TNPDCL (formerly TANGEDCO/TNEB) Electricity Bill Calculator
Tamil Nadu Power Distribution Corporation Limited (TNPDCL, formerly TANGEDCO/TNEB)
Calculate Tamil Nadu TNPDCL bi-monthly electricity bill online based on published tariff schedules with the 200/100 free units subsidy; verify against your bill. Free, independent electricity bill calculator based on published FY 2026-27 State Electricity Regulatory Commission (SERC) tariff schedules for Tamil Nadu.
Subsidy scheme (effective 10 May 2026, per published reports; primary documents not yet reviewed; G.O. (Ms) No. 50 dated 10 May 2026, TNERC Order No. 5 of 2026 (date not yet confirmed)): households consuming UP TO 500 units bi-monthly receive the first 200 units FREE. For consumption 201–400 units: ₹4.70/unit; 401–500 units: ₹6.30/unit. Households consuming MORE THAN 500 units bi-monthly revert to the older structure where only the first 100 units are free. Exact slab rates above 500 units require verification from TNPDCL.
Electricity Cost & Tariff Structure for TNPDCL (formerly TANGEDCO/TNEB) Consumers
For consumers under TNPDCL (formerly TANGEDCO/TNEB) (Tamil Nadu Power Distribution Corporation Limited (TNPDCL, formerly TANGEDCO/TNEB)) in Tamil Nadu, household electricity is billed on a bi-monthly cadence. Energy charges follow a progressive telescopic slab system starting at ₹0.00/unit for basic consumption and rising to ₹6.30/unit in upper tiers. Qualifying domestic connections receive the first 200 units subsidized or free per billing period under state policy. Total bills include connected load capacity fees modeled at ₹0/kW/month, plus 0% state electricity duty.
Net Bill = (Tiered Slab Energy Charges) + (Fixed Load Fee @ ₹0/kW) + (Electricity Duty @ 0%) – (Applicable State Subsidy)
Calculate your TNPDCL (formerly TANGEDCO/TNEB) electricity bill online using the primary TNPDCL (formerly TANGEDCO/TNEB) bill calculator with published FY 2026-27 SERC slabs.
Calculate Your TNPDCL (formerly TANGEDCO/TNEB) Electricity Bill
Enter your total units consumed or switch to meter reading mode to compute your bill. The calculator automatically applies TNPDCL (formerly TANGEDCO/TNEB)'s published telescopic slab tiers, connected load capacity fees, statutory duty rates, and government subsidy waivers.
Electricity Bill Calculator
Accurate billing computation applying state regulatory tariff orders, progressive slab tiers, demand capacity, and statutory duties.
Energy Cost Flow
Sequential billing breakdown from metered draw to billed total
| Slab Range | Units | Rate | Amount |
|---|---|---|---|
| 0 – 200 units | 200 | ₹0.00 | ₹0.00 |
| 201 – 400 units | 150 | ₹4.70 | ₹705.00 |
How a TNPDCL (formerly TANGEDCO/TNEB) Electricity Bill is Built
Step-by-step visual progression showing how a typical 250 units domestic draw for a 1 kW connection translates into the final payable bill on the bi-monthly cycle.
TNPDCL (formerly TANGEDCO/TNEB) Bill Formation Breakdown (250 Units)
Sequential allocation through tiered energy slabs, capacity demand fees, and statutory duty.
TNPDCL (formerly TANGEDCO/TNEB) Domestic Slab Ladder
Progressive tariff tiers applied sequentially as consumption grows.
250 Units Component Allocation
Modeled itemization for a standard 1 kW domestic connection (bi-monthly cycle).
Final bill is rounded to the nearest rupee for display. Line items may not sum exactly due to rounding.
Itemized Breakdown (250 Units Consumed, 1 kW Load)
| Charge Component | Units / Load | Applicable Rate | Amount (₹) |
|---|---|---|---|
| Slab 0–200 Energy Charge | 200 kWh | ₹0.00/unit | ₹0.00 |
| Slab 201–400 Energy Charge | 50 kWh | ₹4.70/unit | ₹235.00 |
| Fixed Demand Charges | 1 kW Connected Load | ₹0.00/kW | ₹0.00 |
| State Electricity Duty (0%) | — | 0% statutory duty | ₹0.00 |
| Net Estimated Bill | 250 kWh draw | Avg ₹0.94/unit | ₹235 |
TNPDCL (formerly TANGEDCO/TNEB) Bill Reference Matrix (50 to 1,000 Units)
| Units (kWh) | Energy Charges | Fixed Charge | Subsidy Relief | Effective Rate | Net Bill (₹) |
|---|---|---|---|---|---|
| 50 kWh | ₹0 | ₹0 | ₹0 | ₹0.00/unit | ₹0 |
| 100 kWh | ₹0 | ₹0 | ₹0 | ₹0.00/unit | ₹0 |
| 150 kWh | ₹0 | ₹0 | ₹0 | ₹0.00/unit | ₹0 |
| 200 kWh | ₹0 | ₹0 | ₹0 | ₹0.00/unit | ₹0 |
| 250 kWh | ₹235 | ₹0 | ₹0 | ₹0.94/unit | ₹235 |
| 300 kWh | ₹470 | ₹0 | ₹0 | ₹1.57/unit | ₹470 |
| 400 kWh | ₹940 | ₹0 | ₹0 | ₹2.35/unit | ₹940 |
| 500 kWh | ₹1570 | ₹0 | ₹0 | ₹3.14/unit | ₹1,570 |
| 750 kWh | ₹0 | ₹0 | ₹0 | ₹0.00/unit | ₹0 |
| 1000 kWh | ₹0 | ₹0 | ₹0 | ₹0.00/unit | ₹0 |
Published Domestic Tariff Schedule (Bi-Monthly Cycle)
| Consumption Slab Bracket | Energy Rate (₹/unit) | Fixed Charge (₹/kW/month) | State Duty Tax |
|---|---|---|---|
| 0 – 200 units | ₹0.00 | ₹0/kW | 0% |
| 201 – 400 units | ₹4.70 | — | — |
| 401 – 500 units | ₹6.30 | — | — |
Commercial Tariff Schedule (LT-2 / Commercial Non-Domestic)
| Commercial Slab Bracket | Energy Rate (₹/unit) | Fixed Charge (₹/kW/month) | State Duty Tax |
|---|---|---|---|
| 0 – 100 units | ₹6.00 | ₹150/kW | 0% |
| Above 101 units | ₹9.50 | — | — |
TNPDCL (formerly TANGEDCO/TNEB) Meter Sanctioned Load Fixed Charges (1 kW to 5 kW)
Fixed capacity demand charges levied per billing cycle based on approved sanctioned load capacity before energy consumption:
| Sanctioned Load (Capacity) | Typical Household Profile | Monthly Fixed Charge | Annual Fixed Cost |
|---|---|---|---|
| 1 kW Meter | 1 BHK / Studio (Lights, Fans, TV, Refrigerator) | ₹0/mo | ₹0/yr |
| 2 kW Meter | 2 BHK Flat (Lights, Fans, Fridge, 1 Inverter AC / Geyser) | ₹0/mo | ₹0/yr |
| 3 kW Meter | 3 BHK Apartment (Multiple ACs, Geyser, Washing Machine) | ₹0/mo | ₹0/yr |
| 4 kW Meter | 3–4 BHK Independent House (2+ ACs, High Seasonal Load) | ₹0/mo | ₹0/yr |
| 5 kW Meter | Large Villa / 3-Phase Residential (Central AC, EV Charger) | ₹0/mo | ₹0/yr |
TNEB Old vs New Tariff Slabs (Bi-Monthly Domestic LT-I A)
Comparison of Tamil Nadu TNPDCL domestic bi-monthly tariff slabs between the previous tariff order and the revised schedule:
| Consumption Slab (60 Days) | Old Tariff Rate | Revised Tariff Rate | Government Subsidy |
|---|---|---|---|
| 0 – 100 units | Free (₹0.00) | Free (₹0.00) | 100% Free (₹450 subsidy) |
| 101 – 200 units | ₹1.50 / ₹2.00 | ₹4.50 (₹2.25 net) | ₹2.25/unit govt relief |
| 201 – 400 units | ₹3.00 / ₹4.50 | ₹4.50 / unit | Standard Tariff |
| 401 – 500 units | ₹4.50 / ₹6.00 | ₹6.00 / unit | Standard Tariff |
| 501 – 600 units | ₹6.00 / ₹8.00 | ₹8.00 / unit | Higher Tier Slab |
| 601 – 800 units | ₹8.00 / ₹9.00 | ₹9.00 / unit | Higher Tier Slab |
| 801 – 1,000 units | ₹9.00 / ₹10.00 | ₹10.00 / unit | High Draw Surcharge |
| Above 1,000 units | ₹11.00 | ₹11.00 / unit | Maximum Tariff Bracket |
Electricity Bill for 100 Units under TNPDCL (formerly TANGEDCO/TNEB)
The estimated domestic bill for 100 units under TNPDCL (formerly TANGEDCO/TNEB) (Tamil Nadu) is ₹0 based on configured FY 2026-27 tariffs — ₹0 energy charges plus ₹0 fixed demand fees, averaging ₹0.00/unit.
Electricity Bill for 200 Units under TNPDCL (formerly TANGEDCO/TNEB)
The estimated domestic bill for 200 units under TNPDCL (formerly TANGEDCO/TNEB) (Tamil Nadu) is ₹0 based on configured FY 2026-27 tariffs — ₹0 energy charges plus ₹0 fixed demand fees, averaging ₹0.00/unit.
Electricity Bill for 300 Units under TNPDCL (formerly TANGEDCO/TNEB)
The estimated domestic bill for 300 units under TNPDCL (formerly TANGEDCO/TNEB) (Tamil Nadu) is ₹470 based on configured FY 2026-27 tariffs — ₹470 energy charges plus ₹0 fixed demand fees, averaging ₹1.57/unit.
Electricity Bill for 500 Units under TNPDCL (formerly TANGEDCO/TNEB)
The estimated domestic bill for 500 units under TNPDCL (formerly TANGEDCO/TNEB) (Tamil Nadu) is ₹1,570 based on configured FY 2026-27 tariffs — ₹1570 energy charges plus ₹0 fixed demand fees, averaging ₹3.14/unit.
TNPDCL (formerly TANGEDCO/TNEB) Consumer Services & Account Portal
Essential consumer account management, online bill payment channels, and fault reporting procedures for Tamil Nadu Power Distribution Corporation Limited (TNPDCL, formerly TANGEDCO/TNEB) consumers.
Find your 10 to 12-digit Consumer Number (CA Number / Account ID / K Number) printed on the top section of your physical bill or in SMS billing notifications.
Access your statement and pay bills via NetBanking, UPI, or Credit Cards at the official portal:
Official online portal verification under review. Please visit your local section office.For power tripping, transformer faults, or broken cables, call 1912 or dial central helpline 1912 for priority escalation.
How to Read Your TNPDCL (formerly TANGEDCO/TNEB) Meter & Avoid Higher Tariff Slabs
Follow these 3 practical steps to determine your exact monthly consumption from your digital energy meter and manage high-draw appliances:
Wait for the auto-scroll display on your digital energy meter until the cumulative reading ending with kWh appears.
Subtract the previous month's final reading from your current reading:
Units = Current kWh - Previous kWh
Enter the resulting units into our TNPDCL (formerly TANGEDCO/TNEB) calculator above to see your exact breakdown of energy charges, load fees, duty, and subsidies.
Target High-Draw Appliances to Avoid Upper Slab Tiers
Every degree increase above 18°C reduces AC power draw by approx 6%. Setting your 1.5 Ton AC to 24°C can save significant kWh monthly.
Replacing standard 75W induction fans with 28W BLDC fans reduces fan energy use by ~60%, lowering your monthly slab progression.
Under PM Surya Ghar Muft Bijli Yojana, a 2 kW to 3 kW rooftop solar system generates approx 240-360 units monthly with central subsidies.
Track daily peak consumption and shift heavy appliances (water heaters, washing machines) to avoid unexpected slab tier jumps.
Appliance Electricity Estimator
Select your household appliances and usage hours to estimate total monthly units (kWh).
Standard 1.5 Ton 5-Star / Inverter split AC (~1.2 kWh per hour).
Standard 1.5 Ton 3-Star non-inverter AC (~1.6 kWh per hour).
Standard 75W ceiling fan.
5-Star BLDC fan (saves 60% electricity).
Evaporative air cooler pump and blower.
Double door 250L-300L frost-free refrigerator.
Standard energy efficient 10W LED bulb.
4-ft LED tube light.
Full HD / 4K LED Smart TV.
Instant or storage water heater (2000W).
Front load or top load washing machine.
Electric induction stove (1800W).
1 HP residential water submersible/monoblock pump.
PC or workstation with monitor.
Convection microwave oven.
Rooftop Solar ROI & Savings Estimator
See how much money you can save every month by installing rooftop solar panels with Central Government subsidy.
Calculation Methodology & Tariff Authority (TNPDCL (formerly TANGEDCO/TNEB))
Clear documentation of billing components modeled in this independent calculation versus separate utility billing line items.
Calculation Scope & Component Breakdown (TNPDCL (formerly TANGEDCO/TNEB))
Defensible itemization of bill components accounted for in this independent calculation versus separate utility billing line items:
- • Progressive Slab Energy Charges 3 domestic slab tiers calculated on a bi-monthly cycle for TNPDCL (formerly TANGEDCO/TNEB)
- • Sanctioned Load Fixed Demand Fee Modeled at ₹0/kW connected demand fee per month
- • Fuel Surcharge Adjustment (FAC / FPPPA) Regulator-notified fuel surcharge basis
- • State Electricity Duty 0% statutory state duty levied on power consumption in Tamil Nadu
- • State Government Subsidy Scheme Subsidy scheme (effective 10 May 2026, per published reports; primary documents not yet reviewed; G.O. (Ms) No. 50 dated 10 May 2026, TNERC Order No. 5 of 2026 (date not yet confirmed)): households consuming UP TO 500 units bi-monthly receive the first 200 units FREE. For consumption 201–400 units: ₹4.70/unit; 401–500 units: ₹6.30/unit. Households consuming MORE THAN 500 units bi-monthly revert to the older structure where only the first 100 units are free. Exact slab rates above 500 units require verification from TNPDCL.
- • Prior Unpaid Arrears & Penalty Dues Outstanding balances or accumulated adjustments from prior billing cycles
- • Delayed Payment Surcharge (DPS / LPS) Late payment interest fees levied when bill settlement occurs after the due date
- • Special Metering & Connection Fees One-off charges for new connection, load enhancement, or meter replacement
- • Local Municipal Taxes & Cesses Specific municipal taxes, urban water cess, or transit fees where separately levied
Independent electricity bill estimation based on configured FY 2026-27 tariff schedules for TNPDCL (formerly TANGEDCO/TNEB) (Tamil Nadu). Verify the applicable tariff order, category, adjustments, and subsidy rules with TNPDCL (formerly TANGEDCO/TNEB) for billing settlement.
Frequently Asked Questions (TNPDCL (formerly TANGEDCO/TNEB) Power Bill)
Direct answers to common consumer questions regarding electricity tariffs, meter reading, helpline numbers, and bill calculations for TNPDCL (formerly TANGEDCO/TNEB).
How to check TNPDCL (formerly TANGEDCO/TNEB) electricity bill online? ▼
To check your TNPDCL (formerly TANGEDCO/TNEB) electricity bill online, contact your local Tamil Nadu Power Distribution Corporation Limited (TNPDCL, formerly TANGEDCO/TNEB) section office or consumer care center with your Consumer Number.
How is the TNPDCL (formerly TANGEDCO/TNEB) electricity bill calculated? ▼
Enter your monthly units in our TNPDCL (formerly TANGEDCO/TNEB) calculator above. The engine automatically applies published Tamil Nadu State Electricity Regulatory Commission (SERC) tariff slab rates, monthly fixed demand charges (₹0/kW), statutory state electricity duty (0%), and applicable fuel surcharges (FAC/FPPPA).
What is the customer care helpline number for TNPDCL (formerly TANGEDCO/TNEB)? ▼
You can reach TNPDCL (formerly TANGEDCO/TNEB) (Tamil Nadu Power Distribution Corporation Limited (TNPDCL, formerly TANGEDCO/TNEB)) customer service 24/7 at toll-free helpline number 1912 or central emergency power line 1912 for billing complaints, meter faults, or power outage reports.
How much is a 200 units electricity bill under TNPDCL (formerly TANGEDCO/TNEB)? ▼
For 200 units under TNPDCL (formerly TANGEDCO/TNEB) (Tamil Nadu), a standard 1 kW domestic connection costs approximately ₹0. Qualifying households may receive state subsidy relief (Subsidy scheme (effective 10 May 2026, per published reports; primary documents not yet reviewed; G.O. (Ms) No. 50 dated 10 May 2026, TNERC Order No. 5 of 2026 (date not yet confirmed)): households consuming UP TO 500 units bi-monthly receive the first 200 units FREE. For consumption 201–400 units: ₹4.70/unit; 401–500 units: ₹6.30/unit. Households consuming MORE THAN 500 units bi-monthly revert to the older structure where only the first 100 units are free. Exact slab rates above 500 units require verification from TNPDCL.).
How much is a 100 units electricity bill under TNPDCL (formerly TANGEDCO/TNEB)? ▼
For 100 units under TNPDCL (formerly TANGEDCO/TNEB) (Tamil Nadu), a standard 1 kW domestic connection costs approximately ₹0 based on published FY FY 2026-27 domestic tariff schedules.
Where can I find my Consumer ID / CA Number on a TNPDCL (formerly TANGEDCO/TNEB) bill? ▼
Your Consumer ID (also designated as Account ID, CA Number, or K-Number depending on the state) is printed on the top section of your physical electricity bill receipt and in SMS alerts from TNPDCL (formerly TANGEDCO/TNEB).
Who do I call for a TNPDCL (formerly TANGEDCO/TNEB) power cut or outage complaint? ▼
For power outages, line tripping, or transformer faults, call the TNPDCL (formerly TANGEDCO/TNEB) 24/7 toll-free helpline at 1912 or dial 1912.
What tariff period does this TNPDCL (formerly TANGEDCO/TNEB) calculator use? ▼
This calculator uses the published FY FY 2026-27 tariff schedule for TNPDCL (formerly TANGEDCO/TNEB) domestic and commercial categories.
What is the TNEB bill for 500 units in Tamil Nadu? ▼
Under TNEB's bi-monthly domestic tariff, a 500-unit bill totals ₹1,725: 0–100 units are 100% Free (Government subsidy), 101–200 units cost ₹225 (subsidized @ ₹2.25/unit), 201–400 units cost ₹900 (@ ₹4.50/unit), and 401–500 units cost ₹600 (@ ₹6.00/unit).
What is the TNEB bill for 800 units in Tamil Nadu? ▼
For 800 units over a 2-month billing cycle, the TNEB bill is ₹4,230. Once consumption crosses 500 units, the subsidy on units 101-200 is adjusted, and higher slabs apply (501–600 units @ ₹8.00/unit, 601–800 units @ ₹9.00/unit).
What is the TNEB bill for 1000 units in Tamil Nadu? ▼
For 1,000 units bi-monthly, the TNEB bill is ₹6,130: 0–100 units free, 101–400 units @ ₹4.50 (₹1,350), 401–500 units @ ₹6.00 (₹600), 501–600 units @ ₹8.00 (₹800), 601–800 units @ ₹9.00 (₹1,800), and 801–1,000 units @ ₹10.00 (₹2,000), minus ₹420 slab relief.
Is TNEB electricity bill monthly or bi-monthly in Tamil Nadu? ▼
TNEB (TNPDCL) bills residential consumers on a Bi-Monthly (every 2 months / 60 days) cycle. Meter readers inspect your meter once every two months, and the state government domestic subsidy applies across that full 60-day consumption period.
Why is my TNEB electricity bill so high in summer? ▼
In Tamil Nadu's 60-day bi-monthly billing system, summer AC usage easily pushes total 2-month units past 500 units. Crossing 500 units causes the subsidy to revert from 200 free units to 100 free units, while higher slabs jump sharply, compounding your total bill rapidly.
How does TNEB free electricity subsidy work in Tamil Nadu? ▼
Tamil Nadu provides the first 200 free units for domestic households using up to 500 units in a bi-monthly cycle (TNERC scheme, effective 10 May 2026); consumption above 500 units reverts to the earlier 100-free-unit rule.