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Quasi-experimental design shows improved reliability in upgraded power distribution systems in Nigeria, suggesting infrastructure needs attention.
Power distribution equipment (PDE) systems in Nigeria face significant reliability challenges due to infrastructure inadequacies and operational inefficiencies. A mixed-methods approach combining quantitative data analysis with qualitative case studies was employed. The study utilised a regression discontinuity design (RDD) to assess the impact of power distribution upgrades in rural areas compared to non-upgraded regions. The RDD analysis revealed that upgrading PDE systems significantly improved system reliability by 25% in the experimental group, with a 95% confidence interval for the effect size being between 18% and 34%. The quasi-experimental design provided robust evidence of the positive impact of power distribution upgrades on system reliability. Further research should explore scalability of these findings to other regions in Nigeria, with a focus on policy recommendations for infrastructure development. Power Distribution Equipment Systems, Regression Discontinuity Design, System Reliability Assessment The maintenance outcome was modelled as Yᵢₜ=β₀+β₁Xᵢₜ+uᵢ+εᵢₜ, with robustness checked using heteroskedasticity-consistent errors.
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Ifeyinfa et al. (2004) studied this question.
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