_____________________________________________________________________________________________________ *Corresponding author: Email: cezeliora@gmail.com; Journal of Engineering Research and Reports 1(1): 1-16, 2018; Article no.JERR.40973 Prediction and Appraisal of Solar Radiations and Its Intensity in South East Geopolitical Region, Nigeria Ogunoh, Arinze Victor 1* , Digitemie, Innocent Eteli 2 and Aguh, Patrick Sunday 3 1 KEO International Consultants, Dubai, United Arab Emirates. 2 Department of Mechanical Engineering Technology, Federal Polytechnic, Ekowe, Bayelsa State, Nigeria. 3 Department of Industrial and Production Engineering, Nnamdi Azikiwe University, Awka Anambra State, Nigeria. Authors’ contributions This work was carried out in collaboration between all authors. Author OAV did the review and restricting the work. Author DIE generated the data while author APS did the analysis of the work. Article Information DOI: 10.9734/JERR/2018/v1i19783 Editor(s): (1) Raad Yahya Qassim, Professor, Department of Ocean Engineering, The Federal University of Rio de Janeiro, Brazil. Reviewers: (1) Hao Li, University of Texas at Austin, USA. (2) Teoh Yeong Kin, Universiti Teknologi MARA (UiTM) Perlis, Malaysia. Complete Peer review History: http://www.sciencedomain.org/review-history/24610 Received 12 th February 2018 Accepted 21 st April 2018 Published 15 th May 2018 ABSTRACT This research work shows the variability of solar parameters. The parameters that are solar radiation, sun intensity and temperature were optimized and predicted in other to investigate its influence in Permanent site of Federal Polytechnic, Oko, Anambra State, South Eastern part of Nigeria. The research was conducted for the period of five days, 6:00am to 6:00pm daily on 6 th to 10 th December, 2017. Measuring the intensity of solar radiation is one of the directions used at an investigation of solar power and necessary for the implementation of photovoltaic systems in a particular geographical 'area. Instrument used for measuring the solar radiation is solarimeter which is based on the thermal or photovoltaic principles. The device harness two main components for measuring solar radiation, namely- direct radiation and diffuse radiation, with sensors based on the photovoltaic principles. The research tends to optimize and to develop the intended sun intensity and solar radiation principles and properties of the environs. From the optimization results, the maximum sun intensity of the geographical area is 957.620 w/m 2 while the minimum sun intensity of the area is 2 w/m 2 . However, the maximum temperature of the geographical area is 39.4˚С while the minimum temperature of the geographical area is 18.8˚С. The average sun Original Research Article