POSOCO was formed in ___________to handle the power management function of PGCIL.

Question

Examoogle · Accepted Answer

March-2009

Explanation: POSOCO (Power System Operation Corporation Limited), now known as Grid Controller of India Limited, was incorporated in March 2009. It was established as a wholly-owned subsidiary of PGCIL to effectively handle the power management functions of India's national and regional grids.

Working Principle: The restructuring was driven by the need for independent system operation. By separating the transmission owning entity (PGCIL) from the system operating entity (POSOCO), the Ministry of Power ensured that the Load Despatch Centres (LDCs) operate neutrally, ensuring non-discriminatory access to the grid for all market participants.

Key Formulas: $Grid\ Reliability = \frac{1}{Loss\ of\ Load\ Probability}$; $System\ Security = f(V, \delta, P, Q)$

Key Points: POSOCO handles the operation of National Load Despatch Centre (NLDC) and Regional Load Despatch Centres (RLDCs).; It was created to ensure open access and non-discriminatory grid operations.; In 2022, POSOCO was officially renamed to Grid Controller of India Limited to better reflect its function.; It is responsible for the overall monitoring of the grid and management of power transactions.

Advantages: Neutral and transparent grid operation; Improved grid security and stability; Effective implementation of electricity market mechanisms

Applications: Real-time grid management; Power system contingency analysis; Inter-state transmission system (ISTS) scheduling

Additional Info: PGCIL (Power Grid Corporation of India Limited) acts as the Central Transmission Utility (CTU).. March 2009 represents the incorporation date under the Companies Act, 1956.. April 2009 (Option B) is often confused as the date when it started formal operations independently.

Answer: C is correct — POSOCO was incorporated in March 2009 as a subsidiary of PGCIL to function as the independent system operator for the Indian power grid.

Exam Tip: Always remember that POSOCO handles the 'Operational' side (Load Despatch), whereas PGCIL handles the 'Asset' side (Transmission lines/substations).

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