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Economic viability of captive off-grid solar photovoltaic and diesel hybrid energy systems for the Nigerian private sector
Renewable and Sustainable Energy Reviews ( IF 16.3 ) Pub Date : 2019-08-26 , DOI: 10.1016/j.rser.2019.109348
Adewale A. Adesanya , Joshua M. Pearce

It is well established that lack of both electric supply capacity and reliability weaken the Nigerian economy. Recently, the reduction in solar photovoltaic (PV) costs along with the technical potential to couple PV to hybrid battery and diesel generators provides Nigerian businesses with an opportunity to reduce operating costs while defecting from the grid. This study investigates the potential of using off-grid hybrid energy systems for private industries within and near Lagos state currently with relatively high daily electricity demands that are met with supply through captive diesel generation. The results based on simulations of six industry sector load profiles developed from surveys found solar PV and diesel hybrid energy systems are economically viable for a wide array of industries in the Nigerian private sector including real estate, education, banking, automobile, hospitality and production. Five of the six sectors had discounted payback times for the systems under a year and ROIs >100%. The results established that the levelized cost of electricity is lower for every sector analysed with inclusion of solar PV, lower still with coupling of batteries and more reliable than the current grid-provided electricity. Nigeria as a whole will also benefit from widespread adoption of solar hybrid systems, as it will assist the balance of trade by reducing refined petroleum imports. In conclusion, the results of this study make it clear that every scale of Nigerian businesses could increase profitability with the use of solar hybrid systems.



中文翻译:

尼日利亚私营部门的人工离网太阳能光伏和柴油混合能源系统的经济可行性

众所周知,缺乏电力供应能力和可靠性都会削弱尼日利亚的经济。最近,太阳能光伏(PV)成本的降低以及将PV耦合到混合动力电池和柴油发电机的技术潜力,为尼日利亚企业提供了降低运营成本,同时摆脱电网缺陷的机会。这项研究调查了在拉各斯州内和附近的私营企业中使用离网混合能源系统的潜力,这些企业目前每天的电力需求相对较高,而自备柴油发电可以满足这些需求。根据调查得出的六个行业部门负荷曲线的模拟结果,发现太阳能光伏和柴油混合能源系统对于尼日利亚私营部门的各种行业在经济上都是可行的,包括房地产,教育,银行,汽车,酒店和生产。六个部门中有五个部门在一年内对系统的投资回收期进行了打折,投资回报率> 100%。结果表明,与太阳能提供的电力相比,分析的每个部门(包括太阳能光伏)的平均电力成本都较低,与电池耦合时仍更低,并且更可靠。整个尼日利亚还将受益于太阳能混合系统的广泛采用,因为它将通过减少精炼石油的进口来促进贸易平衡。总之,这项研究的结果清楚地表明,尼日利亚的每一个规模的企业都可以通过使用太阳能混合系统来提高盈利能力。六个部门中有五个部门在一年内对系统的投资回收期进行了打折,投资回报率> 100%。结果表明,与太阳能提供的电力相比,分析的每个部门(包括太阳能光伏)的平均电力成本都较低,与电池耦合时仍更低,并且更可靠。整个尼日利亚还将受益于太阳能混合系统的广泛采用,因为它将通过减少精炼石油的进口来促进贸易平衡。总之,这项研究的结果清楚地表明,尼日利亚的每一个规模的企业都可以通过使用太阳能混合系统来提高盈利能力。六个部门中有五个部门在一年内对系统的投资回收期进行了打折,投资回报率> 100%。结果表明,与太阳能提供的电力相比,分析的每个部门(包括太阳能光伏)的平均电力成本都较低,与电池耦合时仍更低,并且更可靠。整个尼日利亚还将受益于太阳能混合系统的广泛采用,因为它将通过减少精炼石油的进口来促进贸易平衡。总之,这项研究的结果清楚地表明,尼日利亚的每一个规模的企业都可以通过使用太阳能混合系统来提高盈利能力。与电池耦合相比仍更低,并且比当前电网提供的电力更可靠。整个尼日利亚还将受益于太阳能混合系统的广泛采用,因为它将通过减少精炼石油的进口来促进贸易平衡。总之,这项研究的结果清楚地表明,尼日利亚的每一个规模的企业都可以通过使用太阳能混合系统来提高盈利能力。与电池耦合相比仍更低,并且比当前电网提供的电力更可靠。整个尼日利亚还将受益于太阳能混合系统的广泛采用,因为它将通过减少精炼石油的进口来促进贸易平衡。总之,这项研究的结果清楚地表明,尼日利亚的每一个规模的企业都可以通过使用太阳能混合系统来提高盈利能力。

更新日期:2019-08-26
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