DERC Invokes Relaxation Powers to Authorize Monthly Surcharge Recovery; Breaches 10% FPPAS Ceiling

The June 2026 DERC Regulatory Order

On June 10, 2026, the Delhi Electricity Regulatory Commission (DERC) invoked its regulatory powers to permit the city’s three primary power distribution companies (DISCOMs)—BSES Rajdhani Power Limited (BRPL), BSES Yamuna Power Limited (BYPL), and Tata Power Delhi Distribution Limited (TPDDL)—to recover enhanced power procurement costs. The order specifically authorizes a relaxation of the 10% ceiling on the Fuel and Power Purchase Adjustment Surcharge (FPPAS) for the April 2026 billing cycle. This intervention follows submissions from the DISCOMs demonstrating that actual power purchase costs for April 2026 significantly exceeded the base costs established in the September 30, 2021, tariff order.

Technical Context: Transition to Monthly Cost-Reflective Recovery

This regulatory action solidifies a technical transition from a quarterly recovery mechanism to a month-to-month framework for the Power Purchase Adjustment Charge (PPAC). Under the DERC (Terms and Conditions for Determination of Tariff) (Second Amendment) Regulations, 2026, specifically Regulation 134(d), a 10% ceiling is typically mandated for FPPAS recovery within a single billing cycle. However, invoking Regulation 172 of the 2017 Tariff Regulations, the Commission has bypassed this cap to address immediate liquidity concerns.

PPAC and FPPAS function as recovery mechanisms for uncontrollable procurement variables, including coal and gas price volatility, power purchase rates, and transportation or freight charges. The updated framework also incorporates a provision for the gradual recovery of any remaining unrecovered amounts in subsequent billing cycles should current costs exceed permitted limits. This shift to high-frequency adjustments is intended to ensure that retail tariffs remain cost-reflective in real-time, mitigating the long-term accumulation of financial arrears.

Data Breakdown: Requested vs. Approved Surcharges

The following table details the discrepancy between the DISCOMs’ requested surcharges for April 2026 and the DERC’s officially approved recovery rates.

*Note: While the Commission technically permitted an additional recovery of 8.50% (allowing for a potential total of 18.50%), it restricted TPDDL’s total recovery to its actual claim of 16.00%. This approval is conditional upon the submission of a Statutory Auditor Certificate and a supporting affidavit verifying purchase quantities and costs for April 2026.

Factors Driving Escalation in Power Procurement Costs

The surge in April 2026 procurement costs is attributed to several macroeconomic and technical drivers:

• Geopolitical Influence on Fuel Prices: Rising costs for coal and gas, exacerbated by ongoing tensions in the Middle East.
• Imported Coal Requirements: A heightened reliance on higher-priced imported coal to maintain grid stability.
• Increased Thermal Capital Expenditure: Capital costs for new thermal projects have escalated to Rs 100-120 million per MW, compared to previous ranges of Rs 50-100 million.
• Fixed Charge Burden: Fixed charges now constitute 65-70% of thermal generation costs; lower plant load factors (PLFs) further increase the per-unit cost burden.
• Primary Generation Mix: Coal continues to serve as the dominant baseload source, accounting for a 68% share of India’s total electricity generation in FY 2026.

Consumer Impact and Subsidy Boundaries

The financial impact of the revised PPAC rates is tiered based on consumption volume and the Delhi government’s subsidy framework:

1. Domestic Subsidized Consumers: The subsidy is unit-linked, meaning the government absorbs the per-unit surcharge increase on behalf of the consumer. Households consuming 0-200 units (100% subsidy) remain at zero cost. For those in the 201-400 or up to 500-unit brackets, the unit-linked nature of the partial subsidy prevents an additional financial burden.
2. High-Consumption Households: Domestic consumers exceeding 500 units per month will see a direct impact. For example, a household with a 2 kW sanctioned load consuming 600 units in a BYPL area will see an estimated bill increase of Rs 170 (from Rs 3,766 to Rs 3,936). In a BRPL area, a similar consumer will see an increase of approximately Rs 102 (from Rs 3,850 to Rs 3,952).
3. Commercial and Industrial Segments: These non-subsidized sectors will bear the full weight of the surcharge. Data from the Chamber of Trade and Industry (CTI) indicates that for commercial consumers with loads above 3 kVA, Delhi’s tariff of Rs 8.50 per kVAh is now significantly higher than rates in Haryana (Rs 6.95 per kVAh) and Uttar Pradesh (Rs 8.12 per kVAh).

Long-Term Financial Context: Regulatory Assets

This adjustment is part of a broader effort to resolve “regulatory assets”—deferred costs that the Supreme Court characterized as a “regulatory failure” in its August 2025 ruling. The shift to a monthly recovery framework is specifically designed to prevent the recurrence of such failures by ensuring immediate cost recovery.

The Supreme Court has mandated a four-year recovery timeline, beginning April 1, 2024, for Rs 27,200.37 crore in pending assets. As of March 31, 2024, the specific asset breakdowns are:

• BRPL: Rs 12,993.53 crore
• BYPL: Rs 8,419.14 crore
• TPDDL: Rs 5,787.70 crore

The DERC is tasked with implementing this court-ordered recovery plan, ensuring all assets are cleared by 2028 through cost-reflective tariff mechanisms and rigorous audits.