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The research aims to develop a methodology to assess the cost-effectiveness of power distribution systems by identifying key performance drivers.

March 13, 2026Open Access

Methodological Evaluation and Panel-Data Estimation for Cost-Effectiveness in Nigeria's Power-Distribution Equipment Systems

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The research aims to develop a methodology to assess the cost-effectiveness of power distribution systems by identifying key performance drivers.
Constructed a panel dataset from utility operational records.
Applied a two-way fixed effects estimator for modeling cost-effectiveness.
Used a performance index and technical covariates in the analysis.
Utilized cluster-robust standard errors for inference.
Transformer loading ratio was identified as the most significant factor affecting cost-effectiveness.
A 10% increase in loading above optimal levels results in a 15-22% rise in annualized costs.
Findings are consistent across various model specifications.

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Panel-data analysis measures cost-effectiveness in Nigeria’s power distribution equipment, suggesting improved interventions.

Chinwe Okonkwo (2019) studied this question.

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