Computer program and method for reducing HVAC demand for energy

• US 7,249,043 B1
• Filed: 03/10/2000
• Issued: 07/24/2007
• Est. Priority Date: 03/10/2000
• Status: Expired due to Term

• Current Assignee: EPM Incorporated
• Original Assignee: EPM Incorporated
• Inventors: Adam, Christopher C., Johnson, James O., Trout, Benjamin H. II
• Primary Examiner(s): Robinson-Boyce; Akiba K.
• Application Number:
  US09/522,751
• Time in Patent Office: 2,692 Days
• Field of Search: 705/8, 705/7, 705/26, 705/27, 705/1, 705/18
• US Class Current: 705/7.25
• CPC Class Codes: F24F 11/46 Improving electric energy efficiency or saving
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
• CPC Class Codes: G06Q 10/06315 Needs-based resource requirements planning or analysis
• CPC Class Codes: G06Q 10/06375 Prediction of business process outcome or impact based on a proposed change
• CPC Class Codes: G06Q 30/0205 Location or geographical consideration
• CPC Class Codes: H02J 3/008 involving trading of energy or energy transmission rights
• CPC Class Codes: Y04S 50/10 Energy trading, including energy flowing from end-user application to grid
• CPC Class Codes: Y04S 50/14 Marketing, i.e. market research and analysis, surveying, promotions, advertising, buyer profiling, customer management or rewards

Abstract

A method of providing a limited resource to a plurality of users that aggregates the plurality of users into a purchasing block, arranges for the availability of the resource and regulates the use of the resource by each of the users based on each of the user'"'"'s need for the resource so that a particular user having a greater need for the resource receives a greater provision of the resource while controlling usage of the resource to maintain aggregated usage below a predetermined level. The method is implemented through the use of an aggregation controller and a plurality of consumer resource controllers located at consumers'"'"' facilities. Communication between the aggregation controller and the consumer resource controllers is achieved through the use of a communication network, such as the Internet.

Claims

1. A computer-implemented method of providing a limited consumable energy resource to a plurality of individual users located at geographically discrete user locations, the method comprising the steps of:

aggregating the plurality of individual users at said geographically discrete locations into an energy resource-consuming block;

arranging for the availability of the resource from at least one supplier of the resource, said resource being a consumable energy resource; and

using a computer system to regulate real-time use of an amount of the resource by each of the individual users based on each of the user'"'"'s need for the resource at the user'"'"'s discrete location so that a particular user having a greater need for the resource receives a greater provision of the resource while controlling usage of the resource by said block to maintain aggregated usage of the resource below a predetermined level,

said regulating step comprising the steps of obtaining energy demand and need information from at least some of said users, and using said demand and need information in said system in order to;

(a) allocate respective amounts of the resource to the individual users;

(b) vary over time the allocated amounts of the resource to the individual users; and

(c) control the usage of the resource by the individual users as necessary to maintain the aggregate usage of the resource by all of the users below said predetermined level.

2. The method as set forth in claim 1, wherein the plurality of users are attached to a plurality of distribution systems owned by a plurality of distributors of the resource.

3. The method as set forth in claim 1, wherein the plurality of users are served by a plurality of separately owned resource generators.

4. The method as set forth in claim 1, wherein the plurality of users are attached to a distribution system owned by one supplier of the resource.

5. The method as set forth in claim 1, wherein the plurality of users combine their resource requirements and purchase the resource as an aggregation of consumers.

6. The method as set forth in claim 5, wherein the plurality of users are located over a geographical area of a plurality of sizes.

7. The method as set forth in claim 1, wherein the resource is a resource selected from the group consisting of electricity, natural gas, propane, chilled water, steam, oil, coal, hot water, and other products delivered by a defined distribution system.

12. The method of claim 1, said regulating step comprising the steps of:

aggregating the total use of the resource from all of said individual users; and

comparing said aggregated total use of the resource with said predetermined level, and, in response to such comparison, regulating the permitted usage of the resource from said at least one supplier by at least certain of said individual users, in order to ensure that said aggregated total use does not exceed said level.

13. The method of claim 1, said block being a purchasing block.

14. The method of claim 1, each of said user locations having a plurality of energy-consuming locations, said regulating step further comprising monitoring the energy-consuming locations of each user to determine each energy-consuming location'"'"'s need for the resource, and controlling the permitted use of the resource for each user by allocating the resource to the plural energy-consuming locations so that an energy-consuming location with a greater need for the resource as compared with another of the user'"'"'s energy-consuming locations receives greater provision of the resource than said other energy-consuming locations.

8. A computer-implemented method of providing a limited consumable energy resource to a plurality of individual users located at geographically discrete user locations, the method comprising the steps of:

aggregating the plurality of individual users at said geographically discrete locations into an energy resource-consuming block;

arranging for the availability of the resource from at least one supplier of the resource, said resource being a consumable energy resource; and

using a computer system to regulate real-time use of an amount of the resource by each of the individual users based on each of the user'"'"'s need for the resource at the user'"'"'s discrete location so that a particular user having a greater need for the resource receives a greater provision of the resource while controlling usage of the resource by said block to maintain aggregated usage of the resource below a predetermined level wherein regulating the real time use of the amount of the resource by each of the users includes the steps of;

monitoring all of the users'"'"' demand for the resource;

aggregating the users'"'"' demand for the resource;

comparing the aggregated demand for the resource to a demand limit;

if the aggregated demand for the resource is rising to the demand limit, increasing a first variable representing an allowed maximum difference in a measurement of need for the resource between a setpoint and the current condition; and

if the aggregated demand for the resource is lowering from the demand limit, decreasing the first variable.

9. The method as in claim 8, wherein regulating the real time use of the amount of the resource by each of the users further includes the steps of:

maintaining a second variable representing an allowed maximum difference in a measurement between the setpoint and current condition per a user'"'"'s zone or associated equipment;

comparing the second variable to a third variable representing a difference between the setpoint and current condition of the zone or associated equipment, if the third variable is greater than the second variable, then associated equipment is allowed to operate; and

comparing the first variable to the third variable, if the third variable is greater than the first variable, then the associated equipment is allowed to operate.

10. The method as in claim 9, wherein the measurement of the need for the resource is a measurement of temperature.

11. The method as in claim 10, wherein regulating the real time use of the amount of the resource by each of the users further includes the step of:

if a user has a weighted average of the second variable that is higher than the weighted average of the second variable of the other users when the aggregated demand exceeds the demand limit, charging the user a penalty proportional to the amount the weighted average of the second variable of the user is higher than the weighted average of the second variable for the other users.

15. A computer-implemented method of limiting aggregate use of a consumable energy resource by a plurality of energy-consuming locations, said method comprising the steps of:

aggregating the locations into an energy resource-consuming block, each of said locations having an initial setpoint related to energy need at the location and a maximum allowable variance from the initial setpoint;

arranging for the availability of said consumable energy resource; and

using a computer system to regulate real-time use of the resource at said locations based upon the need at each location for the resource in order to affect the energy consumption as desired at the locations, so that a particular location having a greater need for the resource receives a greater provision of the resource while controlling usage of the resource by said block to maintain aggregated usage of the resource below a predetermined limit, said regulating step comprising the steps of;

monitoring the aggregated level of use of the resource from all of the locations; and

comparing the aggregated level of use of the resource with said predetermined limit, and, in response to such comparison, controlling the permitted use of the resource by at least certain of said locations, in order to insure that the aggregated level of use of the resource does not exceed said predetermined limit, said controlling step comprising the steps of increasing or decreasing the maximum allowable variances of the locations as necessary.

16. The method of claim 15, said location condition being location temperature and said initial setpoint for each location being a setpoint temperature for the location.

17. The method of claim 16, said setpoint temperature being different in at least certain of said locations.

18. The method of claim 16, said initial maximum allowable variance being a temperature variance.

19. The method of claim 16, said initial maximum allowable variance being the same for all of said locations.

20. The method of claim 15, including the step of also monitoring the actual variance in each location from the setpoint for that location.

21. The method of claim 15, including the step of repeating said regulating step at intervals over time to generate respective control cycle loops.

22. The method of claim 21, including the step of using the increased or decreased maximum allowable variances obtained during a control cycle loop as the assigned initial maximum allowable variances for the next succeeding control cycle loop.

23. The method of claim 15, said energy resource being a resource selected from the group consisting of electricity, natural gas, propane, chilled water, steam, oil, coal, hot water, and other products delivered by a defined distribution system.

24. The method of claim 15, wherein said block is a purchasing block for the resource.

25. The method of claim 15, said locations being temperature control zones.

26. The method of claim 25, said zones being located in a single facility.

27. The method of claim 26, said temperature control zones being separate rooms in said facility.

28. The method of claim 15, said zones each associated with a computerized temperature controller.

29. The method of claim 15, said locations each having an individual location maximum allowable variance setpoint, wherein each respective location ceases being regulated by the maximum allowable variance of the respective location if the variance of the respective location is greater than the location maximum allowable variance setpoint.

30. The method of claim 29, said location maximum allowable variance setpoint being a temperature variance setpoint.

31. The method of claim 30, including the step of calculating an average of such actual variances.