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Transaction Mechanism Based on Two-Dimensional Energy and Reliability Pricing for Energy Prosumers

Department of Electrical and Electronic Engineering, Hanseo University, Chungcheongnam-do 31962, Korea
Department of Electrical Engineering, Gachon University, Gyeonggi-do 13120, Korea
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(7), 1343;
Received: 15 February 2019 / Revised: 26 March 2019 / Accepted: 26 March 2019 / Published: 30 March 2019
PDF [2293 KB, uploaded 30 March 2019]


Prosumers, users that consume and produce energy, increase the diversity of energy system operations as distributed sources. However, they can reduce energy system reliability by increasing uncertainty. This study presents a novel transaction mechanism based on dynamic pricing for enhancing energy system reliability. The proposed dynamic energy-reliability pricing-based transaction mechanism (ERT) increases the controllability of prosumer uncertainties by a two-dimensional pricing mechanism based on time and reliability status, as compared to conventional time-based one-dimensional energy prices. Under the proposed ERT, utilities and prosumers exchange information about the utility price and the prosumer’s intent in order to ensure that demand is met. A two-way information infrastructure built for prosumer energy trading is used for this task. The utility enhances system reliability using this information, and the prosumer increases revenue through pricing selection. The practical implementation of the proposed ERT is described for both utilities and prosumers. A case study using practical renewable generation data revealed that the proposed ERT improves not only the reliability factor of the utility but also prosumer revenue as compared to a conventional energy-based dynamic pricing case. It is also shown that an economical optimum point that maximizes prosumer net revenue exists when electrical energy storage (EES) is applied to enhance performance. Increasing to the EES capacity provided room for uncertainty management, net revenue is improved, but the economic burden by the EES cost is increased. Under the proposed ERT, the optimal point results in greater EES capacity and higher net revenue enhancement than the conventional case. View Full-Text
Keywords: dynamic pricing; electricity pricing; prosumer; reliability; renewable energy; uncertainty dynamic pricing; electricity pricing; prosumer; reliability; renewable energy; uncertainty

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Oh, E.; Son, S.-Y. Transaction Mechanism Based on Two-Dimensional Energy and Reliability Pricing for Energy Prosumers. Appl. Sci. 2019, 9, 1343.

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