A statistical methodology to identify imbalance-induced capacity wastes for LV networks

• Not considering single-phase peak current would underestimate imbalance induced additional reinforcement costs (ARCs). Adopting a probability study of ARC promotes its credibility on making investment decisions phase balancing. With the increase average load for LV networks, their ARCs do not continuously increase. Phase (i.e., among three phases) causes inefficient use three-phase distribution assets, resulting in (ARCs) compared to if phases were balanced. However, two problems remain unresolved when calculating ARC: 1) previous formulas assume that total and occur simultaneously, thus causing an underestimation ARC; 2) calculate as point value, using one year's load. value is credible supporting This because growth yearly inconsistent over years – could be positive or negative low voltage (415 V, LV) networks. To address above problems, this paper originally develops updated formula; customised approach, named cluster-wise assessment, deliver confidence range any given network. approach only requires current, it applicable majority networks have minimal amount data. Case studies also identify counterintuitive finding how impact ARCs.