Abstract
Modelling electricity prices after market deregulation has become notoriously difficult and yet more important due to the increase of price volatility. The aim of this work is to propose two alternative multivariate autoregressive models with \(\alpha \)-stable noise for modelling New Zealand electricity market prices. The models account for nodal price interrelations as well as price dependency on empirical factors. Moreover, a novel extension of classical approaches is provided by incorporating non-Gaussian noise structure to reproduce price spikes. The results are robust and show high accuracy in day-ahead forecasts and provide market participants with a sound basis for risk assessment.
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Jabłońska-Sabuka, M., Wylomanska, A. (2015). Multidimensional Analysis of New Zealand Electricity Prices. In: Chaari, F., Leskow, J., Napolitano, A., Zimroz, R., Wylomanska, A., Dudek, A. (eds) Cyclostationarity: Theory and Methods - II. CSTA 2014. Applied Condition Monitoring, vol 3. Springer, Cham. https://doi.org/10.1007/978-3-319-16330-7_8
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