Tamil Nadu Electricity Bill Calculator
Estimate your monthly electricity bill in Tamil Nadu using current slab tariffs. Enter your units consumed to see the exact bill with a slab-wise breakdown, including the ₹30 fixed monthly charge.
₹30Bill at 100 units
₹477Bill at 300 units
₹30Fixed charge/month
5tariff slabs
Calculate Your Tamil Nadu Electricity Bill
Your bill is charged in tiers: higher usage moves into higher-rate slabs. A ₹30 fixed charge applies each month.
Tamil Nadu Electricity Slab Rates (2025-26)
| Units Consumed | Rate per unit |
|---|---|
| First 100 units | FREE |
| 101–200 units | ₹1.50/unit |
| 201–500 units | ₹3.00/unit |
| 501–1000 units | ₹4.50/unit |
| Above 1000 units | ₹6.00/unit |
| Fixed charge (per month) | ₹30 |
Tamil Nadu Electricity Bill , Sample Amounts
| Monthly Usage | Approx. Bill (incl. fixed charge) |
|---|---|
| 100 units | ₹30 |
| 300 units | ₹477 |
| 500 units | ₹1,077 |
| 1000 units | ₹3,326 |
Estimates exclude fuel-cost adjustment, electricity duty and taxes, which vary by DISCOM and billing cycle.
About Electricity Distribution in Tamil Nadu
Distribution: Tamil Nadu Generation and Distribution Corporation Ltd Regulator: TNERC (Tamil Nadu Electricity Regulatory Commission) State Capital: Chennai Fixed Charge: ₹30/month (single-phase) Fuel Charges: Fuel Adjustment Charges (FAC) per TNERC order Tariff Year: FY 2025-26
Frequently Asked Questions , Tamil Nadu Electricity Bill
What is the current electricity rate in Tamil Nadu?
The residential tariff in Tamil Nadu is set by TNERC (Tamil Nadu Electricity Regulatory Commission). The current slabs range from ₹0.00/unit (first slab) to ₹6.00/unit (highest slab). Fixed charge: ₹30/month (single-phase).
Which is the electricity board in Tamil Nadu?
The electricity distribution in Tamil Nadu is handled by <strong>Tamil Nadu Generation and Distribution Corporation Ltd</strong> under the regulatory oversight of TNERC (Tamil Nadu Electricity Regulatory Commission).
How is the electricity bill calculated in Tamil Nadu?
Your bill = Energy charges (units × applicable slab rate) + Fixed charge (₹30/month (single-phase)). Slabs are progressive , only units in each band attract that band's rate. Fuel Adjustment Charges (FAC) per TNERC order.
What is the fixed charge in Tamil Nadu electricity bill?
The fixed/demand charge is ₹30/month (single-phase). This is payable every month regardless of consumption and covers grid maintenance costs.
Are there free units in Tamil Nadu?
First 100 units FREE every month , one of India's most generous electricity subsidies. Always check with your local TANGEDCO office or the TNERC (Tamil Nadu Electricity Regulatory Commission) website for the latest subsidy schemes.
This calculator estimates Tamil Nadu residential electricity bills for FY 2025-26 using published slab tariffs. Actual bills vary with fuel-cost adjustment, electricity duty, taxes and your DISCOM and connection type. Verify with your latest bill or DISCOM. Not financial advice.