Renewable Energy Resources and Technologies
Effect of Technological Mismatch on Photovoltaic Array: Analysis of Relative Power Loss

Stephen Ndubuisi Nnamchi; Onyinyechi Adanma Nnamchi; Kevin Nnanye Nwaigwe; Zaid Oluwadurotimi Jagun; Johnson Ugochukwu Ezenwankwo

Volume 8, Issue 4 , October 2021, , Pages 77-89

https://doi.org/10.30501/jree.2021.272915.1189

Abstract
  This study conducts a comparative evaluation of the performance of modules and the arrays under standard test conditions. An equivalent circuit model was developed alongside a computational scheme. The model input data were obtained from the manufacturer’s specification datasheets. They were used ...  Read More

Renewable Energy Resources and Technologies
Development of a Model for Estimation of Sunshine Hour Data for Different Regions of Uganda

Muhamad Mustafa Mundu; Stephen Ndubuisi Nnamchi; Onyinyechi Adanma Nnamchi

Volume 8, Issue 1 , January 2021, , Pages 69-76

https://doi.org/10.30501/jree.2020.235651.1119

Abstract
  The present study is concerned with the development, estimation and validation of sunshine hours models (SHM) in Uganda. The SHM is based on geographical (latitude) and climatological (clearness index) indices. The meteosat data (1984-2018) acquired from the National Aeronautics and Space Administration ...  Read More