(THE GIST OF PIB) STELLAR Model

(APRIL-2025)

On April 11, 2025, the Central Electricity Authority (CEA) launched the STELLAR Model—an advanced, indigenously developed software tool for integrated generation, transmission, and storage expansion planning with demand response.

The STELLAR Model (State-of-the-art, Totally indigenously developed Resource adequacy model) is designed to help Indian states and discoms prepare comprehensive resource adequacy plans, in line with the Ministry of Power’s guidelines issued in June 2023.
It is a vital tool for ensuring that the power sector can reliably meet future electricity demand through optimal planning of generation, transmission, and storage resources.

Integrated Planning: The model enables simultaneous planning for generation, transmission, and storage expansion, incorporating demand response as a key component.
Resource Adequacy Compliance: Assists states in meeting the dynamic, annually revised resource adequacy requirements mandated by the Ministry of Power.
User-Friendly and Transparent: Developed entirely in India under CEA’s guidance, the tool is transparent and will be regularly updated based on user feedback.
Free Distribution: The software will be provided at no cost to all states and discoms, promoting uniformity and ease of use across the country.
Collaboration: Developed in partnership with The Lantau Group (TLG) and the Asian Development Bank (ADB) under a technical assistance program.