Africa is full of natural resources but is lacking to fulfil the energy needs of continent due to lack of technology. Nigeria as it seems is situated in the of Africa. with over 210 million population and 768 km² area Nigeria is still struggling to fulfil the electricity requirement of the country, as the data shows 46% of the overall country population is still not connected to grid and most of the electricity generation is being done by non-renewable energy resources which is responsible for pollution in the country. being as a developing nation Nigeria has to find out new possibilities to fulfil the electricity requirement and what is a better way than utilising the resource the entire Africa is known for i.e., sun. solar radiation level of Africa is far more than of the other continents. the research paper consists of the study of six zones of Nigeria and its potential to generate green energy in the country.

The significant expansion of connected aerial vehicles – Unmanned Aerial Vehicles (UAVs)/drones – is widened in various areas because of high mobility, dynamic configuration and low maintenance cost of UAVs. The researchers have not fully explored the various research issues in aerial network despite of rapidly increased usage of UAVs in several areas over the last few years. In this context, this chapter presents a comprehensive review on autonomous and connected aerial vehicles such as UAVs/drones in Internet of Things (IoT) environments focusing on research issues-based studies. The issues-based techniques in the aerial environment have been categorically described focusing on their limitations and technical contributions while considering various research metrics. The techniques suggested by researchers have been categorized based on five various issues existing in the research area of connected aerial vehicles. These five issues are named as data collection, computing, routing, security and energy efficiency. Specifically, the significance of autonomous and connected aerial vehicles in IoT environments is highlighted. Following the issues-based taxonomy, a technique-based qualitative review is carried out on various research challenges raised in aerial environments while focusing on main functional components, weaknesses and strengths. The open research challenges related to connected aerial vehicles: UAVs and drones are identified as future research directions in the area.