device on the building management system.

8. The method of claim 1, further comprising:

calculating, for a plurality of periods, a greatest amount of energy savings resulting from energy conservation measures in a building;

comparing the target amount to the greatest amount; and

determining a recommendation to end the measurement and verification period, before the normal end of a maximum measurement and verification period, in response to the greatest amount being less than the target amount;

outputting an indication of the recommendation to at least one of;

a memory device, a user device, and another device of the building management system.

9. A computerized method of determining the end of a measurement and verification period of a building management system, the method comprising:

calculating, for a plurality of periods, a target amount of energy savings resulting from energy conservation measures in a building;

calculating, for a plurality of periods, a greatest amount of energy savings resulting from energy conservation measures in a building;

comparing the target amount to the greatest amount;

determining a recommendation to end the measurement and verification period, before the normal end of a maximum measurement and verification period, in response to the greatest amount being less than the target amount; and

outputting an indication of the recommendation to at least one of;

a memory device, a user device, and another device of the building management system.

10. A controller for determining the end of a measurement and verification period of a building management system, the controller comprising:

a processing circuit configured to calculate, for a plurality of periods, a target amount of energy savings resulting from energy conservation measures in a building; and

wherein the processing circuit is further configured to calculate, for a plurality of periods, a least amount of energy savings resulting from energy conservation measures in a building;

wherein the processing circuit is further configured to compare the target amount to the least amount;

wherein the processing circuit is further configured to determine a recommendation to end the measurement and verification period, before the normal end of a maximum measurement and verification period, in response to the least amount is greater than the target amount; and

wherein the processing circuit is further configured to output the recommendation to at least one of;

a memory device, a user device, or another device on the building management system.

11. A controller of claim 10, wherein the processing circuit is further configured to continue the measurement and verification period for at least one full cycle, wherein a full cycle comprises a plurality of periods.

12. A controller of claim 10, wherein the processing circuit is further configured to provide a user interface for allowing an operator of the building management system to set or adjust the target amount.

13. A controller of claim 10, wherein ending the measurement and verification period does not require user input of the ending to be received from an operator of the building management system.

14. A controller of claim 10, wherein calculating the least amount comprises:

calculating a mathematical uncertainty in an estimated amount energy usage for a building without energy conservation measures;

calculating an actual amount of energy savings resulting from energy conservation measures in a building; and

calculating a least amount by subtracting the uncertainty from the actual amount.

15. A controller of claim 10, wherein calculating an actual amount of energy savings comprises:

calculating an estimated amount energy usage for a building without energy conservation measures;

measuring an actual amount of energy usage for the building with energy conservation measures; and

calculating an actual amount of energy savings by subtracting actual amount of energy usage from the estimated amount of energy usage.

16. A controller of claim 10, wherein the processing circuit is further configured to output a graphical display of at least one of a mathematical uncertainty, an actual amount of energy savings, a least amount of energy savings, or a target amount of energy savings to at least one of a memory device, a user device, or another device on the building management system.

17. Tangible computer-readable storage media with computer-executable instructions embodied thereon that when executed by a computer system perform a method for use with a building management system in a building, wherein the instructions comprise:

instructions for calculating, for a plurality of periods, a target amount of energy savings resulting from energy conservation measures in a building;

instructions for calculating, for a plurality of periods, a least amount of energy savings resulting from energy conservation measures in a building;

instructions for comparing the target amount to the least amount;

instructions for determining a recommendation to end the measurement and verification period, before the end of a maximum measurement and verification period, in response to the least amount being greater than the target amount; and

instructions for outputting the recommendation to at least one of;

a memory device, a user device, and another device on the building management system.

18. The tangible computer-readable storage media of claim 17, wherein the instructions further comprise:

instructions for continuing the measurement and verification period for at least one full cycle, wherein a full cycle comprises a plurality of periods.

19. The tangible computer-readable storage media of claim 17, wherein the instructions further comprise:

instructions for providing a user interface for allowing an operator of the building management system to set or adjust the target amount.

20. The tangible computer-readable storage media of claim 17, wherein the instructions for ending the measurement and verification period does not require user input of the ending to be received from an operator of the building management system.

21. The tangible computer-readable storage media of claim 17, wherein the instructions for calculating the least amount comprises:

instructions for calculating a mathematical uncertainty in an estimated amount energy usage for a building without energy conservation measures;

instructions for calculating an actual amount of energy savings resulting from energy conservation measures in a building; and

instructions for calculating a least amount by subtracting the uncertainty from the actual amount.

22. The tangible computer-readable storage media of claim 17, wherein the instructions for calculating an actual amount of energy savings comprises:

instructions for calculating an estimated amount energy usage for a building without energy conservation measures;

instructions for measuring an actual amount of energy usage for the building with energy conservation measures; and

instructions for calculating an actual amount of energy savings by subtracting actual amount of energy usage from the estimated amount of energy usage.

23. The tangible computer-readable storage media of claim 17, wherein the instructions further comprise:

instructions for outputting a graphical display of at least one of a mathematical uncertainty, an actual amount of energy savings, a least amount of energy savings, or a target amount of energy savings to at least one of a memory device, a user device, or another device on the building management system.