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Evaluating energy efficiency in Turkish electric distribution using network DEA and GA models.
1Ondokuz Mayıs University, Samsun, Türkiye. serpil.gumustekin@omu.edu.tr.
Scientific Reports
|July 2, 2025
Summary
This study evaluated Turkey's electricity distribution companies using network data envelopment analysis (NDEA) and genetic algorithms (GA). Sakarya EDC excelled, demonstrating optimal performance across generation, transmission, and distribution processes.
Area of Science:
- Energy Economics
- Operations Research
- Environmental Sustainability
Background:
- Evaluating energy efficiency in electricity distribution is crucial for sustainable development.
- Traditional methods may not fully capture the complexities of electricity distribution processes.
- Turkey's energy sector requires efficient operational strategies.
Purpose of the Study:
- To assess the energy efficiency of Turkey's electricity distribution companies.
- To compare traditional Data Envelopment Analysis (DEA) with network DEA (NDEA) and genetic algorithms (GA).
- To identify best practices and areas for improvement in the sector.
Main Methods:
- Employed Data Envelopment Analysis (DEA) for initial efficiency evaluation.
- Utilized Network DEA (NDEA) to analyze sub-processes: generation, transmission, and distribution.
- Applied Genetic Algorithms (GA) for optimizing input-output configurations and evaluating renewable energy efficiency.
Main Results:
- Network DEA provided more realistic efficiency scores compared to traditional DEA.
- Sakarya EDC was identified as a benchmark, achieving efficiency in all three sub-processes.
- Genetic Algorithms yielded efficiency scores approximately 10% higher than traditional DEA methods.
- Only Boğaziçi EDC was found efficient in 2015 among the evaluated companies.
Conclusions:
- NDEA offers a comprehensive approach to energy efficiency by dissecting operational stages.
- GA enhances efficiency analysis by providing optimization insights.
- Findings highlight the need for targeted investments to improve Turkey's energy distribution efficiency and sustainability.
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