News: The State-of-the-art, Totally indigenously developed Resource Adequacy model (STELLAR) has recently been launched by the Central Electricity Authority (CEA) on 11 April 2025.
About STELLAR Model
- It is a next-gen software tool for integrated planning of power generation, transmission, storage, and demand response.
- It is developed in line with Resource Adequacy Guidelines issued by the Ministry of Power in June 2023.
- Launched by: Central Electricity Authority
- Collaborating Partners: The Lantau Group (TLG) and Asian Development Bank (ADB) under its Technical Assistance Programme
- This software will be provided free of cost to all State Distribution Companies (Discoms) and Load Despatch Centres (LDCs).
Key Features of STELLAR
- Chronological Power System Modelling– Simulates real-time grid operations, considering load flow, ramp rates, and unit-level constraints.
- Integrated Resource Planning– Simultaneously models generation, transmission, storage, and demand-side expansion up to FY 2034–35.
- Endogenous Demand Response– Includes consumer flexibility in electricity usage to optimize load and system cost.
- Ancillary Services Optimization– Plans for essential grid services like frequency control and reserves to maintain stability.
Benefits:
- Ensures optimal resource adequacy – Avoiding both power shortages and overcapacity.
- Supports zero load shedding and removes the need for stressed capacity.
- Promotes least-cost planning for efficient and affordable operations.
- Identifies optimal storage size and location, crucial for renewable energy integration.
