Application US20180357577 Energy Financial Settlements

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Application US20180357577

Published 2018-12-13

Building Energy Optimization System With Economic Load Demand Response (eldr) Optimization

An energy cost optimization system for a building includes HVAC equipment configured to operate in the building and a controller. The controller is configure to generate a cost function defining a cost of operating the HVAC equipment over an optimization period as a function of one or more electric loads for the HVAC equipment. The controller is further configured to generate participation hours. The participation hours indicate one or more hours that the HVAC equipment will participate in an economic load demand response (ELDR) program. The controller is further configured to generate an ELDR term based on the participation hours, the ELDR term indicating revenue generated by participating in the ELDR program. The controller is further configured to modify the cost function to include the ELDR term and perform an optimization using the modified cost function to determine an optimal electric load for each hour of the participation hours.

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3 Independent Claims

1. An energy cost optimization system for a building, the system comprising: HVAC equipment configured to operate in the building; and a controller configured to: generate a cost function defining a cost of operating the HVAC equipment over an optimization period as a function of one or more electric loads for the HVAC equipment, wherein the electric loads are decision variables of the cost function and comprise an electric load for each hour of the optimization period; generate participation hours, wherein the participation hours indicate one or more hours that the HVAC equipment will participate in an economic load demand response (ELDR) program; generate an ELDR term based on the participation hours, wherein the ELDR term indicates revenue generated by participating in the ELDR program; modify the cost function to include the ELDR term; and perform an optimization using the modified cost function to determine an optimal electric load for each hour of the participation hours.
10. A method for optimizing energy costs for a building, the method comprising: generating a cost function defining a cost of operating HVAC equipment over an optimization period as a function of one or more electric loads for the HVAC equipment, wherein the electric loads are decision variables of the cost function and comprise an electric load for each hour of the optimization period; generating participation hours, wherein the participation hours indicate one or more hours that the HVAC equipment will participate in an economic load demand response (ELDR) program; generating an ELDR term based on the participation hours, wherein the ELDR term indicates revenue generated by participating in the ELDR program; modifying the cost function to include the ELDR term; and performing an optimization using the modified cost function to determine an optimal electric load for each hour of the participation hours.
17. An energy cost optimization system for a building, the system comprising: HVAC equipment configured to satisfy a building energy load of the building; and a controller configured to: generate a cost function defining a cost of operating the HVAC equipment over an optimization period as a function of one or more electric loads for the HVAC equipment, wherein the electric loads are decision variables of the cost function and comprise an electric load for each hour of the optimization period; receive a net benefit test (NBT), a day-ahead locational marginal price (LMP), and a real-time LMP from an incentive program; generate participation hours, wherein the participation hours indicate one or more hours that the HVAC equipment will participate in an economic load demand response (ELDR) program, by comparing the NBT to: a predicted day-ahead LMP that is based on one or more received day-ahead LMP's; and a predicted real-time LMP that is based on one or more received real-time LMP; generate an ELDR term based on the participation hours, wherein the ELDR term indicates revenue generated by participating in the ELDR program; modify the cost function to include the ELDR term; and perform an optimization using the modified cost function to determine an optimal electric load for each hour of the participation hours.