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Title	Accuracy Analysis Of Selected Time Series And Machine Learning Methods For Smart Cities Based On Estonian Electricity Consumption Forecast
ID_Doc	6009
Authors	Haring T.; Ahmadiahangar R.; Rosin A.; Korotko T.; Biechl H.
Year	2020
Published	Proceedings - 2020 IEEE 14th International Conference on Compatibility, Power Electronics and Power Engineering, CPE-POWERENG 2020
DOI	http://dx.doi.org/10.1109/CPE-POWERENG48600.2020.9161690
Abstract	Increasing shares of renewable energy sources in combination with rising popularity of demand response applications and flexibility programs forces higher awareness for production and consumption balancing. Accurate models for forecasting are not just necessary for PV-or wind power sources in smart cities, but also the prediction of loads respectively consumption, which can be based on time series analysis or machine learning methods. Three of those methods, namely a linear regression (LM), a long short-term memory network (LSTM) and a neural network model (NN), have been selected to see their performance on predicting the load of a large smart city on the example of the Estonian electricity consumption data. Hourly data of the year 2019 was used as training data to predict the first 20 days of 2020. For this kind of prediction, the LM showed the lowest root mean square error (RMSE) and had the lowest computational time. The neural network was slightly less accurate. The LSTM showed the worst performance in terms of accuracy and computational time. Thus, LSTM is not the preferred method for this kind of prediction and the recommendation for forecasting such loads would be a LM because the RMSE and computational effort needed are lower than for a NN. © 2020 IEEE.
Author Keywords	Distribution Grid; Load Forecast; Load Prediction; Machine Learning; Smart City; Time Series Analysis

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