CERC Initiates Phased Market Coupling; IEX Assessing Impact on Day-Ahead Market
This regulatory development proposes a fundamental change to the Day-Ahead Market mechanism, a core business segment for IEX, and introduces a new operational model where power exchanges will rotate as Market Coupling Operators. This directly affects IEX's market structure and potential competitive landscape.
The announcement describes a significant regulatory change aimed at increasing overall market welfare, as evidenced by shadow pilot results. However, the company is still assessing the detailed impact on its business, indicating uncertainty regarding the specific implications for IEX's operations and market position.
* The Central Electricity Regulatory Commission (CERC) has issued a Suo-Moto Order dated July 23, 2025, to initiate the process for implementing market coupling in a phased manner. * This includes the implementation of coupling for the Day-Ahead Market (DAM) of power exchanges in a round-robin mode by January 2026. * Under this mode, power exchanges, including IEX, may act as the Market Coupling Operator (MCO) on a rotational basis, with Grid-India serving as the fourth MCO for backup and audit purposes. * CERC has also directed further exploration of market coupling in other segments like the Real-Time Market (RTM) and Term-Ahead Market (TAM) through shadow pilots and regulatory consultations. * A shadow pilot run for DAM coupling from December 2024 to March 2025 showed an overall welfare increase of ₹38 crore (0.3%) and volume cleared increase of 52 MU (0.2%). * For RTM coupling, the shadow pilot indicated an overall welfare increase of ₹72 lakh (0.01%) and volume cleared increase of 1.54 MU (0.01%). * Indian Energy Exchange Limited (IEX) is currently undertaking a detailed impact assessment of the implications of this regulatory change and will keep stakeholders informed of further developments.
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Indian Energy Exchange Limited filed this with the NSE as a statutory disclosure, categorised under regulatory filings. It is a primary document, not a recommendation, and the desk marks it high impact, which is the band that most often changes something.
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