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Maharashtra State Electricity Distribution Company Limited vs Adani Power Maharashtra Limited

Civil Appeal · 2023 INSC 400Decided 20 Apr 2023
Civil Appeal Nos. 677-678 of 2021
B.R. Gavai · Vikram Nath

Background

MSEDCL and Adani Power Maharashtra Limited (APML) had four long-term Power Purchase Agreements. APML sought "Change in Law" tariff compensation from the Maharashtra Electricity Regulatory Commission (MERC) first because of the New Coal Distribution Policy 2013, and later because of the Central Government's 2017 SHAKTI Policy for coal allocation, which affected the availability and cost of domestic coal for APML's power plants after March 2017. MERC granted relief; on cross-appeals, the Appellate Tribunal for Electricity (APTEL) largely ruled in APML's favour on the computation methodology (rejecting a 25% cap on the domestic coal shortfall considered, adjusting the heat-rate/GCV computation basis, rejecting an advance-notice requirement for using alternate coal, and upholding APML's entitlement to "Carrying Cost": essentially interest-like compensation for the period between the change in law and the regulator's approval of relief). MSEDCL appealed to the Supreme Court.

Decision Breakdown

The Supreme Court held that the introduction of the SHAKTI Policy did indeed constitute a "Change in Law" event under the PPAs, rejecting MSEDCL's argument that it merely restored the earlier 2007 coal policy position. It agreed with APTEL that capping the domestic coal shortfall considered for compensation at 25% was inconsistent with the basic principle of restitution underlying Change in Law clauses: full restoration to the economic position but for the change. On Carrying Cost, the Court relied on its own earlier ruling in Uttar Haryana Bijli Vitran Nigam Ltd. v. Adani Power Limited, which had already upheld the principle that a generator is entitled to compensation for the period between the change-in-law event and the regulator's eventual approval, following the restitutionary principle from Indian Council for Enviro-Legal Action v. Union of India. Reiterating the settled principle (recently affirmed in the Constitution Bench ruling in Vivek Narayan Sharma) that courts should be slow to interfere with findings of expert regulatory bodies like APTEL unless they ignore mandatory statutory provisions or are based on extraneous or arbitrary considerations, the Court found no such infirmity and dismissed MSEDCL's appeals.

Lesson Learnt

Courts give considerable deference to specialist regulatory tribunals like APTEL on technical questions within their expertise (like coal-cost computation methodology), interfering only where the tribunal ignored the law or acted arbitrarily, and a party affected by a "Change in Law" event is entitled not just to the direct cost difference but to being fully restored to its original economic position, including compensation for the delay between the event and the regulator's decision.

Official source (sci.gov.in)View Judgment (PDF)

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