Calculate your provisional electricity bill for any of Tamil Nadu's 1 distribution company — TNPDCL (TANGEDCO) — with a full slab-wise breakdown for 2025-26.
Slab rates, fixed charge, fuel surcharge and duty for 2025-26, applied to your own units. Nothing you enter leaves your browser.
Domestic supply. The bracket in each option is the eligibility limit — pick the one your connection actually falls under, because the rates differ sharply between them. For commercial supply, time-of-day, solar export or arrears, the full calculator carries every field.
| Supply type | Energy charge | Fixed charge | Duty & other |
|---|---|---|---|
| LT-IA (Domestic) |
|
₹0/mo | — |
ℹ️ TNPDCL bills bi-monthly; rates here are the order's monthly-equivalent bands. Free units (GoTN G.O.(Ms) No.50, 10-05-2026): 200 units free per 2-month cycle if you bill ≤500 units bi-monthly, otherwise 100 units per cycle — tick the Government Subsidy box to apply it. Fixed charge is Nil for this category.
| Supply type | Energy charge | Fixed charge | Duty & other |
|---|---|---|---|
| LT-V – Above 50 units/month (100 bi-monthly) |
|
₹110/kW/mo |
|
| LT-V – Up to 50 units/month (100 bi-monthly) |
|
₹110/kW/mo |
|
Who each rate applies to
Typical domestic examples for a 2 kW LT-IA (Domestic) connection, computed with the same engine as the calculator. Use them as a quick sanity check; your actual bill changes with sub-category, arrears, FPPA, duty and billing-period length.
| Monthly consumption | Estimated bill |
|---|---|
| 200 units | ₹990 |
| 300 units | ₹1,763 |
| 500 units | ₹3,863 |
| 750 units | ₹6,900 |
Select your distribution company to see its 2025-26 tariff schedule, service area and an indicative monthly bill.
Complain in this order and keep the complaint number at every step. Skipping a step is the commonest reason a genuine billing complaint is returned unheard.
| Step | Where it goes | What you need |
|---|---|---|
| 1. DISCOM complaint desk | TNPDCL (TANGEDCO), or the 24×7 helpline 1912 | Consumer number, bill number, the one disputed line, and a meter photo |
| 2. Consumer Grievance Redressal Forum (CGRF) | Your DISCOM's forum, constituted under TNERC regulations | The first complaint number, and what the DISCOM did or failed to do about it |
| 3. Electricity Ombudsman | The Ombudsman appointed by TNERC | The CGRF order, or proof the forum missed its deadline |
Two deadlines worth knowing. Under the central Electricity Rights of Consumers Rules a grievance should normally be decided within 30 days and in any case within 45. And if the paper you received is an assessment under Section 126 for unauthorised use rather than an ordinary bill, it does not go to the CGRF at all — it is appealed to the Appellate Authority under Section 127, usually within 30 days.
Read the full complaint playbook, with wording you can copy →
Provisional estimates based on publicly available Tamil Nadu tariff orders (source: www.tnerc.tn.gov.in/Orders/files/TO-Order%20No6300620252131.pdf). Verify against your official bill — rates vary by sub-category, slab and city.