Domestic (LT-IA): Calculate Bill
Domestic (LT-IA): Estimate Units
Commercial (LT-V): Calculate Energy Charge
Estimated Domestic TNEB Bill
Bill Calculation Breakdown:
Estimate your Tamil Nadu Electricity Board (TANGEDCO) bill for Domestic (LT-IA) and Commercial connections. Calculate charges from units or estimate units from a bill amount, and download a PDF report.
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Support ToolBin.xyzTNEB Tariff Information (Illustrative for 2025 Estimates)
Below are illustrative examples of TNEB tariff components, including current eb bill slab rates. Rates and rules are subject to change; for definitive 2025 tariffs (TNEB tariff chart 2025), always refer to the latest TANGEDCO tariff orders. This TANGEDCO calculator uses these illustrative rates.
LT Tariff I-A (Domestic - Bi-Monthly - Tamil Nadu Electricity)
Fixed Charges (Example based on TNERC Tariff Order - Bi-Monthly):
- This TNEB electricity bill calculator automatically includes a common fixed charge of ₹40 (i.e., ₹20/month x 2) for domestic calculations. This rate generally applies if your Connected Load is up to 2 kW.
- If your actual Connected Load is above 2 kW, the official TNEB fixed charge is typically ₹70 per kW (i.e., ₹35/kW/month x 2). Since this tool uses the common ₹40 for simplicity, your actual bill might differ if your load is >2kW. Check your TANGEDCO bill for your specific fixed charge.
Energy Charge Slabs (Bi-Monthly - based on recent TNEB tariff charts):
| Consumption Slab (Unit-wise EB charges Tamil Nadu) | Rate (₹/Unit) |
|---|---|
| 0 - 100 Units | 0.00 (TNEB Free Units Subsidy) |
| 101 - 200 Units | 2.25 |
| 201 - 400 Units | 4.50 |
| 401 - 500 Units | 6.00 |
| 501 - 600 Units | 8.00 |
| 601 - 800 Units | 9.00 |
| 801 - 1000 Units | 10.00 |
| Above 1000 Units | 11.00 |
LT Tariff V (Commercial/General - Monthly - Simplified Energy Charge Example for TNEB)
| Consumption Slab | Rate (₹/Unit) |
|---|---|
| 0 - 100 Units | 7.50 |
| 101 - 500 Units | 8.50 |
| 501 - 1000 Units | 9.50 |
| Above 1000 Units | 10.50 |
Note: TNEB commercial bills include significant fixed/demand charges, taxes, etc., not calculated by the simplified commercial tab of this eb bill calculator tamil nadu.
How Your TNEB Bill is Calculated
Domestic (LT-IA) - Including Assumed Fixed Charges
- Assumed Fixed Charges: This TNEB domestic bill calculator applies a common fixed charge of ₹40 (bi-monthly) for simplicity in estimating your electricity consumption bill.
- Units Consumed: Your total electricity consumption in kWh for the bi-monthly period. Input this into the TNEB unit calculator.
- Subsidy: Energy charge for the first 100 units (TNEB free units 2025) is typically ₹0.00.
- Energy Slab Calculation: Remaining units (after subsidy) are charged based on progressive TNEB energy slab rates (eb bill slab rates).
- Total Energy Charges: Sum of charges from each energy slab.
- Total Estimated Bill: Total Energy Charges + Assumed Fixed Charges (₹40). This helps you understand how to calculate your TNEB bill before official TNEB online bill payment. (Taxes and other levies are not included).
Commercial (LT-V - Simplified Energy Charges Only for TNEB)
- Units Consumed: Total kWh for monthly period for your commercial electricity consumption bill.
- Energy Slab Calculation: Units charged based on simplified commercial energy slabs (as per TNEB tariff chart examples).
- Total Estimated Energy Charge: Sum of energy charges from slabs. (Official TNEB commercial bill will add significant demand charges, fixed charges, taxes, etc., which are NOT estimated by this tab).
Frequently Asked Questions - TNEB Bills & TANGEDCO Calculator
How are fixed charges handled for TNEB Domestic (LT-IA) connections in this tneb bill calculator?
This TNEB bill calculator includes a common bi-monthly fixed charge of ₹40 (₹20/month) for domestic (LT-IA) estimations. This typically applies to connections with a load up to 2 kW. Official TNEB fixed charges, as per TANGEDCO guidelines, can vary if your connected load is above 2 kW (typically ₹35/kW/month, i.e., ₹70/kW bi-monthly). This tool uses the common ₹40 for simplicity in its primary calculation for your electricity bill.
Why are fixed charges part of a TNEB bill?
Fixed charges cover TNEB's cost of maintaining the electricity infrastructure (poles, wires, etc.) to ensure a reliable power supply in Tamil Nadu, regardless of your actual energy consumption. These are standard for most electricity consumption bills.
What if my actual fixed charge is different from the ₹40 used by this eb bill calculator tamil nadu?
If your actual fixed charge (based on your connected load from your TANGEDCO bill) is different from the assumed ₹40 bi-monthly, the total bill estimate from this tool will differ from your official bill by that fixed charge difference. The energy charge estimation based on eb bill slab rates will still be accurate.
How does the 'Domestic: Bill (₹) to Units' feature work in this tneb unit calculator?
When estimating units from a total bill amount for a domestic connection, the TNEB unit calculator first subtracts the assumed common fixed charge (₹40 bi-monthly) from your target bill amount. It then tries to find the unit consumption whose energy charge (plus this ₹40 fixed charge) closely matches your original target bill amount, helping you understand your tneb unit consumption.
What if my 'Domestic: Bill (₹) to Units' input amount for TNEB bill is less than ₹40?
If the target bill amount you enter for your TNEB bill is less than or equal to the assumed ₹40 fixed charge, it implies that the energy consumption (and thus energy charge) must be zero or negligible. In such cases, the calculator will likely estimate 0 units or a very low unit value up to 100 units (which are subsidized as part of the tneb free units scheme). For example, if you consume exactly 100 free units (which have ₹0 energy charge), your bill would consist only of the fixed charge (e.g., ₹40). If your target is, say, ₹42.25, it means you've consumed the 100 free units plus 1 unit at ₹2.25, so total 101 units.
Does the 100 units free subsidy (tneb free units 2025) apply if my consumption is high, say over 500 units?
Yes, for domestic LT-IA connections in Tamil Nadu, the energy charge for the first 100 units is typically ₹0.00 (TNEB free units 2025 subsidy) regardless of your total bi-monthly consumption. However, the per-unit rates for subsequent eb bill slab rates increase significantly for higher overall consumption. This TNEB electricity bill calculator models this common subsidy approach.
What are the key components of a TNEB domestic electricity bill?
A typical TNEB domestic (LT-IA) electricity bill, which you might check via TNEB online bill payment portal or a TNEB digital bill viewer, primarily consists of:
- Fixed Charges: A bi-monthly charge based on your connected load.
- Energy Charges: Calculated based on the units (kWh) consumed, applied through a slab-based tariff system (eb bill slab rates). The first 100 units usually have a subsidized energy charge (tneb free units).
- Electricity Duty/Tax: A percentage or fixed amount levied by the state government on the energy charges or total bill. (NOT included in this calculator's estimate).
- Other Charges: Potentially meter rent (if applicable), arrears from previous bills, penalties for late payment, etc. (NOT included in this calculator's estimate). You'd see these on your official TANGEDCO bill.
Why is the Commercial (LT-V) tneb bill calculator simplified to 'Energy Charge Only'?
TNEB Commercial (LT-V) tariffs in Tamil Nadu are significantly more complex than domestic ones. They usually involve:
- Higher Fixed Charges.
- Demand Charges based on sanctioned/recorded maximum demand (kW/kVA).
- Power Factor penalties or incentives.
- Potentially Time-of-Day (ToD) tariffs where unit rates vary during peak, off-peak, and normal hours.
- Higher electricity duty/taxes.