Electricity consumption forecasting in Brazil: A spatial econometrics approach
| Autor: | Joilson de Assis Cabral, Maria Viviana de Freitas Cabral, Luiz Fernando Loureiro Legey |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Consumption (economics)
Mains electricity business.industry 020209 energy Mechanical Engineering 02 engineering and technology Building and Construction Energy security 010501 environmental sciences 01 natural sciences Pollution Industrial and Manufacturing Engineering General Energy Mean absolute percentage error 0202 electrical engineering electronic engineering information engineering Economics Econometrics Spatial econometrics Electricity Autoregressive integrated moving average Electrical and Electronic Engineering business Spatial analysis 0105 earth and related environmental sciences Civil and Structural Engineering |
| Zdroj: | Energy. 126:124-131 |
| ISSN: | 0360-5442 |
| DOI: | 10.1016/j.energy.2017.03.005 |
| Popis: | This paper proposes an alternative method for applying the Moran's I test in exploratory analyses for spatial autocorrelation. An application of this new method found evidence that regional electricity consumption in Brazil is spatially dependent, presenting a spatial pattern of dissimilarity among regions. Such dependence suggests that the space dimension must be included in the specification of the forecast model to be used so as to ensure consistent, unbiased and efficient estimates. To achieve a higher energy security in the Brazilian Electricity Sector, it is essential to have accurate forecasts of the electricity consumption, and so a forecasting method that considers the spatiotemporal dynamics was proposed. The Spatial ARIMA model (ARIMASp) presented in this paper shows a better predictive performance - measured by a reduction of the Mean Absolute Percentage Error of forecasts - as compared to the ARIMA model. These results confirm that spatiotemporal models can improve forecasts of electricity demand in Brazil and demonstrate that considering spatial correlations is paramount to achieving the Brazilian Electricity Sector goals of security of electricity supply, affordability of tariffs and universalization of access to the Brazilian population. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect