Rural electrification scheme is aimed at promoting the welfare of the rural community and improve the economic status of the people. The presence of the National Electric Power Authority (NEPA) is rarely felt, that the supply of power to Bayelsa from the grid is less than 10 percent. The Kolo creek gas turbine is only available to only two local communities in the state. The paper therefore is aimed at presenting these problems by studying the problems facing the present scheme in terms of capital cost, the dispersed settlement, the load profile and transport system. It was seen that the coastal environment and the fairly big rivers coupled with the high capital cost are major impediments to successful electrification of the state. It was seen that it cost sever time more than an equivalent scheme in the upload areas. With the abundant oil and gas resources and the renewable energies (solar and wind), off grid electrification project could be the solution to the electrification scheme if properly harnessed.

Nigeria is a country blessed with abundant sources of energy. The choice of energy for electricity generation in an area has always been influenced by political motives that the proper choice of energy type and the economic advantages are not considered. Due to these wrong foundations the stable power supply has been seen in Nigeria as an impossible target. The paper therefore is aimed at considering the available sources of energy in Nigeria and to suggest the best energy mix that will make this dream a reality. For this reason studies were carried out in some parts of the world as regards to: (i) The sources of energy available, (ii) The energy mix, (iii) The generating sources and the available energy. From the study it was seen that Nigeria primary energy resources are in excess of its domestic electric energy requirements that it should not experience electricity supply inadequacies. One of the solutions to adequate and stable power supply is to have a proper energy mix with proper load projection and good management system.

Problem statement: Due to the climatic variation for the year and it's sever harmattan during the month of December to March with the high keraunic level (80-90) in the areas, it was necessary to know the seasonal variation of soil resistivity. The seasonal variation and the nature of soil have considerable influence on electrical characteristics and therefore affect the earthling system performance. Approach: Eighteen sites were chosen from three main soil divisions. The soil resistivity was taken in each of the site at depths of 0.5, 0.8 and 1.2 m using the four point test instrument (Wenner Method). From the selected sites in the three soil divisions the temperature was also taken at depths of 0.2, 0.5, 0.8 and 1.0 m. Results: The coefficient of seasonal variation at the depth of 0.5 m was high and reduced drastically at a depth of 1.2 m. The soil temperature was higher than the ambient temperature at the depth of 0.2 m during the months of December to March. From 0.8 m depth and below the temperature reduced even during the dry seasons. Conclusion: The coefficient of seasonal variation of soil at the depth of 0.8 and 1.2 m was small (1.8-3.0) throughout the year in all soil types. That indicates the high water level and or the permanent moisture table which gives an advantage to low soil resistivity for buried conductors and electrodes in the area

Aim:To investigate the effect of defective barrier on the optimum breakdown voltage, using positive and negative needle electrodes in an air medium of 10cm gap distance. Methodology: The barriers for the tests were placed at 2.5cm from the point electrode for each test. The defective barriers were created by having holes of 6mm, 8mm, 12mm and 20mm diameter at the centre of the barrier. For each barrier position the breakdown test for positive and negative polarity for needle electrodes were carried out. Also, tests were carried out with non defective barrier and with point-plane airgap (without barrier). Result: From the test without barrier the negative point electrode offered higher breakdown voltage (1.8 times), than the positive point. When with plain barrier the positive point was optimized to 1.6 times, while the negative point was lowered. The optimum breakdown voltage decreased gradually as the hole diameter increased and at 20mm hole diameter the effect was like the plain barrier. Conclusion: From the results, optimization is only effective with positive point's electrode and it endures even with small opening within the ionization zone. It is necessary to check this in practical situations because the specified optimum voltage of an equipment may be lowered.

The environmental condition of Niger Delta is harsh with average humidity of about 85 percent (relative), and rainfall of about 2500mm. Some of the factors may affect the machine directly or indirectly. It is necessary to take a critical study to identify the effect of humidity so that proper selection could be made for safe operation and for longer life of the equipment.From the results, humidity was the most severe environmental factor that affect the machine. It was also seen that a motor stored in that environment for a year looses 15 percent of its life span due to humidity The humid effect is more severe in the rainy season therefore proper selection of machine and frequent check and drying is necessary to keep a longer life of the machine.