International Journal of Scientific and Research Publications

IJSRP, Volume 5, Issue 4, April 2015 Edition [ISSN 2250-3153]

Impact of Load Diversity on the Design of Isolated Grid Solar PV systems for Rural Communities in Ghana
      Stephen Afonaa-Mensah, David Asante
Abstract: Rural communities are characterized by low energy consumption and poor load factor. The use of off-grid systems to provide electricity to these communities must be done taking into consideration the peculiar nature of rural communities to improve the utilization of the installed capacity. In many situations where off-grid technology is employed for rural electrification, community-level power supply systems could have been a better option as compared to other off-grid technologies such as the stand-alone systems. This is due to the fact that all individual loads connected to power supply systems are not used simultaneously; there is always some degree of diversity. In this paper, community-isolated grid solar PV system has been designed for Yabiw rural community. In the design, demand factor and diversity factor of 0.3 and 1.7 were considered respectively. This resulted in 82.35% reduction of daily power estimated for the community in the design of community level isolated grid system from 109.856kW to 19.386kW. There was subsequent reduction in the size of all solar PV components estimated for the community level isolated grid system. The size of inverter and the charge controller reduced in equal proportion of 82.35% as the reduction in the power demand. The sizes of Solar panel, battery bank and cable required also reduced by 82.14%, 81.08% and 77.14% respectively. Considering community-level isolated grid system where viable, for rural electrification project can significantly reduce the size of solar PV systems and subsequently the cost of off-grid rural electrification projects.

Reference this Research Paper (copy & paste below code):

Stephen Afonaa-Mensah, David Asante (2018); Impact of Load Diversity on the Design of Isolated Grid Solar PV systems for Rural Communities in Ghana; Int J Sci Res Publ 5(4) (ISSN: 2250-3153).
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