The power sector is the backbone of any thriving economy, providing the necessary energy for industrial, commercial, and domestic activities. In Nigeria, as in many developing nations, the power sector has been marred by persistent challenges, hindering the nation's economic growth and development. This dissertation seeks to delve into the intricate workings of the 33 MVA distribution grid in Nigeria, examining its role in the broader context of the nation's power sector, and proposing strategic interventions to address the prevailing issues. Nigeria, with its rapidly growing population and expanding economy, faces a continuous struggle to meet the escalating demand for electricity. The 33 MVA distribution grid plays a pivotal role in the final stage of the power supply chain, distributing electricity to end-users across various regions. However, despite the significance of this grid, there are systemic challenges that have hampered its effectiveness. In this report we are going to have an overview of how I conducted my thesis research report with the help of my supervisor Dr János Kosa. In my research report, we divided it into five main segments of which I wrote a detailed description of each segment to give an idea of what we are working with and how it all builds up together eventually. The following are the five main segments are listed below:

1. Show the Nigerian power grids.
2. Direction of development in Nigeria.
3. Design a medium voltage grid.
4. Calculation of the grid.
5. Applied switch gears in planned system.