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Julián Urrego-Ortiz, J. Alejandro Martínez, Paola A. Arias and Álvaro Jaramillo-Duque
The description and forecasting of hourly solar resource is fundamental for the operation of solar energy systems in the electric grid. In this work, we provide insights regarding the hourly variation of the global horizontal irradiance in Medellín, Colo...
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Xin Zhou, Yangang Liu, Yunpeng Shan, Satoshi Endo, Yu Xie and Manajit Sengupta
An accurate forecast of Global Horizontal solar Irradiance (GHI) and Direct Normal Irradiance (DNI) in cloudy conditions remains a major challenge in the solar energy industry. This study focuses on the impact of cloud microphysics on GHI and its partiti...
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Francisco Diego Vidal Bezerra, Felipe Pinto Marinho, Paulo Alexandre Costa Rocha, Victor Oliveira Santos, Jesse Van Griensven Thé and Bahram Gharabaghi
This paper proposes to analyze the performance increase in the forecasting of solar irradiance and wind speed by implementing a dynamic ensemble architecture for intra-hour horizon ranging from 10 to 60 min for a 10 min time step data. Global horizontal ...
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Bikhtiyar Ameen, Heiko Balzter, Claire Jarvis and James Wheeler
More accurate data of hourly Global Horizontal Irradiance (GHI) are required in the field of solar energy in areas with limited ground measurements. The aim of the research was to obtain more precise and accurate hourly GHI by using new input from Satell...
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Lucky Ntsangwane, Brighton Mabasa, Venkataraman Sivakumar , Nosipho Zwane , Katlego Ncongwane, Joel Botai
This study reports on the performance results of the Baseline Surface Radiation Network (BSRN) quality control procedures applied to the solar radiation data, from September 2013 to December 2017, within the South African Weather Service radiometric netw...
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Michael J Brooks, Sven du Clou, Wikus L. van Niekerk, Paul Gauché, Corli Leonard, Michael J. Mouzouris, Riaan Meyer, Nic van der Westhuizen, Ernest E. van Dyk, Frederik J. Vorster
A new resource for sun strength data in Southern Africa has been established with the commissioning of a regional network of solar monitoring stations. The Southern African Universities Radiometric Network (SAURAN) is an initiative of Stellenbosch Univer...
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Edmore Ranganai, Mphiliseni B Nzuza
Extra-terrestrially, there is no stochasticity in the solar irradiance, hence deterministic models are often used to model this data. At ground level, the Box-Jenkins Seasonal/Non-seasonal Autoregressive Integrated Moving Average (S/ARIMA) short memory s...
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Vateanui Sansine, Pascal Ortega, Daniel Hissel and Franco Ferrucci
For grid stability, operation, and planning, solar irradiance forecasting is crucial. In this paper, we provide a method for predicting the Global Horizontal Irradiance (GHI) mean values one hour in advance. Sky images are utilized for training the vario...
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Stefano Alessandrini, Ju-Hye Kim, Pedro A. Jimenez, Jimy Dudhia, Jaemo Yang and Manajit Sengupta
The WRF-Solar Ensemble Prediction System (WRF-Solar EPS) and a calibration method, the analog ensemble (AnEn), are used to generate calibrated gridded ensemble forecasts of solar irradiance over the contiguous United States (CONUS). Global horizontal irr...
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Abdulaziz Alhammad, Qian (Chayn) Sun and Yaguang Tao
Many countries have set a goal for a carbon neutral future, and the adoption of solar energy as an alternative energy source to fossil fuel is one of the major measures planned. Yet not all locations are equally suitable for solar energy generation. This...
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Takahiro Takamatsu, Hideaki Ohtake, Takashi Oozeki, Tosiyuki Nakaegawa, Yuki Honda and Masahiro Kazumori
From the perspective of stable operation of the power transmission system, the transmission system operators (TSO) needs to procure reserve adjustment power at the stage of the previous day based on solar power forecast information from global horizontal...
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Edina Chandiwana, Caston Sigauke and Alphonce Bere
Probabilistic solar power forecasting has been critical in Southern Africa because of major shortages of power due to climatic changes and other factors over the past decade. This paper discusses Gaussian process regression (GPR) coupled with core vector...
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Manoel Henriques de Sá Campos and Chigueru Tiba
Ground images with a sky camera have become common to evaluate cloud coverage, aerosols, and energy collection. In parallel, the growth of solar energy has led to an impulse to evaluate and forecast the solar potential in a site before investments, which...
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Theodoros Katopodis, Iason Markantonis, Nadia Politi, Diamando Vlachogiannis and Athanasios Sfetsos
In the context of climate change and growing energy demand, solar technologies are considered promising solutions to mitigate Greenhouse Gas (GHG) emissions and support sustainable adaptation. In Greece, solar power is the second major renewable energy, ...
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Phathutshedzo Mpfumali, Caston Sigauke, Alphonce Bere and Sophie Mulaudzi
Due to its variability, solar power generation poses challenges to grid energy management. In order to ensure an economic operation of a national grid, including its stability, it is important to have accurate forecasts of solar power. The current paper ...
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Bikhtiyar Ameen, Heiko Balzter and Claire Jarvis
Solar Radiation (SR) data are required for many disciplines and applications. The ground measurement of SR data is hampered by technical and operational errors. Therefore, several approaches have been developed to detect these errors. This study aimed to...
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Caston Sigauke, Thakhani Ravele and Lordwell Jhamba
The interaction between global horizontal irradiance (GHI) and temperature helps determine the maximum amount of solar power generated. As temperature increases, GHI increases up to the point that it increases at a decreasing rate and then decreases. The...
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