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NCT (Delhi) Electricity Bill Calculator

Estimate your monthly electricity bill in Delhi, including the government subsidy, based on the latest DERC tariff slabs.

Estimated Bill Breakdown

Disclaimer: This is an estimate based on the DERC tariff schedule for FY 2024-25. It includes energy charges, fixed charges, and an 8% surcharge. The calculation also incorporates the current Delhi Government subsidy rules (e.g., zero bill up to 200 units). Subsidy policies and tariff rates are subject to change.

Understanding Your Delhi Electricity Bill (2025 Edition)

Delhi has one of the most unique electricity billing structures in India. With multiple distribution companies (DISCOMs) like BSES Rajdhani, BSES Yamuna, and Tata Power DDL operating under the regulations of the DERC (Delhi Electricity Regulatory Commission), the tariff can seem complex. However, the most talked-about feature is the "Zero Bill" policy.

Our electricity bill calculator is designed to cut through the confusion. It helps you verify if you qualify for the full subsidy and explains how electricity bill is calculated when you cross the subsidy limits.

The "Free Electricity" Scheme Explained

The concept of free electricity in Delhi works on a strict slab system. It is not an unconditional freebie; it depends entirely on your monthly consumption.

  • 0 - 200 Units: 100% Subsidy. If your meter reading shows consumption of 199 units, your net payable bill is Zero. You don't pay energy charges, fixed charges, or surcharges.
  • 201 - 400 Units: Partial Subsidy. You get a flat discount of up to ₹800 on your bill. You still have to pay the remaining amount.
  • Above 400 Units: No Subsidy. You pay the full bill amount, including all surcharges and taxes.

This is why monitoring your usage is critical. Crossing from 200 to 201 units can suddenly change your bill from ₹0 to roughly ₹600-₹800, which shocks many consumers.

Delhi Tariff Rates (Domestic)

To use an electricity bill unit rate calculator effectively, you need to know the base rates. As of the latest financial year, the domestic slab rates (excluding taxes) are approximately:

  • 0-200 units: ₹3.00 per kWh
  • 201-400 units: ₹4.50 per kWh
  • 401-800 units: ₹6.50 per kWh
  • 801-1200 units: ₹7.00 per kWh
  • Above 1200 units: ₹8.00 per kWh

Note: These are "Telescopic" rates. This means if you consume 250 units, the first 200 are charged at ₹3.00, and only the remaining 50 are charged at ₹4.50.

Components of Your Bill

When you try to calculate the electricity bill amount for a month, you must account for three main components:

  1. Energy Charge: The cost of the units you consumed (Units x Rate).
  2. Fixed Charge: A monthly fee based on your "Sanctioned Load." For a typical household with a 2kW load, this is roughly ₹40-₹50 per month per kW.
  3. PPAC & Surcharges: The Power Purchase Adjustment Cost (PPAC) and pension surcharges are percentages added to your total bill. Currently, this adds about 8-10% to your base bill amount.

How to Calculate Electricity Bill from Meter Reading

If you suspect your digital meter is fast, or the bill is wrong, you can do a self-audit. Knowing how to calculate electricity bill from meter reading puts the power back in your hands.

  1. Go to your meter and check the "kWh" reading (Total Active Energy).
  2. Subtract last month's reading (found on your previous bill) from the current reading.
  3. Enter the difference (e.g., 250) into our calculator above.
  4. Select your load (usually 2kW for small apartments, 5kW for larger homes with ACs).

You can check your official consumption history on the BSES Delhi Portal or the Tata Power DDL Website.

Tips to Keep Your Bill Under 200 Units

To maximize the benefit of free electricity in Delhi, efficiency is key.
1. AC Usage: Run your AC at 24°C instead of 18°C. This saves up to 20% energy.
2. Old Appliances: Replace old fans with BLDC fans (which consume 28W vs 75W).
3. Phantom Load: Unplug chargers and TVs when not in use. Even in standby mode, they consume units that could push you over the 200 limit.

Frequently Asked Questions (FAQ)

1. I consumed 201 units. Do I have to pay the full bill?

No, you don't pay the full bill, but you lose the 100% subsidy. You fall into the "201-400" category, where you get a flat discount of ₹800. However, your bill will no longer be zero.

2. How do I know my Sanctioned Load?

Your sanctioned load is printed on the top right corner of your electricity bill invoice. It is usually denoted in kW (Kilowatts). Most 2BHK flats have a load of 2kW or 3kW.

3. Does this calculator apply to commercial connections?

No. This tool is strictly for Domestic (Residential) category consumers. Commercial shops (Non-Domestic Low Tension - NDLT) have significantly higher tariff rates and no subsidy.

4. What is the PPAC surcharge?

PPAC stands for Power Purchase Adjustment Cost. It allows DISCOMs to recover variations in the cost of buying fuel (coal/gas) to generate electricity. It varies quarterly based on DERC orders.

5. How can I pay my bill online?

You can pay via the respective DISCOM websites (BSES Rajdhani, BSES Yamuna, Tata Power) or use UPI apps like Paytm, PhonePe, and GPay, which often have direct integration for Delhi bills.