What is TNEB per unit rate in 2026?

For domestic consumers: ₹0 for first 200 units (if ≤500 total), ₹4.70 for 201-400 units, ₹6.30 for 401-500, ₹8.40 for 501-600, ₹9.45 for 601-800, ₹10.50 for 801-1000, ₹11.55 above 1000 units (bimonthly).

How many free units in Tamil Nadu 2026?

200 units free per bimonthly cycle for consumers using ≤500 units, effective May 10, 2026.

What is TNEB commercial rate per unit?

₹9.50 per unit for LT commercial consumers with fixed charges of ₹100-550/kW/month based on connected load.

⚡ TNEB Tariff 2026 — Complete Electricity Rates

All TANGEDCO tariff slabs for FY 2025-26 with May 2026 revision. Official rates from TNERC tariff order.

Updated: May 2026 Revision Applied

Domestic Tariff (LA1A) — Residential

Bimonthly billing. Two-tier system based on total consumption.

If bimonthly consumption ≤ 500 units:

Slab	Units	Rate (₹/unit)	Note
1	0 - 200	₹0 (FREE)	May 2026: Increased from 100 to 200 free
2	201 - 400	₹4.70
3	401 - 500	₹6.30

If bimonthly consumption > 500 units:

Slab	Units	Rate (₹/unit)
1	0 - 100	₹0 (Free — subsidy applied separately)
2	101 - 400	₹4.70
3	401 - 500	₹6.30
4	501 - 600	₹8.40
5	601 - 800	₹9.45
6	801 - 1000	₹10.50
7	Above 1000	₹11.55

Fixed charges: ₹51/kW/month. Govt subsidy: ₹3.37/unit for first 200 units (applied as deduction).

Commercial Tariff (LT-V)

Consumption	Rate (₹/unit)	Fixed Charges
0-50 kWh	₹6.00	₹100/kW/month
All units (above 50kWh)	₹9.50	₹100-550/kW/month (load-based)

Industrial Tariff (LT-IIIB)

Load	Rate (₹/unit)	Fixed Charges
All	₹7.50	₹75-550/kW/month (load-based)

Cottage & Micro Industries (LT-IIIA)

Units	Rate (₹/unit)	Fixed
0-250	₹4.50	₹70/kW/month
Above 250	₹6.50	₹70/kW/month

Agricultural Tariff (LT-IV)

Type	Rate	Fixed
Agricultural pump sets	FREE (Govt. bears cost)	₹3,550/HP/annum

Other Tariffs

Category	Code	Rate (₹/unit)
Govt. Educational Institutions	LT-IIB(1)	₹8.00
Private Educational Institutions	LT-IIB(2)	₹8.50
Places of Public Worship (≤60 units)	LT-IIC	₹5.75
Places of Public Worship (>60 units)	LT-IIC	₹7.00
Public Lighting & Water Supply	LT-IIA	₹8.00
Temporary Supply / Construction	LT-VI	₹12.00
HT Industrial	HT-I	₹6.75
HT Commercial	HT-III	₹8.50

May 2026 Revision — What Changed?

Free units increased: From 100 to 200 bimonthly for consumers using ≤500 units
No rate hike: Per-unit rates remain unchanged from Sep 2022 order
Effective: 10 May 2026 onwards
Benefit: ~₹235-674 savings per bimonthly cycle

How to Read Your TNEB Bill

Your bimonthly TNEB bill has these components:

Component	What it means
Energy Charges	Units × slab rate (calculated at full rate)
Fixed Charges	Sanctioned load × ₹51/kW × 2 months
Govt. Subsidy	Deduction for free units (negative amount)
Electricity Duty	5% tax (if applicable)
Net Payable	Energy + Fixed - Subsidy + Duty

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⚠️ Disclaimer: Tariff rates shown are based on TNERC T.O.No.6 of 2025 and verified against real bills. Rates may be revised periodically. Check tnebnet.org or your local TNEB office for the latest applicable rates.