Feed-In Forecasts for Photovoltaic Systems and Economic Implications of Enhanced Forecast Accuracy

Oliver Ruhnau and Reinhard Madlener

A chapter in Operations Research Proceedings 2015, 2017, pp 511-516 from Springer

Abstract: Abstract The combination of governmental incentives and falling module prices has led to a rapid increase of globally installed solar photovoltaic (PV) capacity. Consequently, solar power becomes more and more important for the electricity system. One main challenge is the volatility of solar irradiance and variable renewable energy sources in general. In this context, accurate and reliable forecasts of power generation are required for both electricity trading and grid operation. This study builds and evaluates models for day-ahead forecasting of PV electricity feed-in. Different state-of-the-art forecasting models are implemented and applied to a portfolio of ten PV systems. More specifically, a linear model and an autoregressive model with exogenous input are used. Both models include inputs from numerical weather prediction and are combined with a statistical clear sky model using the method of weighted quantile regression. Forecasting-related economic implications are analyzed by means of a two-dimensional mean-variance approach. It is shown that enhanced forecast accuracy does not necessarily imply an economic gain.

Keywords: Forecast Model; Forecast Error; Forecast Accuracy; Mean Absolute Error; Balance Cost (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:spr:oprchp:978-3-319-42902-1_69

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DOI: 10.1007/978-3-319-42902-1_69

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