Dergiler / Gazi University Journal of Science Part A: Engineering and Innovation / 2025 / Volume: 12 Issue: 4

Time Series Analysis of Solar Energy Production Based on Weather Conditions

Mehmet Bülüç(MEHMET AKİF ERSOY ÜNİVERSİTESİ, FEN BİLİMLERİ ENSTİTÜSÜ)0009-0003-8089-463X
Onur Sevli(MEHMET AKIF ERSOY UNIVERSITY)0000-0002-8933-8395
Lokman Yünlü(MEHMET AKIF ERSOY UNIVERSITY)0000-0003-1625-995X
Sayfa
—
Yayın Tarihi
2025-12-31
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

The outcomes provide methodological insights that may contribute to the optimization of solar energy projects and the integration of renewable energy into sustainable energy strategies.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:This study investigates the impact of weather conditions on solar energy production by comparing the performance of different time series forecasting models.
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Temel Bulgular & Veri:Three forecasting models—ARIMA, LSTM, and FB-Prophet—were implemented to evaluate their predictive performance.
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Sonuç & Katkı:The outcomes provide methodological insights that may contribute to the optimization of solar energy projects and the integration of renewable energy into sustainable energy strategies.
🔬Tür:Modelleme & Sayısal Simülasyon
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Solar Energy · Time Series Analysis · Renewable Energy Forecasting

Abstract

This study investigates the impact of weather conditions on solar energy production by comparing the performance of different time series forecasting models. Production data obtained from the İkitelli Solar Power Plant in Istanbul, together with simultaneous meteorological variables such as sunshine duration, cloudiness, humidity, and temperature, were analyzed. Three forecasting models—ARIMA, LSTM, and FB-Prophet—were implemented to evaluate their predictive performance. The accuracy of the models was assessed using widely accepted statistical metrics including Mean Squared Error (MSE), Root Mean Squared Error (RMSE), Mean Absolute Error (MAE), and the coefficient of determination (R²). The results show that the ARIMA model achieved the highest accuracy in short-term forecasting with the lowest error rates, demonstrating its effectiveness in handling stationary time series. The LSTM model, a deep learning approach, proved successful in capturing long-term dependencies, offering a robust alternative despite requiring larger datasets for optimal performance. The FB-Prophet model stood out for its ability to account for seasonality and trends but exhibited lower accuracy in short-term fluctuations compared to ARIMA and LSTM. Additionally, the analysis revealed that solar energy production is strongly correlated with weather conditions. In particular, an increase in sunshine duration positively influenced electricity generation, while greater cloud cover led to significant reductions in production levels. These findings highlight the importance of incorporating meteorological data into forecasting models to enhance the accuracy and reliability of renewable energy predictions. Furthermore, the study emphasizes that selecting the appropriate forecasting model according to data characteristics is critical for effective energy management. The outcomes provide methodological insights that may contribute to the optimization of solar energy projects and the integration of renewable energy into sustainable energy strategies.

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Bu Makaleye Atıf Yap

Bülüç, M., Sevli, O., Yünlü, L. (2025). Time Series Analysis of Solar Energy Production Based on Weather Conditions. Gazi University Journal of Science Part A: Engineering and Innovation, Volume: 12 Issue: 4. https://doi.org/10.54287/gujsa.1797659

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