Using solar power as an alternative source of electrical energy for street lighting in Ghana

S. Nunoo, J. C. Attachie, Charles Abraham
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引用次数: 21

Abstract

Streetlights in Ghana receive electrical energy from the national grid. To pay for the energy consumed, residential consumers on the grid are levied 0.0001 of their total monthly consumption. Unfortunately, these levies are inadequate to defray the cost. There is therefore the need to look at other alternative sources of electrical power, which do not depend on the national grid to light the streetlights. The findings show that most streetlights in Ghana are not metered, thus making it impossible to bill the respective District Assemblies. Again, the socio-political climate in the country complicates the design process by not allowing for ample time for a thorough design work to be done before incorporating streetlights onto the national grid. This paper discusses the use of solar power as an alternative source of electrical energy for street lighting in Ghana. It proposes the use of LED-based lighting systems that receive energy from lead-acid batteries, charged by the solar panels. The design has an auto turn-on and turn-off for the streetlights and for charging the back-up batteries. The expectation is that changing to the LED-based street lighting system will lead to an increased initial installation cost but the savings made due to the reduced maintenance cost is enormous.
使用太阳能作为加纳街道照明的替代能源
加纳的路灯从国家电网获得电能。为了支付所消耗的能源,电网上的住宅消费者被征收每月总消费量的0.0001。不幸的是,这些税收不足以支付成本。因此,有必要寻找其他替代电力来源,不依赖于国家电网来点亮路灯。调查结果显示,加纳的大多数路灯没有计量表,因此不可能向各区议会收取账单。再一次,该国的社会政治气候使设计过程复杂化,因为在将路灯纳入国家电网之前,没有足够的时间来完成彻底的设计工作。本文讨论了利用太阳能作为加纳街道照明的一种替代能源。它建议使用基于led的照明系统,该系统从铅酸电池接收能量,由太阳能电池板充电。这个设计有一个自动开关,用于路灯和给备用电池充电。我们的预期是,改为基于led的街道照明系统将导致初始安装成本的增加,但由于维护成本的降低而节省的费用是巨大的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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