Systems and methods for measuring and verifying energy usage in a building
First Claim
1. A system for measuring and verifying energy savings resulting from energy conservation measures in a building, the system comprising:
- one or more energy meters configured to measure an actual amount of energy usage for the building with the energy conservation measures during a measurement and verification period;
a controller comprising a processing circuit configured to determine an actual amount of energy savings resulting from the energy conservation measures during the measurement and verification period and an uncertainty associated with the actual amount of energy savings;
wherein the processing circuit is configured to calculate a least amount of energy savings resulting from the energy conservation measures, wherein the least amount of energy savings is a lower confidence bound on the actual amount of energy savings and is calculated using the uncertainty;
wherein the processing circuit is configured to cause a building management system for the building to stop performing a measurement and verification process before a normal end of the measurement and verification period in response to the least amount being greater than a target amount of energy savings to be achieved by the energy conservation measures.
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Accused Products
Abstract
A system for measuring and verifying energy savings resulting from energy conservation measures in a building includes one or more energy meters and a controller. The energy meters are configured to measure an actual amount of building energy usage The controller is configured to determine an actual amount of energy savings resulting from the energy conservation measures during the measurement and verification period and to calculate a least amount of energy savings resulting from the energy conservation measures. The least amount of energy savings is a lower confidence bound on the actual amount of energy savings. The controller is configured to cause a building management system for the building to stop performing a measurement and verification process before a normal end of the measurement and verification period in response to the least amount being greater than a target amount of energy savings to be achieved by the energy conservation measures.
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Citations
20 Claims
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1. A system for measuring and verifying energy savings resulting from energy conservation measures in a building, the system comprising:
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one or more energy meters configured to measure an actual amount of energy usage for the building with the energy conservation measures during a measurement and verification period; a controller comprising a processing circuit configured to determine an actual amount of energy savings resulting from the energy conservation measures during the measurement and verification period and an uncertainty associated with the actual amount of energy savings; wherein the processing circuit is configured to calculate a least amount of energy savings resulting from the energy conservation measures, wherein the least amount of energy savings is a lower confidence bound on the actual amount of energy savings and is calculated using the uncertainty; wherein the processing circuit is configured to cause a building management system for the building to stop performing a measurement and verification process before a normal end of the measurement and verification period in response to the least amount being greater than a target amount of energy savings to be achieved by the energy conservation measures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for measuring and verifying energy savings resulting from energy conservation measures in a building, the method comprising:
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identifying a target amount of energy savings to be achieved by the energy conservation measures; determining an actual amount of energy savings resulting from the energy conservation measures during a measurement and verification period and an uncertainty associated with the actual amount of energy savings; calculating a least amount of energy savings resulting from the energy conservation measures, wherein the least amount of energy savings is a lower confidence bound on the actual amount of energy savings and is calculated using the uncertainty; and causing a building management system for the building to stop performing a measurement and verification process before a normal end of the measurement and verification period in response to the least amount being greater than the target amount. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for measuring and verifying energy savings resulting from energy conservation measures in a building, the method comprising:
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identifying a target amount of energy savings to be achieved by the energy conservation measures; determining an actual amount of energy savings resulting from the energy conservation measures during a measurement and verification period and an uncertainty associated with the actual amount of energy savings; calculating a greatest amount of energy savings resulting from the energy conservation measures, wherein the greatest amount of energy savings is an upper confidence bound on the actual amount of energy savings and is calculated using the uncertainty; and causing a building management system for the building to stop performing a measurement and verification process before a normal end of the measurement and verification period in response to the greatest amount being less than the target amount.
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Specification