Delhi Electricity Tariffs, Slabs & Govt Subsidy Rules (2026-27)
Delhi electricity tariffs are governed by DERC and applied across the capital's distribution utilities: BSES Rajdhani (BRPL), BSES Yamuna (BYPL), and Tata Power DDL (TPDDL). While base energy slabs are uniform, the key operational variation between DISCOMs is their Power Purchase Adjustment Cost (PPAC) surcharge. Eligible consumers can avail of the Delhi Government's 200-unit free power subsidy via mandatory voluntary opt-in.
Ref: DERC Tariff Schedule FY 2025-26 & PPAC Orders • Effective: 2025-04-01
⚡ Delhi DISCOM Tariff & Subsidy Calculator
Delhi Domestic Electricity Tariff Slabs (DERC Approved)
Statutory base energy charges per kWh applicable across BSES Rajdhani, BSES Yamuna, and Tata Power DDL:
| Slab Sequence | Consumption Slab (kWh) | Energy Rate (₹ / kWh) | Subsidy Eligibility |
|---|---|---|---|
| Slab 1 | 0 - 200 kWh | ₹3.00 | Lifeline tier (100% subsidy eligible with opt-in) |
| Slab 2 | 201 - 400 kWh | ₹4.50 | Mid tier (50% energy subsidy capped at ₹800) |
| Slab 3 | 401 - 800 kWh | ₹6.50 | Upper domestic tier (no subsidy) |
| Slab 4 | 801 - 1200 kWh | ₹7.00 | High domestic consumption slab |
| Slab 5 | Above 1200 kWh | ₹8.00 | Maximum consumption tier |
Delhi Monthly Fixed Demand Charges
Fixed charges are determined per kilowatt (kW) of sanctioned load under DERC orders:
| Sanctioned Load Tier | Fixed Charge (₹ / kW / Month) | Billing Application |
|---|---|---|
| Up to and including 2 kW | ₹20.00 / kW / month | e.g., ₹40.00 for 2 kW |
| Above 2 kW to 5 kW | ₹50.00 / kW / month | e.g., ₹150.00 for 3 kW |
| Above 5 kW to 15 kW | ₹140.00 / kW / month | e.g., ₹840.00 for 6 kW |
| Above 15 kW | ₹250.00 / kW / month | High-capacity residential load |
Power Purchase Adjustment Cost (PPAC) & Surcharges
DERC-approved variable surcharge levied on net billed energy charges to compensate utilities for market fuel fluctuations and power procurement costs. Differs by utility.
Levied under DERC statutory orders at 7.0% on net energy charges plus fixed charges to fund pension liabilities of erstwhile DVB employees.
Statutory municipal electricity duty of 5.0% levied on net energy consumption charges.
200 Units Free Electricity & 50% Subsidy up to 400 Units (Opt-In Required)
The Government of NCT of Delhi provides targeted power subsidies to domestic consumers who register their opt-in request with their respective DISCOM. The subsidy operates on a tiered formula with an absolute cliff at 400 units.
Subsidy Rules & Application:
- Consumption up to 200 kWh/month: 100% waiver on energy charges, fixed charges, PPAC, and taxes (Net Bill = ₹0.00).
- Consumption 201 to 400 kWh/month: 50% subsidy on energy charges only, capped at a maximum of ₹800/month. Fixed charges, PPAC, pension surcharge, and duty remain payable.
- Opt-in registration via DISCOM SMS, WhatsApp, QR code, or online portal is mandatory and must be renewed periodically.
⚠️ Critical 400-Unit Hard Cliff:
400-UNIT HARD CLIFF: If total monthly consumption exceeds 400 units by even 1 kWh (e.g., 401 units), all subsidies are completely eliminated. The consumer is billed for all 401 units under standard DERC rates starting from unit 1, causing a steep jump in the electricity bill.
Sample Monthly Bill: 320 kWh Consumption (2 kW Load, BRPL with Subsidy Opt-In)
Scenario: Domestic household under BSES Rajdhani (35.83% PPAC) consuming 320 units with active subsidy opt-in.
| Bill Component | Calculation Formula | Amount (₹) |
|---|---|---|
| Slab 1 (0 – 200 units) | 200 kWh × ₹3.00/kWh | ₹600.00 |
| Slab 2 (201 – 400 units, 120 units) | 120 kWh × ₹4.50/kWh | ₹540.00 |
| Delhi Govt 50% Subsidy | 50% of ₹1,140.00 (Capped at ₹800/mo) | - ₹570.00 |
| Fixed Charge (2 kW Load) | 2 kW × ₹20.00/kW/month | ₹40.00 |
| BRPL PPAC Surcharge (35.83%) | 35.83% of Net Energy Charges (₹570.00) | ₹204.23 |
| Pension Trust Surcharge (7%) | 7% of (Net Energy ₹570.00 + Fixed ₹40.00 = ₹610.00) | ₹42.70 |
| Electricity Tax (5%) | 5% of Net Energy Charges (₹570.00) | ₹28.50 |
| Estimated Total Bill (Effective Rate: ₹2.77/kWh) | ₹885.43 | |
How Delhi's Distribution Utilities Compare
While base DERC energy slabs and fixed charge rates are identical across NCT of Delhi, the three primary utilities exhibit sharp differences in power procurement costs, PPAC surcharges, and service demographics:
BSES Rajdhani Power Limited
Coverage: South and West Delhi (Dwarka, Saket, Vasant Kunj, Janakpuri, Nehru Place, Alaknanda)
Highest residential air conditioning cooling demand during summer peaks. Procures substantial power through medium-term agreements; DERC-approved PPAC surcharge is 35.83%.
BSES Yamuna Power Limited
Coverage: Central and East Delhi (Laxmi Nagar, Mayur Vihar, Chandni Chowk, Daryaganj, Shahdara)
Densely populated urban fabric with heavy commercial-residential mixed loads. Higher short-term power purchase reliance results in the highest PPAC surcharge in Delhi at 40.71%.
Tata Power Delhi Distribution Limited
Coverage: North and North-West Delhi (Rohini, Pitampura, Model Town, Civil Lines, Narela)
Pioneered automated distribution management and advanced smart metering in Delhi. Achieves the lowest distribution loss levels (AT&C < 6%) and lowest PPAC surcharge at 23.16%.
Delhi Electricity Distribution Companies (DISCOMs)
South and West Delhi domestic tariff rates, 35.83% PPAC, and subsidy rules. Official consumer portal.
Central and East Delhi domestic tariff rates, 40.71% PPAC, and billing. Official consumer portal.
North and North-West Delhi domestic tariff rates, 23.16% PPAC, and fixed charges. Official consumer portal.
Verification Provenance & Regulatory Notes
- Tariff rates verified against DERC Schedule of Retail Tariff for Domestic Consumers in NCT of Delhi.
- Power Purchase Adjustment Cost (PPAC) rates are subject to quarterly revision by DERC based on actual DISCOM procurement invoices.
- Delhi Government subsidy requires active voluntary registration with the respective DISCOM.
- For official billing disputes, supply faults, or meter accuracy complaints, dial 1912 or approach the DERC Consumer Grievance Redressal Forum (CGRF).
Frequently Asked Questions: Delhi Electricity Tariffs & Subsidy
How does the Delhi Government 200 unit free electricity subsidy work?
Under DERC guidelines and Delhi Government notification, domestic consumers who have registered for the subsidy and consume up to 200 units per month receive a 100% waiver on energy charges, fixed charges, PPAC, and taxes, resulting in a ₹0 net bill.
What is PPAC on Delhi electricity bills and why does it differ between BRPL, BYPL, and TPDDL?
PPAC (Power Purchase Adjustment Cost) is a surcharge approved quarterly by DERC to compensate utilities for changes in fuel and power procurement costs. Because BRPL, BYPL, and TPDDL have different power generation contracts and grid purchase mixes, their approved PPAC percentages differ: 35.83% for BRPL, 40.71% for BYPL, and 23.16% for TPDDL.
What happens to my Delhi electricity bill if I consume 205 units?
If you consume 205 units, you cross into the 201–400 slab. You no longer receive a zero bill. Instead, you receive a 50% subsidy on energy charges (capped at ₹800), while fixed charges, PPAC surcharges, pension surcharges, and electricity tax must be paid in full.