Sizing solar-based mini-grids for growing electricity demand: Insights from rural India
Sizing solar-based mini-grids for growing electricity demand: Insights from rural India
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调整太阳能迷你电网规模以满足不断增长的电力需求：来自印度农村的见解
DOI：
10.1088/2515-7655/ac9dc0
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
J. Nelson
中科院分区：
文献类型：
--
作者：
Reena Sayani;P. Ortega;Philip Sandwell;Oytun Babacan;A. Gambhir;D. Robinson;J. Nelson
迷你电网是根据社区当前和预计的电力需求实现电力接入目标的关键方式，因此适当调整其规模对于确保其财务可行性至关重要。然而，对等待电力接入的社区的需求的估计是不确定的，并且在估计迷你电网规模时很少考虑需求的增长以及相关的成本影响。通过对印度两个农村社区的案例研究，我们使用两种不同的系统规模调整方法，评估了需求增长对由太阳能光伏 (PV) 电池板和电池存储组成的迷你电网系统的财务成本和性能的影响。我们展示了当使用多阶段方法（即迷你电网分几个阶段逐渐扩展）而不是单阶段优化方法来调整迷你电网规模时，成本节省潜力高达 12%。我们通过改变六个关键参数对两种规模调整方法的成本进行敏感性分析：需求增长率、物流成本、系统调整规模频率、停电可能性、太阳能光伏和电池成本以及退化率。其中，我们发现系统成本对太阳能光伏和电池的需求增长率和成本下降最为敏感。我们的研究表明，需求增长情景和微电网规模调整方法的选择对于农村电气化系统的设计具有重要的财务和运营影响。
Mini-grids are a critical way to meet electricity access goals according to current and projected electricity demand of communities and so appropriately sizing them is essential to ensure their financial viability. However, estimation of demand for communities awaiting electricity access is uncertain and growth in demand along with the associated cost implications is rarely considered during estimation of mini-grid sizing. Using a case study of two rural communities in India, we assess the implications of demand growth on financial costs and performance of a mini-grid system consisting of solar photovoltaic (PV) panels and battery storage using two different system sizing approaches. We show a cost-saving potential of up to 12% when mini-grids are sized using a multi-stage approach where mini-grids gradually expand in several stages, rather than a single-stage optimisation approach. We perform a sensitivity analysis of the cost of the two sizing approaches by varying six key parameters: demand growth rate, logistics cost, system re-sizing frequency, likelihood of blackouts, solar PV and battery cost, and degradation rate. Of these, we find that system costs are most sensitive to variations in demand growth rates and cost decreases in solar PV and batteries. Our study shows that demand growth scenarios and choice of mini-grid sizing approaches have important financial and operational implications for the design of systems for rural electrification.
发展中国家分散式可再生能源项目的可持续性：赞比亚的经验教训
影响因子：
3.2
作者：
Stritzke S
通讯作者：
Stritzke S
获得电力的人口的电力需求：农村和气候条件的影响以及对微电网设计的影响
影响因子：
5.5
作者：
Few S
通讯作者：
Few S
难民营太阳能-柴油混合微型电网的潜力：以卢旺达 Nyabiheke 难民营为例
影响因子：
8
作者：
Baranda Alonso J
通讯作者：
Baranda Alonso J