An artificial neural network to assess the impact of neighbouring photovoltaic systems in power forecasting in Utrecht, the Netherlands

A. G R Vaz, B. Elsinga, W. G J H M van Sark, M. C. Brito*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

In order to perform predictions of a photovoltaic (PV) system power production, a neural network architecture system using the Nonlinear Autoregressive with eXogenous inputs (NARX) model is implemented using not only local meteorological data but also measurements of neighbouring PV systems as inputs. Input configurations are compared to assess the effects of the different inputs. The added value of the information of the neighbouring PV systems has demonstrated to further improve the accuracy of predictions for both winter and summer seasons. Additionally, forecasts up to 1 month are tested and compared with a persistence model. Normalized root mean square errors (nRMSE) ranged between 9% and 25%, with the NARX model clearly outperforming the persistence model for forecast horizons greater than 15min.

Original languageEnglish
Pages (from-to)631-641
Number of pages11
JournalRenewable Energy
Volume85
DOIs
Publication statusPublished - 1 Jan 2016

Keywords

  • Artificial neural network
  • Forecasting
  • NARX model
  • Photovoltaics
  • Time series
  • valorisation

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