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Long-term seasonal forwards in electricity generation markets: an application to Colombia
Author(s) -
Jesus Lopez Lezama,
David Tobón Orozco,
Esteban Velilla,
Jorge Barrientos Marín,
Fernando Villada
Publication year - 2018
Publication title -
cuadernos de economía
Language(s) - Spanish
Resource type - Journals
SCImago Journal Rank - 0.175
H-Index - 7
eISSN - 2248-4337
pISSN - 0121-4772
DOI - 10.15446/cuad.econ.v37n74.54299
Subject(s) - economics , cournot competition , portfolio , forward contract , electricity market , electricity , econometrics , futures contract , financial economics , microeconomics , electrical engineering , engineering
Seasonal components have been found in the price of most commodities, where prices are largely determined by the anticipation of seasonal demand and/or supply. This paper presents a methodology to determine seasonal forward prices in the electricity generation markets. A Cournot competition to characterize this market is assumed. Forward prices are calculated in accordance with the demand elasticity of the forwards and spot price through a differential or “gap” that represents the risk premium for the current forwards, plus some non-observable heterogeneities. The distribution of the given quantities in seasonal contracts is carried out through the classic portfolio theory. This methodology is applied to the Colombian case, and shows that it will be more profitable for generators to sell the proposed seasonal hydric forwards. Los componentes estacionales se encuentran en los precios de la mayoria de los commodities, en los cuales los precios se determinan, en gran medida, por la anticipacion de la estacionalidad en la oferta y la demanda. Este articulo presenta una metodologia para determinar precios estacionales en forwards en mercados de generacion de electricidad. Un juego de Cournot se considera para caracterizar este mercado. Los precios forward se construyen de acuerdo con la elasticidad de la demanda a los forward y el precio spot por medio de un diferencial que representa el premio por riesgo en los forward actuales mas una heterogeneidad no observable. La distribucion de estas cantidades en contratos estacionales se realiza mediante la teoria clasica de portafolio. Esta metodologia se aplica al caso colombiano, mostrando que es mas rentable para los generadores vender los forward hidricos estacionales propuestos

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