futures contracts

Efficient Solution of Optimal Multimarket Electricity Bid Models

Publication TypeProceedings Article
Year of Publication2011
AuthorsCristina Corchero; F.-Javier Heredia; Eugenio Mijangos
Conference Name8th International Conference on the European Energy Market (EEM11)
Series TitleTo be published in the IEEEXplore
Pagination244-249
Conference Start Date25/05/2011
PublisherInstitute of Electrical and Electronics Engineers, Inc.
Conference LocationZagreb, Croatia
EditorMarko Delimar
ISBN Number978-1-61284-286-8/11
Key Wordsspot electricity markets; financial electricity markets; Iberian Electricity Market; stochastic programming; perspective cuts; research; DPI2008-02153; paper
AbstractShort-term electricity market is made up of a sequence of markets, that is, it is a multimarket enviroment. In the case of the Iberian Energy Market the sequence of major short-term electricity markets are the day-ahead market, the ancillary service market or secondary reserve market (henceforth reserve market), and a set of six intraday markets. Generation Companies (GenCos) that participate in the electricity market could increase their benefits by jointly optimizing their participation in this sequence of electricity markets. This work proposes a stochastic programming model that gives the GenCo the optimal bidding strategy for the day-ahead market (DAM), which considers the benefits and costs of participating in the subsequent markets and which includes both physical futures contracts and bilateral contracts.
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DOI10.1109/EEM.2011.5953017
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Efficient Solution of Optimal Multimarket Electricity Bid Models

Publication TypeConference Paper
Year of Publication2011
AuthorsCristina Corchero; F.-Javier Heredia; Eugenio Mijangos
Conference Name8th International Conference on the European Energy Market (EEM11)
Series TitleInternational Conference on the European Energy Market
Conference Date25-27/05/2011
PublisherInstitute of Electrical and Electronics Engineers, Inc.
Conference LocationZagreb, Croatia
EditorMarko Delimar
Type of WorkContributed presentacion
ISBN Number978-1-61284-284-4
Key Wordsspot electricity markets; financial electricity markets; Iberian Electricity Market; stochastic programming; perspective cuts; research; DPI2008-02153
AbstractShort-term electricity market is made up of a sequence of markets, that is, it is a multimarket enviroment. In the case of the Iberian Energy Market the sequence of major short-term electricity markets are the day-ahead market, the ancillary service market or secondary reserve market (henceforth reserve market), and a set of six intraday markets. Generation Companies (GenCos) that participate in the electricity market could increase their benefits by jointly optimizing their participation in this sequence of electricity markets. This work proposes a stochastic programming model that gives the GenCo the optimal bidding strategy for the day-ahead market (DAM), which considers the benefits and costs of participating in the subsequent markets and which includes both physical futures contracts and bilateral contracts.
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Optimización de modelos estocásticos de mercado eléctrico múltiple mediante métodos duales

Publication TypeTesis de Grau i Màster // BSc and MSc Thesis
Year of Publication2011
AuthorsUnai Aldasoro Marcellan
DirectorF. Javier Heredia
Tipus de tesiMSc Thesis
TitulacióMàster in Statistics and Operations Research
CentreFacultat de Matemàtiques i Estadística, departament d'Estadística i Investigació Operativa, UPC
Data defensa16/03/2011
Nota // markMatrícula d'Honor (10/10)
Key Wordsteaching; research; dual methods; electricity markets; DPI2008-02153; mixed integer nonlinear programming; proximal bundle method; optimal day-ahead bid; electricity multimarket; MSc Thesis
AbstractEl presente trabajo plantea la resolución computacional de un modelo de optimización de la oferta de generación eléctrica para compañías eléctricas que participan en el mercado eléctrico liberalizado MIBEL. Dicho mercado se circunscribe a España y Portugal y se compone de una serie de subastas energéticas consecutivas donde el operador de mercado realiza para cada una de ellas la casación entre la oferta y demanda. Así, el objetivo de la compañía generadora será maximizar los beneficios obtenidos en la participación del conjunto de mercados teniendo en cuenta el cumplimiento de las obligaciones contractuales ya establecidas. El modelo matemático propuesto para su caracterización corresponde a un modelo de programación estocástica multietapa cuyo equivalente determinista es un problema de optimización cuadrática con variable binaria. Con el objetivo de aprovechar la estructura del problema se procede a plantear la dualización de un grupo de restricciones que producen que el problema original pueda ser dividido en subproblemas. Para su resolución se deberá estudiar la idoneidad de diversos métodos duales (subgradiente, Bundle Methods, ACCPM) y seleccionar el más conveniente para el caso abordado. La decisión finalmente adoptada ha consistido en elegir como método de resolución el algoritmo Proximal Bundle Method descrito en [18] y adaptado satisfactoriamente a problemas de coordinación de la generación hidro-térmica [17]. El análisis de método Proximal Bundle Method corresponderá a su compresión e interpretación gráfica, a la resolución de un ejemplo de pequeña escala de manera analítica y a su resolución computacional. El objetivo de la fase de resolución será valorar el proceso iterativo y la convergencia del Proximal Bundle Method aplicado al problema multimercado de oferta óptima y la comparación de resultados respecto a otro método dual como el método del subgradiente. La implementación computacional se realizará mediante el lenguaje C++, específicamente se utilizará el metalenguaje Concert Techonolgy creado por IBM para el enlace entre el código C++ y el solver CPLEX. Se comprueba que dicho lenguaje tiene como ventajas principales su simplicidad estructural y el compacto código que produce. No obstante la implementación del Proximal Bundle Method manifiesta una serie de limitaciones prácticas de Concert Technology en cuanto al almacenado y actualización de problemas de optimización. Se propone como línea de futuro el análisis de lenguajes alternativos. En todo caso, los resultados obtenidos desprenden que el Proximal Bundle Method se adapta satisfactoriamente al problema multimercado de oferta óptima, además se concluye que en la aplicación numérica considerada un tamaño de Bundle ilimitado produce los mejores resultados. Además en trabajo propone una serie de líneas de investigación futuras en las que destacan la paralelización de la resolución de los subproblemas, y la definición del subproblema asociado a cada térmica como un problema de caminos mínimos
DOI / handlehttp://hdl.handle.net/2099.1/13917
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A Stochastic Programming Model for the Thermal Optimal Day-Ahead Bid Problem with Physical Futures Contracts

Publication TypeJournal Article
Year of Publication2011
AuthorsCristina Corchero; F.-Javier Heredia
Journal TitleComputers & Operations Research
Volume38
Issue11
Pages1501-1512
Start Page1501
Journal Date2011
PublisherElsevier
ISSN Number0305-0548
Key Wordsresearch; paper; stochastic programming; optimal bod; day-ahead market; MIBEL; DPI2008-02154; modeling
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DOI10.1016/j.cor.2011.01.008
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New paper accepted for publication in Computers & Operations Research

 The work A Stochastic Programming Model for the Thermal Optimal Day-Ahead Bid Problem with Physical Futures Contracts of C. Corchero and F.-Javier Heredia, has been accepted for publication in the journal Computers & Operations Research (DOI:10.1016/j.cor.2011.01.008). A preprint version of the manuscript is available at http://hdl.handle.net/2117/2795. The goal of this work, which was developed as a part of the research project DPI2008-02153,  is to optimize coordination between physical futures contracts and the day-ahead bidding which follow the MIBEL's regulation. The authors propose a stochastic quadratic mixed-integer programming model which maximizes the expected profits, taking into account futures contracts settlement.

Optimal Day-Ahead Bidding in the MIBEL's Multimarket Energy Production System

Publication TypeProceedings Article
Year of Publication2010
AuthorsCristina Corchero; F.-Javier Heredia
Conference Name7th Conference on European Energy Market EEM10
Series TitleProceedings of the 7th Conference on European Energy Market EEM10
Volume1
Pagination1 - 6
Conference Start Date23/06/2010
PublisherIEEE
Conference LocationMadrid
EditorIEEE
ISBN Number978-1-4244-6838-6
Key Wordsresearch; DPI2008-02153; multimarket; MIBEL; stochastic programming; futures contracts; bilateral contracts; optimal bid; paper
AbstractA Generation Company (GenCo) can participate in the Iberian Electricity Market (MIBEL) through different mechanisms and pools: the bilateral contracts, the physical derivatives products at the Derivatives Market, the bids to the Day-Ahead Market, the Intraday Markets or the Ancillary Services Markets. From the short-term generation planning point of view, the most important problem to solve is the bidding strategy for the Day-Ahead Market (DAM) given that the 85% of the physical energy traded in Spain is negotiated in it, but this participation cannot be tackled independently of other subsequent markets.
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DOI10.1109/EEM.2010.5558714
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A decision support procedure for the short-term scheduling problem of a generation company operating on day-ahead and physical derivatives electricity markets

Publication TypeConference Paper
Year of Publication2009
AuthorsM.-Teresa Vespucci; Cristina Corchero; Mario Innorta; F.-Javier Heredia
Conference Name11th International Conference on the Modern Information Technology in the Innovation Processes of the Industrial Enterprises (MITIP 2009)
Series TitleProceedings of the 11th International Conference on the Modern Information Technology in the Innovation Processes of the Industrial Enterprises (MITIP 2009)
Conference Date15-16/10/2009
Conference LocationBergamo, Italy
Type of Workinvited presentation
ISBN Number978-88-89555-09-05
Key Wordsresearch; hydro-thermal; futures; day-ahead; GAMS, CPLEX
AbstractWe consider a generation company operating in the liberalized electricity market, whose production system consists of hydro and thermal plants. Production is sold either directly to customers, by means of bilateral contracts, or on the spot market, where the electricity price is unknow until the market clearing process has taken place. Price risk may be hedged by financial tools provided by the Derivative Electricity Market. In this work futures contracts are considered, i.e. agreements to sell electricity in the future for a specified price. A Mixed Integer Linear Programming model is introduced for determining the unit commitment of thermal units and the dispatchment of available thermal units and hydro plants, aiming at maximizing profits. Numerical results on a case study are reported
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Optimal day-ahead bidding strategy in the MIBEL's multimarket energy production system

Publication TypeReport
Year of Publication2010
AuthorsCristina Corchero; F.-Javier Heredia
Pages6
Date07/2010
ReferenceResearch report DR 2010/**, Dept. of Statistics and Operations Research. E-Prints UPC, http://hdl.handle.net/2117/8390. Universitat Politècnica de Catalunya
Prepared forPublished by the IEEE at the proceedings of the 7th Conference on European Energy Market EEM10, Madrid, Spain
Key Wordsresearch; electricity markets; multimarkets; day-ahead market; intraday market; AGC market; stochastic programming
AbstractA Generation Company (GenCo) can participate in the Iberian Electricity Market (MIBEL) through different mechanisms and pools: the bilateral contracts, the physical derivatives products at the Derivatives Market, the bids to the Day-Ahead Market, the Intraday Markets or the Ancillary Services Markets. From the short-term generation planning point of view, the most important problem to solve is the bidding strategy for the Day-Ahead Market (DAM) given that the 85% of the physical energy traded in Spain is negotiated in it, but this participation cannot be tackled independently of other subsequent markets.
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Optimal day-ahead bidding strategy with futures and bilateral contracts. Scenario generation through factor models

Publication TypeConference Paper
Year of Publication2010
AuthorsCristina Corchero; F.-Javier Heredia; M.-Pilar Muñoz
Conference Name24th European Conference on Operational Research
Conference Date11-14/07/2010
Conference LocationLisboa
Type of WorkInvited Presentation
Key Wordsresearch; electrical markets; stochastic programming; forecasting
AbstractWe propose a stochastic programming model that gives the optimal bidding, bilateral (BC) and futures contracts (FC) nomination strategy for a price-taker generation company in the MIBEL. The objective of the study is to decide the optimal economic dispatch of the physical FC and BC among the thermal units, the optimal bidding at day-ahead market (DAM) abiding by the MIBEL rules and the optimal unit commitment that maximizes the expected profits from the DAM. For the uncertainty characterization, we apply the methodology of factors models to forecast market prices in a short-term horizon.
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Optimal Day-Ahead Bidding in the MIBEL's Multimarket Energy Production System

Publication TypeConference Paper
Year of Publication2010
AuthorsCristina Corchero; F.-Javier Heredia
Conference Name7th Conference on European Energy Market EEM10
Conference Date23-25/06/2010
Conference LocationMadrid, Spain
Type of WorkContributed Presentation
Key Wordsresearch; multimarket; bilateral contracts; futures contracts; optimal bid; stochastic programming; MIBEL
AbstractAbstract—A Generation Company (GenCo) can participate in the Iberian Electricity Market (MIBEL) through different mechanisms and pools: the bilateral contracts, the physical derivatives products at the Derivatives Market, the bids to the Day-Ahead Market, the Intraday Markets or the Ancillary Services Markets. From the short-term generation planning point of view, the most important problem to solve is the bidding strategy for the Day-Ahead Market (DAM) given that the 85% of the physical energy traded in Spain is negotiated in it, but this participation cannot be tackled independently of other subsequent markets.
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