Basics
- DISCOMs (Distribution Companies):
State-run/private companies responsible for last-mile electricity distribution to consumers. - Annual Revenue Requirement (ARR):
- Total revenue DISCOMs are allowed to recover through tariffs + government subsidies.
- Reflects approved expenditure (power purchase, O&M, interest, depreciation, return on equity).
- Average Cost of Supply (ACS):
- Actual cost incurred by DISCOMs to supply one unit of electricity to consumers.
- Includes cost of buying power, transmission, distribution losses, etc.
- ACS-ARR Gap:
- If ACS > ARR, DISCOM makes a loss per unit supplied.
- Causes financial stress since revenue ≠ cost.
- Regulatory Asset (RA):
- Mechanism to defer recovery of revenue gap.
- SERCs allow DISCOMs to record unrecovered costs as “regulatory assets” instead of immediately increasing tariffs.
- Costs deferred for recovery in future years (with interest).
Relevance:
- GS II (Polity & Governance – Role of Judiciary in enforcing financial discipline)
- GS III (Economy – Infrastructure: Power sector, Distribution reforms, Subsidy management, Tariff rationalisation)
Supreme Court Order (2025)
- Existing regulatory assets to be cleared within 4 years.
- New regulatory assets must be liquidated within 3 years.
- Cap: RA ≤ 3% of a DISCOM’s ARR.
- Transparent recovery roadmaps to be prepared by SERCs.
- Intensive audits for DISCOMs failing to recover assets.
Why ACS-ARR Gap Persists?
- Non-cost reflective tariffs: Populist policies keep tariffs artificially low.
- Delayed subsidies: States delay subsidy transfers for agriculture/BPL households.
- Rising input costs: Sudden hikes in coal/gas prices increase power purchase costs.
- Technical & commercial losses: Theft, billing inefficiencies, high AT&C losses.
Impact of Regulatory Assets
- Short-term benefit: Tariffs don’t rise sharply, consumers shielded temporarily.
- Long-term burden: Deferred costs accumulate → future tariff shocks.
- Carrying cost (interest): Consumers ultimately pay higher than original gap.
- Cash flow stress: DISCOMs can’t pay power generators on time → risk of load shedding.
- Debt trap: DISCOMs borrow to bridge gap → rising liabilities.
- Modernisation impact: Funds locked in unrecovered costs → less investment in smart grids, renewable integration, and consumer services.
Examples
- Punjab (2003-04): First RA created (₹487 crore gap, ₹150 crore deferred).
- Delhi (2024-25):
- BSES Rajdhani: ₹36,057 crore RA.
- BSES Yamuna: ₹22,040 crore RA.
- Tata Power Delhi: ₹8,226 crore gap.
- Tamil Nadu (2021-22): ₹89,375 crore RA → systemic stress.
Consumer Impact
- Example: Delhi DISCOMs need to recover ₹16,580 crore annually within 4 years.
- With 30 billion units consumed annually, tariff hike ≈ ₹5.5/unit if immediate recovery attempted.
- Hence RAs are used, but deferred hikes become steeper over time.
Way Forward
- Tariff Rationalisation:
- Tariffs must reflect actual cost.
- Targeted subsidies for vulnerable consumers (DBT model).
- Timely Subsidy Payments:
- States should release subsidies on time → prevent revenue gap.
- Automatic Cost Pass-through:
- Mechanisms like Fuel & Power Purchase Cost Adjustment (FPPCA) allow quick tariff revision with fuel cost changes.
- Annual True-up Exercises:
- Regular reconciliation of projected vs. actual costs to avoid backlog.
- Financial Discipline:
- SERCs must enforce strict RA caps.
- DISCOMs must cut AT&C losses and improve billing efficiency.
- Grid Modernisation Financing:
- Ring-fence funds for grid upgrades, smart meters, and renewable integration separate from RA recovery.
- Judicial Oversight:
- SC’s intervention acts as a disciplinary push for States, regulators, and DISCOMs.