EQUITABLE POWER LOSS ALLOCATION IN NIGERIAN DISTRIBUTION NETWORKS: IMPLEMENTING THE GENERATOR-LOAD PAIR CONTRIBUTION TECHNIQUE WITH DISTRIBUTED GENERATOReration Integration
DOI:
https://doi.org/10.63747/jeis.v1i1.8Keywords:
Distributed generation, loss allocation, Nigerian power sector, renewable integration, regional energy equity, grid decentralizationAbstract
While the Contribution of Generator-Load Pairs Technique has been validated in international studies—particularly on benchmark networks like IEEE systems—its application to real-world distribution networks in Nigeria remains limited. This study applies the method to the Imalefalafia 32-bus feeder operated by the Ibadan Electricity Distribution Company (IBEDC), integrating Distributed Generation (DG) and employing a three-phase methodology. First, the Backward/Forward Sweep (BFS) algorithm was used for power flow analysis, which is well-suited to radial networks with high resistance-to-reactance (R/X) ratios. Next, the generator-load pair technique was adapted to trace and allocate losses to specific grid interactions. Finally, the framework was validated using detailed field data—including unbalanced loads, line impedances, and multiple DG integration points—capturing the structural and operational challenges common in Nigerian systems. Results show a 57.34% reduction in active power losses (from 70.11 kW to 29.91 kW) and enhanced voltage stability, with the L-index dropping from 0.75 to 0.46. Loss allocation was traced to generator-load pairs: the main substation (bus 1) accounted for 23.39 kW, while high-demand loads like bus 31 bore 3.20 kW. The method ensured equitable distribution—assigning zero loss to inactive buses and higher shares to more impactful ones. This study contributes by applying the technique to an operational Nigerian feeder, providing both technical insight and regulatory relevance to support DG adoption in developing economies.
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