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Beyond the Net Benefits Test: Optimizing Economic Demand Response

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posted on 2023-08-29, 16:07 authored by Jessie Wing-See Ma

Presently, economic Demand Response (DR) is procured based solely on energy market characteristics. There is no recognition of DR’s full and unusual impacts on energy markets, and lack of recognition of DR suppliers’ surplus. This incomplete understanding results in inefficient market outcomes and waste. In 2011 through Order 745, the Federal Energy Regulatory Commission (FERC) in the United States partially addressed some of these issues by mandating the Net Benefits Test (NBT), wherein DR can be purchased only when the benefits exceed the costs for consumers. While this shields consumers from harm, this does not yield the most efficient economic results. The ideas in this thesis completes the picture for economic DR. First, a new metric, Actual Price, is defined and used for a system-wide scheduling implementation with DR. Second, a new method to integrate NBT into a real-time optimal power flow (OPF) formulation that accounts for locational pricing is presented. Third, a new zonal planning method for DR procurement is offered, including the introduction of the DR market, which operates alongside the energy market. Lastly, the energy and DR markets are co-optimized in a real-time OPF formulation. 

The most significant contribution is the creation of a new concept: the DR market. While the DR market has always existed, the lack of recognition of its existence and absence of its model alongside the traditional energy market leads to the optimization of the energy market’s social welfare while ignoring the DR market’s social welfare. The omission of the DR market until now meant that the full economic picture of DR was not seen. This led to sub-optimal outcomes and reduced total social welfare. These new methods were tested on modified IEEE test systems and on real-world systems, such as PJM and Ontario. Results were compared with existing methods in both literature and practice, demonstrating the superior performance of the methods introduced in this thesis. Through implementation of the DR market concept, the thesis reports maximization of total social welfare considering both energy and DR markets for the first time

History

Language

English

Degree

  • Doctor of Philosophy

Program

  • Electrical and Computer Engineering

Granting Institution

Ryerson University

LAC Thesis Type

  • Dissertation

Thesis Advisor

Dr. Bala Venkatesh

Year

2021

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