TNEB Bill for 200 Units: How Much Will You Pay in Tamil Nadu?
Direct Answer:
A TNEB electricity bill for exactly 200 units in Tamil Nadu costs ₹0.00. Under the active domestic (LT Tariff 1A) schedule, residential households whose total bi-monthly consumption does not exceed 500 units receive the first 200 units completely free of charge. Because all 200 units fall within the subsidized zero-cost slab and domestic consumers pay zero fixed charges, your net payable amount is nil.
Why Is the Bill for 200 Units Exactly ₹0?
In Tamil Nadu, TNPDCL assesses domestic power every two months (bi-monthly cycle). The tariff order published by the Tamil Nadu Electricity Regulatory Commission (TNERC) includes an enhanced subsidy structure for low-to-moderate domestic consumers who use up to 500 units in a 60-day billing cycle:
- 0 to 200 units: ₹0.00 per unit (100% state government subsidy).
- 201 to 400 units: ₹4.70 per unit.
- 401 to 500 units: ₹6.30 per unit.
- Fixed charges & electricity duty: ₹0 for residential LT-1A connections.
When your meter records exactly 200 units across the 60-day period, all 200 units are absorbed by the first slab. There are no remaining units to bill at ₹4.70, resulting in a total energy charge of zero.
Slab breakdown for 200 Units (Bi-Monthly)
This breakdown is programmatically generated from the live calculation engine modeled on published tariff schedules:
| Slab Range | Units Billed | Rate per Unit (₹) | Energy Charge (₹) |
|---|---|---|---|
| 0 – 200 units (Subsidized Allowance) | 200 | ₹0.00 | ₹0.00 |
| 201 – 400 units | 0 | ₹4.70 | ₹0.00 |
| Fixed Charges (LT-1A Domestic) | — | — | ₹0.00 |
| Electricity Duty | — | — | ₹0.00 |
| Net Payable Amount | — | ₹0.00 |
What If You Use Slightly More? Comparing 200, 250, and 300 Units
Meter readings often fluctuate depending on fan, refrigerator, or lighting usage. If your bi-monthly total exceeds 200 units, your bill will not jump drastically because the rate increases progressively. Here is how your bill changes when you use 200, 250, or 300 units:
| Total Bi-Monthly Units | Free Slab (0–200u) | Paid Slab (201–400u @ ₹4.70) | Total Bi-Monthly Bill | Equivalent Monthly Cost |
|---|---|---|---|---|
| 200 units | 200 units (₹0) | 0 units | ₹0 | ₹0 |
| 250 units | 200 units (₹0) | 50 units (₹235.00) | ₹235 | ₹118 |
| 300 units | 200 units (₹0) | 100 units (₹470.00) | ₹470 | ₹235 |
Note: Calculations are generated via the live Tamil Nadu tariff engine. All figures represent standard residential LT-1A rates without commercial or temporary tariff surcharges.
Important Warning: The 500-Unit Cliff
While increasing consumption from 200 to 300 units only adds ₹470 over two months, you must ensure your household does not cross 500 units. In Tamil Nadu, exceeding 500 units causes you to lose 100 units of your free allowance immediately, triggering an abrupt jump of several hundred rupees on your bill.
Read our detailed breakdown: Tamil Nadu's 500-Unit Electricity Rule & Subsidy Cliff Explained.
Calculate Any Consumption Figure
Need to calculate your estimated bill for a different meter reading, or check the impact of adding a water heater or air conditioner? Use our state calculator: