STELLAR

The STELLAR Model, developed by the Central Electricity Authority, helps Indian states and discoms plan reliable power supply. It integrates generation, transmission, storage, and demand response, ensuring resource adequacy. User-friendly and free, it supports rule compliance and avoids power shortages, promoting efficient, future-ready electricity planning across India.

Last Updated on 17th April, 2025
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The Central Electricity Authority has launched the State of art totally Indigenously developed Resource adequacy model (STELLAR).

What is the STELLAR Model?

It is a special tool designed to help Indian states and electricity distribution companies (discoms) plan how to meet future electricity needs. It ensures there will always be enough power available when needed. This model follows guidelines issued by the Ministry of Power in June 2023.

It ensures that electricity generation, transmission, and storage are planned properly so the country can meet growing electricity demand without shortages or blackouts. It also helps states follow rules set by the government to maintain reliable power supply.

"Resource adequacy" means having enough resources—like power plants, transmission lines, and energy storage—to meet electricity demand at all times. The STELLAR Model helps states ensure they have enough resources to avoid power shortages

Key features of the STELLAR Model 

  • Integrated Planning: It plans for power generation, transmission, and storage all at the same time. It also includes demand response, which means adjusting electricity use during peak times.
  • Compliance with Rules: It helps states follow the Ministry of Power’s rules, which change every year based on new requirements.
  • User-Friendly Design: The Central Electricity Authority (CEA) developed this tool in India. It is easy to use, transparent, and updated regularly based on feedback from users.
  • Free Distribution: The software is provided free to all states and discoms, making it accessible to everyone.
  • Collaboration: The Lantau Group (TLG) and the Asian Development Bank (ADB) worked together to develop this tool under a technical assistance program.

How does the STELLAR Model work?

It works by combining data about electricity generation, transmission, and storage. It analyzes this data to create plans that ensure enough power is available in the future. It also considers how people use electricity and adjusts plans to reduce demand during peak hours.

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