Preprint Article Version 1 This version is not peer-reviewed

Bidding of Energy Sources and Energy Storage System in Day-ahead Markets

Version 1 : Received: 5 July 2017 / Approved: 6 July 2017 / Online: 6 July 2017 (07:46:31 CEST)

How to cite: Alswaiti, M.; Alawami, A. Bidding of Energy Sources and Energy Storage System in Day-ahead Markets. Preprints 2017, 2017070009 (doi: 10.20944/preprints201707.0009.v1). Alswaiti, M.; Alawami, A. Bidding of Energy Sources and Energy Storage System in Day-ahead Markets. Preprints 2017, 2017070009 (doi: 10.20944/preprints201707.0009.v1).

Abstract

In this work, the Pumped Storage Unit (PSU) is proposed to be integrated with wind-thermal generation system owned by a company whose aim is to maximize its profit through optimal self-scheduling of its units by finding the best bidding strategy in day-ahead energy market. The mathematical formulation of the scenario based unit-commitment and coordinated trading problem is formulated as a stochastic mixed integer linear program. The formulation takes into account several uncertain parameters; such as the wind power generation, energy market prices, and imbalances up/down prices. The expected total profit obtained from energy trading with and without coordinating pumped storage system (PSS) with thermal-wind generation system were compared, and a significant improvement in profit resulted from coordination was observed. Furthermore, coordination between PSS and wind-thermal generation improve the conditional value at risk (CVaR) which monitors the biding risk level.

Subject Areas

pumped storage system; coordinated PSS with wind-thermal generation; uncoordinated PSS; risk; mixed integer programming; thermal unit commitment schedule; PSS modes schedule

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