Econonomics of Energy and Environmental Policy

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The Impact of Renewable Energy Forecasts on Intraday Electricity Prices

In this paper we study the impact of errors in wind and solar power forecasts on intraday electricity prices. We develop a novel econometric model which is based on day-ahead wholesale auction curves data and errors in wind and solar power forecasts. The model shifts day-ahead supply curves to calculate intraday prices. We apply our model to the German EPEX SPOT data. Our model outperforms both linear and non-linear benchmarks. Our study allows us to conclude that errors in renewable energy forecasts exert a non-linear impact on intraday prices. We demonstrate that additional wind and solar power capacities induce non-linear changes in the intraday price volatility. Finally, we comment on economical and policy implications of our findings.
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Keywords: Energy economics, Energy forecasting, Energy Policy, Forecasting and Prediction Methods, Renewable Resources

DOI: 10.5547/2160-5890.10.1.skul

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Published in Volume 10, Number 1 of The Quarterly Journal of the IAEE's Energy Economics Education Foundation.


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