TNEB / TANGEDCO Electricity Bill Calculator
Tamil Nadu Generation and Distribution Corporation. Accurate slab-wise bill estimate with FAC, duty and fixed charges — for domestic, commercial and industrial consumers.
Calculate Your Electricity Bill
Pick your state, DISCOM and enter units — we do the math exactly the way your DISCOM does.
Tip: Your bill shows this as "units consumed" or "kWh".
Usually 1–5 kW for homes, 5–20 kW for shops.
- Bi-monthly billing cycle common for domestic.
- First 100 units free per bi-monthly cycle for eligible domestic.
TNEB / TANGEDCO Domestic Slab Rates
Effective 2025-07-01. Energy charge structure.
| Slab (units / month) | Energy rate (₹/unit) |
|---|---|
| 1 – 100 | ₹0.00 |
| 101 – 200 | ₹2.35 |
| 201 – 400 | ₹4.70 |
| 401 – 500 | ₹6.30 |
| Above 500 | ₹8.40 |
- Fixed charges
- Slab-based
- FAC / FPPCA
- —
- Electricity duty
- 6%
- Telescopic
- Yes
Commercial (LT) Rates
| Slab (units / month) | Energy rate (₹/unit) |
|---|---|
| Above 0 | ₹8.95 |
- Fixed charges
- ₹80/kW/mo
- FAC / FPPCA
- —
- Electricity duty
- 6%
- Telescopic
- No
Industrial (LT) Rates
| Slab (units / month) | Energy rate (₹/unit) |
|---|---|
| Above 0 | ₹7.50 |
- Fixed charges
- ₹70/kW/mo
- FAC / FPPCA
- —
- Electricity duty
- 6%
- Telescopic
- No
Sample TNEB / TANGEDCO domestic bills (2026)
Based on a 3 kW sanctioned-load domestic connection. Excludes subsidy. Use the calculator above for exact numbers with your own load and subsidy.
Bill for 100 units
₹80
avg ₹0.80/unit
Bill for 150 units
₹204
avg ₹1.36/unit
Bill for 200 units
₹329
avg ₹1.64/unit
Bill for 250 units
₹578
avg ₹2.31/unit
Bill for 300 units
₹827
avg ₹2.76/unit
Bill for 400 units
₹1,325
avg ₹3.31/unit
Bill for 500 units
₹1,993
avg ₹3.99/unit
Bill for 750 units
₹4,219
avg ₹5.63/unit
Bill for 1000 units
₹6,445
avg ₹6.44/unit
About TNEB / TANGEDCO
Tamil Nadu Generation and Distribution Corporation is the distribution licensee serving Tamil Nadu — official site linked below. Consumers are billed monthly (bi-monthly in some categories) based on metered units, applicable slab rates, and fixed charges that scale with your sanctioned load.
This page stays synced with the latest tariff order from the state regulator. Every quarter we verify rates against the published order and update accordingly. Last verified: 2026-04-22.
Official website: www.tnebnet.org
TNEB / TANGEDCO — Common Questions
Answers to the most common electricity bill questions in India.