Electricity price modeling with stochastic time change

Borovkova S, Schmeck MD (2017)
ENERGY ECONOMICS 63: 51-65.

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Journal Article | Original Article | Published | English

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In this paper, we develop a novel approach to electricity price modeling, based on the powerful technique of stochastic time change. This technique allows us to incorporate the characteristic features of electricity prices (such as seasonal volatility, time varying mean reversion and seasonally occurring price spikes) into the model in an elegant and economically justifiable way. The stochastic time change introduces stochastic as well as deterministic (e.g., seasonal) features in the price process' volatility and in the jump component. We specify the base process as a mean reverting jump diffusion and the time change as an absolutely continuous stochastic process with seasonal component. The activity rate of the stochastic time change can be related to the factors that influence supply and demand. Here we use the temperature as a proxy for the demand and hence, as the driving factor of the stochastic time change, and show that this choice leads to realistic price paths. We derive properties of the resulting price process and develop the model calibration procedure. We calibrate the model to the historical EEX power prices and apply it to generating realistic price paths by Monte Carlo simulations. We show that the simulated price process matches the distributional characteristics of the observed electricity prices in periods of both high and low demand. (C) 2017 The Authors. Published by Elsevier B.V.
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Borovkova S, Schmeck MD. Electricity price modeling with stochastic time change. ENERGY ECONOMICS. 2017;63:51-65.
Borovkova, S., & Schmeck, M. D. (2017). Electricity price modeling with stochastic time change. ENERGY ECONOMICS, 63, 51-65. doi:10.1016/j.eneco.2017.01.002
Borovkova, S., and Schmeck, M. D. (2017). Electricity price modeling with stochastic time change. ENERGY ECONOMICS 63, 51-65.
Borovkova, S., & Schmeck, M.D., 2017. Electricity price modeling with stochastic time change. ENERGY ECONOMICS, 63, p 51-65.
S. Borovkova and M.D. Schmeck, “Electricity price modeling with stochastic time change”, ENERGY ECONOMICS, vol. 63, 2017, pp. 51-65.
Borovkova, S., Schmeck, M.D.: Electricity price modeling with stochastic time change. ENERGY ECONOMICS. 63, 51-65 (2017).
Borovkova, Svetlana, and Schmeck, Maren Diane. “Electricity price modeling with stochastic time change”. ENERGY ECONOMICS 63 (2017): 51-65.
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