SHS is popular when it replacesany lamp run by kerosene or wax. In Bangladesh Solar Home System (SHS) has reached a great number of installations by the effective programs run by Infrastructure Development Company Limited (IDCOL) which has been started about 12 years ago. It has raised national and international concern and efforts to develop alternative renewable sources of primary energy such as solar, biomass, wind, hydro and other green power technologies are being used to provide sustainable, affordable and comfortable sources of energy. By burning fossil fuels, increasing carbon dioxide (CO2) is rocketed into the atmosphere. The cost of fuels is high and for this reason the cost of expected generating power is increased tremendously in rustic areas. Majority of the islands and the rustic communities are deprived from electricity and most of them are relying on some fossil fuels for searching their required energy. Generation of electricity is not enough to serve its demand. This pressure, paired with the standardization of a 24VDC plug and socket, will cause substantial increases in DC microgrid usage in the next 10 years.This paper is mainly addressing the design and analysis of a DC micro grid power system in a remote area in Bangladesh. It was concluded that continued advancement in code development will come from pressure to increase energy efficiency. However, with proper regulation and design standards, building occupants never encounter voltage higher than 24VDC, which is significantly safer than existing 120VAC in the United States.ĭC Microgrids have several disadvantages such as higher initial cost due, in part, to unfamiliarity of the system as well as a general lack of code recognition and efficiency metric recognition leading to difficult certification and code compliance.Ĭase studies are cited in this paper to demonstrate energy reduction possibilities due to the lack of modeling ability in current energy analysis programs and demonstrated energy savings of approximately 20%. Occupant safety is a perceived concern with DC microgrids due to the lack of knowledge and familiarity in regards to these systems. DC distribution results in a more reliable electrical service due to short transmission distances, high service reliability when paired with on-site generation, and efficient storage. Energy savings would result from a lower grid strain and more efficient utilization of the utility grid. DC generation, paired with the growing DC load profile, increases energy savings by utilizing DC architecture and eliminating wasteful conversions. Distributed generation, or on-site generation from photovoltaic panels, wind turbines, fuel cells, or microturbines, is more efficient when the power is transmitted by DC. Because the decisions for distribution were made over 100 years ago, it could be time to rethink the standards of power distribution.Ĭompared to traditional AC distribution, DC microgrids are significantly more energy efficient when implemented with distributed generation. DC power was first produced in 1800, but the shift to AC occurred in the 1880’s with the advent of the transformer. This paper discusses a brief history of electricity, specifically alternating current (AC) and direct current (DC), and how the current standard of AC distribution has been reached.
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