500 units electricity bill in Tamil Nadu (TNEB bill)
A home in Tamil Nadu that uses 500 units in a 2-month bill pays about ₹1,570 on today’s TNERC tariff (order of 30 June 2025). That is ₹3.14 a unit, with all the charges our calculator adds.
- ₹1,570 a bill
- ₹3.14 a unit
- TNPDCL
How the 500-unit bill adds up
| Slab (units) | Units × rate | Amount |
|---|---|---|
| 1–200 | 200 × ₹0.00 | ₹0.00 |
| 201–400 | 200 × ₹4.70 | ₹940.00 |
| 401–500 | 100 × ₹6.30 | ₹630.00 |
| Energy charge | ₹1,570.00 | |
| Bill | ₹1,570.00 | |
Urban home, default options of the Tamil Nadu calculator, 2-month bill. Source: TNERC Suo-motu Order No. 6 of 2025 - Determination of Tariff for Distribution for FY 2025-26 (CPI-linked revision under .
What changes the bill
- Unit 501 adds about ₹478 on its own: above 500 units the bill moves to higher rates. Stay at 500 units or below if you can.
- At 400 units the bill is ₹940; at 600 units it is ₹2,880.
Where 500 units sit in the Tamil Nadu slabs
The 500 units cross 3 slabs. The last 100 units are in the 401–500 slab, at ₹6.30 a unit. Each extra unit in this slab costs that much.
The first 200 units cost nothing.
500 units in a 2-month bill is about 8.3 units a day, or 250 units a month. The bill is about ₹26 a day and ₹785 a month.
What this figure includes
- Rates are what the consumer pays after Government subsidy (first 200 units free up to 500 units; 100 units free above).
- Electricity tax not included: current notified rate not yet confirmed.
Other bills in Tamil Nadu
500 units in nearby states: Karnataka, Kerala, Telangana, Andhra Pradesh, Puducherry, Lakshadweep.
Questions
How much is the electricity bill for 500 units in Tamil Nadu?
About ₹1,570 for 500 units in a 2-month bill on the Tamil Nadu tariff, with the calculator’s default options. Your load, phase and any monthly fuel charge can change it.
What is the per unit rate for 500 units in Tamil Nadu?
The average is ₹3.14 a unit, with all charges. The last units are charged at ₹6.30 each in the tariff.
How many units a day is 500 units in a 2-month bill?
About 8.3 units a day, or 250 units a month. One unit is one kWh: a 1,000-watt load for one hour.
How do I lower a 500-unit bill?
Stay at 500 units or below: the bill jumps above that. Use the appliance calculator to find what uses the most power.