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This paper uses intraday electricity demand data from Mahakam-East Kalimantan city as the basis of an empirical comparison of univariate methods for prediction up to a day-ahead. A notable feature of the time series is the presence of both an intraday and an intraweek seasonal cycle. The forecasting methods considered in the study include: Double seasonal ARIMA modeling of the daily demand profiles. The Double seasonal ARIMA methods performed well, the method that consistently performed the best was the double seasonal.