Comparative Analysis of Methods for Hourly Electricity Demand Forecasting in the Absence of Data – A Case Study
| 31 mar 2023
Data publikacji: 31 mar 2023
Zakres stron: 34 - 50
Otrzymano: 01 lis 2022
Przyjęty: 01 sty 2023
DOI: https://doi.org/10.2478/ers-2023-0003
Słowa kluczowe
© 2023 Jan Zawadzki, published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
Scope and purpose of work
This paper examines the impact of the number of gaps in data, the analytical form, and the model type selection criterion on the accuracy of interpolation and extrapolation forecasts for hourly data.
Materials and methods
Forecasts were developed on the basis of predictors that are based on: classical time series forecasting models and regression time series forecasting models, hybrid time series forecasting models and hybrid regression forecasting models for uncleared series, and exponential smoothing models for cleared series of two or three types of seasonal fluctuations, with minimum estimates of errors in interpolation or extrapolation forecasts.
Results
Adaptive and hybrid regression models have proved to have the most favorable predictive properties. Most hybrid time series models for systematic and non-systematic gaps and for both analytical forms are single models that generally describe fluctuations within a 24-hour cycle.
Conclusions
The lowest estimators of prediction errors involving interpolation were obtained for exponential smoothing models, followed by hybrid regression models. A reverse sequence was obtained for extrapolative forecasting.