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GRIDCO Ltd. vs. Western Electricity Supply Company of Orissa Ltd. and Ors.

Civil Appeal · 2023 INSC 872Decided 5 Oct 2023
Civil Appeal No. 414 of 2007
Sanjay Kishan Kaul · Abhay S. Oka

Background

After the Electricity Act, 2003 reorganised Orissa's power sector, GRIDCO's transmission business moved to a new entity (OPTCL) while GRIDCO continued as the bulk-supply/distribution licensee, alongside four regional distribution companies (WESCO, NESCO, SESCO and CESCO). Over multiple years, the state Regulatory Commission passed a series of tariff orders (fixing the annual revenue requirement, bulk supply tariff, transmission tariff and retail supply tariff), and both the Commission, GRIDCO, OPTCL and the DISCOMS repeatedly cross-appealed these orders to the Appellate Tribunal for Electricity and then to the Supreme Court, spanning financial years from 2006-2007 up to 2014-2015. By the time the case reached the Supreme Court, 17 separate but interlinked appeals, filed at different times by different parties challenging different Tribunal orders, needed to be resolved together.

Decision Breakdown

The Supreme Court first clarified that its jurisdiction under Section 125 of the Electricity Act is narrow, limited to substantial questions of law (as under Section 100 of the CPC), so it would not reopen concurrent factual findings of the expert Commission and the Appellate Tribunal, both bodies staffed with technical and judicial expertise, and treated tariff-fixation under Section 62 as a quasi-judicial function. On the substantive disputes, the Court held that only the interest component of GRIDCO's loans (not the principal repayment) could be passed through to consumers via the tariff, that GRIDCO's earnings from exporting surplus power outside the state must be counted as its revenue rather than excluded, and that adjustments for increased power purchase quantities (Simultaneous Maximum Demand) had to be properly factored into tariff calculations. It modified the orders in two of the appeals accordingly and dismissed the remaining appeals, while directing the Commission to implement all the Tribunal's orders as now modified and to pass fresh consequential orders, clarifying that a later cancellation of the DISCOMS' licenses would not affect the tariff fixation for these earlier years.

Lesson Learnt

Courts hearing statutory appeals from specialised regulatory tribunals (like electricity tariff bodies) generally defer to their factual and technical findings and intervene only on genuine questions of law; and in cost pass-through arrangements, a lender's interest cost can be recovered from consumers but the underlying loan principal itself generally cannot be treated as a pass-through expense.

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

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