Electricity Law — Power Purchase Agreement (PPA) — Commercial Operation Date (COD) — Firm Power vs. Infirm Power — Payment of Fixed Charges — Applicability of Regulations — Dispute regarding whether power supplied by generating company (respondent) to distribution licensee (appellant) during the relevant period (29.10.2005 to 30.06.2006) should be treated as “firm power” entitling the respondent to fixed charges, or “infirm power” entitling only variable charges — TNERC and APTEL concurrently found in favour of the generating company, holding the power supply was firm power — Supreme Court upheld the finding that continuous power supply from the gas turbine open cycle during the relevant period was “firm power” as per electricity regulations, notwithstanding the PPA’s definition of COD tied to the combined cycle project completion. (Paras 2, 29, 31, 37)
2025 INSC 1439 SUPREME COURT OF INDIA DIVISION BENCH TAMIL NADU GENERATION AND DISTRIBUTION CORPORATION LTD. Vs. M/S PENNA ELECTRICITY LIMITED ( Before : J. B. Pardiwala and K. V.…








