Causal modeling and inference for electricity markets

Details Causal modeling and inference for electricity markets Causal modeling and inference for electricity markets

2011-10-25

arxiv.org/abs/1110.5429v1

Energy Economics (2011), 33(3):404-412

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Scientific paper

10.1016/j.eneco.2010.10.006

How does dynamic price information flow among Northern European electricity spot prices and prices of major electricity generation fuel sources? We use time series models combined with new advances in causal inference to answer these questions. Applying our methods to weekly Nordic and German electricity prices, and oil, gas and coal prices, with German wind power and Nordic water reservoir levels as exogenous variables, we estimate a causal model for the price dynamics, both for contemporaneous and lagged relationships. In contemporaneous time, Nordic and German electricity prices are interlinked through gas prices. In the long run, electricity prices and British gas prices adjust themselves to establish the equlibrium price level, since oil, coal, continental gas and EUR/USD are found to be weakly exogenous.

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