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Energies 2016, 9(9), 721; doi:10.3390/en9090721

Short-Term Price Forecasting Models Based on Artificial Neural Networks for Intraday Sessions in the Iberian Electricity Market

1
Department of Electrical and Computer Engineering, Faculty of Engineering of the University of Porto (FEUP), Porto 4200-465, Portugal
2
Electrical Engineering Department, University of Zaragoza, Zaragoza 50018, Spain
3
Electrical Engineering Department, University of La Rioja, Logroño 26004, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Javier Contreras
Received: 7 June 2016 / Revised: 8 August 2016 / Accepted: 26 August 2016 / Published: 7 September 2016
(This article belongs to the Special Issue Forecasting Models of Electricity Prices)
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Abstract

This paper presents novel intraday session models for price forecasts (ISMPF models) for hourly price forecasting in the six intraday sessions of the Iberian electricity market (MIBEL) and the analysis of mean absolute percentage errors (MAPEs) obtained with suitable combinations of their input variables in order to find the best ISMPF models. Comparisons of errors from different ISMPF models identified the most important variables for forecasting purposes. Similar analyses were applied to determine the best daily session models for price forecasts (DSMPF models) for the day-ahead price forecasting in the daily session of the MIBEL, considering as input variables extensive hourly time series records of recent prices, power demands and power generations in the previous day, forecasts of demand, wind power generation and weather for the day-ahead, and chronological variables. ISMPF models include the input variables of DSMPF models as well as the daily session prices and prices of preceding intraday sessions. The best ISMPF models achieved lower MAPEs for most of the intraday sessions compared to the error of the best DSMPF model; furthermore, such DSMPF error was very close to the lowest limit error for the daily session. The best ISMPF models can be useful for MIBEL agents of the electricity intraday market and the electric energy industry. View Full-Text
Keywords: short-term forecasting; electricity market prices; Iberian electricity market (MIBEL); daily session prices; intraday session prices short-term forecasting; electricity market prices; Iberian electricity market (MIBEL); daily session prices; intraday session prices
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Monteiro, C.; Ramirez-Rosado, I.J.; Fernandez-Jimenez, L.A.; Conde, P. Short-Term Price Forecasting Models Based on Artificial Neural Networks for Intraday Sessions in the Iberian Electricity Market. Energies 2016, 9, 721.

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