AR-GARCHモデルを用いた電力スポット価格の時系列分析とその応用 Time Series Analysis of Electricity Spot Price with AR-GARCH Model and its Application
For considerations of risk managements of electricity market trading, this paper presents a time series analysis of the day-ahead spot price traded in the PJM power market, taking correlations among hourly price motions into account. The time series was decomposed into the deterministic and stochastic components, the latter of which was analyzed by using the AR-GARCH model both for hourly data (single-factor model) and daily data of hourly prices (multi-factor model), where hourly data were given as a series of hourly prices. The Monte-Carlo price simulation with resulting model parameters well reconstructed the original hourly time series. It was demonstrated to estimate optimum bidding prices in the day-ahead electricity spot market by using this price simulation for an example of its application.
- 電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society
電気学会論文誌. B, 電力・エネルギー部門誌 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society 127(1), 61-69, 2007-01-01
The Institute of Electrical Engineers of Japan