Summary
The global energy transition towards net-zero emissions presents significant challenges for power system planning, particularly for rapidly growing economies. This paper presents the application of STELLAR (Strategic Expansion for Long-Term Resource Adequacy and
Read more Read lessResilience), an indigenous capacity expansion optimization tool developed by India's Central
Electricity Authority. STELLAR employs Linear Programming optimization featuring chronological modeling, co-optimization of energy and ancillary services, unit commitment constraints, integrated demand response, and zonal transmission modeling.
The study analyzes India's power system expansion over 2025-2055 under three scenarios. Key findings reveal total installed capacity must grow from 500 GW to over 4,000 GW, with solar emerging as the dominant technology (123 GW to 1,700+ GW). Energy storage requirements expand from 6 GW to over 1,200 GW. Emission projections indicate grid emission intensity declining from 590 kg CO₂/MWh to 170-190 kg CO₂/MWh by 2050, demonstrating effective decarbonization. The non-fossil share increases from 50% to over 91% by 2050.
The results demonstrate STELLAR's capability for national-scale planning and provide valuable insights for policymakers navigating energy transition complexities.
Additional informations
| Publication type | Session Materials |
|---|---|
| Reference | C1_11012_2026 |
| Publication year | |
| Publisher | CIGRE |
| Country | India |
| Study committees | |
| File size | 1 MB |
| Price for non member | 30 € |
| Price for member | 30 € |
Authors
SWAIN* Anshuman - Central Electricity Authority, India; MENGHANI Vijay - Central Electricity Authority, India
Keywords
Capacity expansion planning, Decarbonization pathways, Electricity system modelling, Net-zero transition, Power system planning, Resource adequacy, STELLAR model, Sustainable energy, Thermal power plant emissions
