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GROWTHIFYE ONE-PAGER·MERC · Maharashtra·tariff order·Case 225 of 2022·Order dated 2023-03-31

MERC approved TPC-D's ARR true-up for FY19-20 to FY21-22, provisional true-up for FY22-23, and revised ARR & tariffs for FY23-24 and FY24-25

Case of The Tata Power Company Ltd. (Distribution) for approval of True-up of Aggregate Revenue Requirement (ARR) for FY 2019-20, FY 2021-22 and FY 2021-22, Provisional Truing-up of ARR for FY 2022-23, and approval of Revised ARR and Tariff for FY 2023-24 and FY 2024-25

Background · what was sought

TPC-D filed a petition under Regulation 5 of the MERC MYT Regulations, 2019 seeking approval of ARR true-up for FY2019-20, FY2020-21 and FY2021-22, provisional true-up of ARR for FY2022-23, and revised ARR and tariff for FY2023-24 and FY2024-25. The original petition was filed on 30 Nov 2022 and a revised petition on 18 Jan 2023. MERC admitted the petition, conducted a public consultation process including a public hearing, and issued this order after considering stakeholder objections and TPC-D's responses on power purchase cost, wheeling charges/losses, cross-subsidy surcharge, categorisation, kVAh billing, metering, contingency reserve and other issues.

What the Commission decided
  • Approved truing-up of ARR for FY2019-20, FY2020-21 and FY2021-22 as filed after scrutiny
  • Approved provisional truing-up of ARR for FY2022-23
  • Approved Revised ARR and category-wise Tariff Schedule for FY2023-24 and FY2024-25 (effective 1 April 2023 and 1 April 2024 respectively)
  • Approved fixed/demand and energy charge escalation across EHT/HT categories (e.g., HT II EHV/HV energy charge rising from Rs.7.90/kVAh in FY23-24 to Rs.9.00/kVAh in FY24-25)
  • Approved change in HT Billing Demand computation - 70% of Contract Demand for FY2023-24, rising to 75% for FY2024-25
  • Approved miscellaneous charges/incentives - Power Factor incentive/penalty slabs, Load Factor incentive (up to 15% rebate), prompt payment discount (1%), digital payment discount (0.25%), e-bill discount (Rs.10/bill), delayed payment charges (1.25% for first month; 12%/15% p.a. thereafter)
Way forward agreed by the Commission
  1. FAC/Z-factor charge to be applied monthly and published on TPC-D's website for pass-through of fuel/power purchase price variations
  2. Tariffs as approved to be effective from 1 April 2023 (FY23-24) and 1 April 2024 (FY24-25) per the schedule
  3. HT Billing Demand methodology transition to 75% of Contract Demand to apply from FY2024-25
  4. Consumers to avail digital payment, e-bill and prepaid metering discounts as per approved rebate structure
  5. TPC-D to continue publishing category-wise ZFAC and Electricity Duty details in consumer bills
  6. Load Factor and Power Factor incentives/penalties to be applied on ongoing bills subject to no arrears and timely payment
What it means for C&I buyers, OA users & developers
  • • C&I/HT consumers face a step-up in both wheeling and energy charges from FY23-24 to FY24-25, raising landed power cost for EHT/HT industrial, commercial and EV-charging categories
  • • Tightening of HT Billing Demand norms (70%→75% of Contract Demand) increases fixed-cost exposure for consumers with fluctuating loads, relevant for open-access and captcaptive users
  • • TOD tariff structure (peak surcharge 1800-2200 hrs, off-peak rebate 2200-0600 hrs) continues to reward load-shifting, batteries/storage and solar-plus-storage configurations
  • • EV charging stations get a distinct HT/EHT VI tariff category with separate (lower) demand charges, useful for developers planning charging infrastructure
Growthifye take

This order confirms a steady, incremental tariff hike path for Tata Power Mumbai's HT/EHT consumers into FY24-25, with wheeling and energy charges up ~10-15% year-on-year and billing-demand norms tightening. C&I buyers and OA/RE developers should re-model landed costs using the FY24-25 rates, exploit TOD off-peak rebates for storage-backed strategies, and review contract demand sizing given the 75% billing-demand shift to avoid capacity-charge leakage.

Growthifye does not take responsibility for the accuracy of this information. Values are compiled from tariff orders published on the websites of State Electricity Regulatory Commissions and distribution licensees (plus CEA / MoP / Grid-India), parsed automatically and shown with their source. Always verify against the signed order before any commercial decision. This one-pager is a Vidura-assisted summary of the official order; the signed order prevails.

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