The GCC countries has a good location for the solar energy with high intensity of the solar radiation. This means that renewable energy provides many benefits for our climate, health and our economy. Photovoltaic PV becomes the new competitive energy resources of the planet and it can be engaged in both Distribution and Transmission systems. In the present study, considering design of solar cell for both Kingdom of Bahrain and United Kingdom (UK) with the same specification. The Panel Generation Factor (PGF) considered satisfying the specification of the cells, which depends on the climate. For both Kingdom of Bahrain and UK the total (kWp) of PV panel capacity, number of PV panels needed for design of 110 Wp PV module and Solar Charge Controller Rating are calculated based on PGF of each country. © 2018 Institution of Engineering and Technology. All rights reserved.