Summary
Presently, across the States in India, intraday variation of RE generation and demand are primarily managed by ramping generating units, electricity procurement through interstate transactions and power exchanges. While such an operational procedure provides flexibility and accommodates regional energy needs, it also introduces complexities in maintaining economic efficiency and system security. In federally structured power systems, like Indian grid, where individual generators may have multiple contracts with different entitlement capacity mapped to various distribution companies, maintaining economic efficiency while ensuring system security becomes even more challenging with existing practice of Merit
Read more Read lessOrder Dispatch (MOD) mechanism followed for generation dispatch by almost all State level system operators in India. This paper presents a comprehensive assessment of transitioning from the conventional MOD mechanism to a Security Constrained Economic Dispatch
(SCED) framework for intra-state power system operation in Maharashtra. Using one year of operational data (July 2024–June 2025), the study evaluates dispatch outcomes, operational flexibility, and economic performance under both approaches. The results demonstrate that
SCED enables more coordinated utilization of schedulable intrastate generators, leading to consistent cost savings, improved handling of intraday variability, and enhanced system-level efficiency. Beyond cost savings, SCED provides marginal price signals that convert system conditions into actionable financial indicators, enhancing operational awareness and supporting informed real-time decision-making. Furthermore, a sample assessment is done to explore the potential benefits of integrating hydro resources within the optimization framework, showing improved utilization patterns and lower SMP. Finally, the paper highlights the potential of centralized SCED as a scalable mechanismfor incorporating emission-sensitive objectives alongside contractual and security constraints, supporting economically efficient, secure, and environmentally conscious system operation.
Additional informations
| Publication type | Session Materials |
|---|---|
| Reference | C5_10422_2026 |
| Publication year | |
| Publisher | CIGRE |
| Country | India |
| Study committees | |
| File size | 2 MB |
| Price for non member | 30 € |
| Price for member | 30 € |
Authors
RATHER* Zakir - Indian Institute of Technology, Bombay INDIA; PANWAR Akhilesh - Indian Institute of Technology, Bombay INDIA; SOONEE Sushil - POSOCO, INDIA; DE Debasis - World Bank, INDIA; JEWALIKAR Shashank - Maharashtra State Load Despatch Centre, INDIA
Keywords
Economic Dispatch, Linear Programming, Market, MOD, Optimization, SCED, Shadow Price
