Privatisation Not the Solution: Why Tamil Nadu is Resisting Power Sector Reform

By Energy Desk

The debate over the privatization of electricity distribution companies (DISCOMs) has long been a contentious issue in Indian policy circles. However, a recent authoritative study commissioned by the 16th Finance Commission has provided significant empirical backing to the Tamil Nadu government’s firm stance against privatizing its power distribution sector.

Tamil Nadu Minister for Energy Resources, R. Nirmalkumar, recently issued a categorical assertion that the state will maintain public control over electricity distribution. This statement is not merely a political posture; it is a calculated policy position supported by data suggesting that the "privatization-as-a-cure-all" model is fundamentally ill-suited for the unique socio-economic landscape of Tamil Nadu.

The Core Finding: Why Privatization Doesn’t Fit Tamil Nadu

The study, conducted by Prayas, a Pune-based non-governmental, non-profit organization, offers a nuanced perspective on the privatization debate. While acknowledging that private sector participation can serve as a catalyst for efficiency in regions burdened by unmanageably high Aggregate Technical and Commercial (AT&C) losses, the researchers caution against a "one-size-fits-all" approach.

According to the study, privatization may yield negligible benefits in states like Tamil Nadu, where the current infrastructure performs above the national benchmark. "In states where AT&C losses are already low and supply quality is robust, the disruption caused by a shift to private entities is unlikely to result in significant operational or fiscal gains," the report notes. This conclusion validates the state government’s decision to retain the Tamil Nadu Power Distribution Corporation Limited (TNPDCL) as a public utility.

Chronology: A Legacy of State-Led Power Distribution

Tamil Nadu’s skepticism toward private involvement in the power sector is not a new development; it is deeply rooted in the state’s historical governance model.

• Pre-1990s: The state electricity sector was governed by the Tamil Nadu Electricity Board (TNEB), which integrated generation, transmission, and distribution. During this era, small electricity cooperative societies functioned in regions like Thirumayam and Kumbakonam, serving localized needs.
• Late 1990s: As part of broader administrative reforms, these cooperatives were merged into the TNEB, centralizing distribution under a single state authority.
• 2010s: Despite strong pressure from the Rural Electrification Corporation (REC) to introduce private franchisees for rural power distribution, Tamil Nadu consistently resisted these efforts, citing concerns over service reliability and social obligations.
• 2025-26: The current government, guided by both the 16th Finance Commission’s study and internal reviews, has doubled down on its commitment to public ownership, framing it as the only way to ensure universal access to electricity across the state’s diverse geography.

Supporting Data: Benchmarking Performance

The argument for maintaining the status quo is heavily supported by the state’s recent performance metrics, which consistently outperform the national average.

AT&C Loss Comparison

According to the 14th edition of the Power Finance Corporation’s (PFC) Integrated Rating and Ranking, Tamil Nadu’s AT&C losses were significantly lower than the national average over the last three fiscal years:

• 2022-23: 10.92% (TN) vs 15.22% (All-India)
• 2023-24: 11.39% (TN) vs 15.97% (All-India)
• 2024-25: 10.96% (TN) vs 15.04% (All-India)

Quality of Service

Beyond transmission losses, service quality—measured by the failure rate of Distribution Transformers (DTs)—serves as a critical indicator of reliability. In 2024-25, the TNPDCL recorded a DT failure rate of just 2.65%, nearly half of the national average of 5.02%. This statistic covers a vast network of 4.48 lakh transformers, demonstrating that the state utility is effectively maintaining its infrastructure under challenging conditions.

The "Cherry-Picking" Dilemma: Social Obligations vs. Profitability

A critical factor that complicates the privatization narrative is the geography and demography of Tamil Nadu’s electricity consumers. The state supports roughly 25 lakh agricultural connections, many of which are located in remote or economically disadvantaged regions like the Cauvery delta or the rugged terrain of the Jawadhu Hills.

Industry experts argue that private players are primarily profit-driven and tend to focus on high-revenue, low-risk urban segments. If a private entity were to take over, it would likely avoid the capital-intensive and low-return burden of maintaining agricultural power lines or hilly terrain infrastructure. This would force the state government to retain the "unprofitable" segments, effectively leading to the "cherry-picking" of the sector. The government would remain responsible for the most difficult areas while losing the steady revenue streams of urban industrial and commercial zones, ultimately weakening the state’s financial position.

Official Responses and Strategic Overview

The state government’s current "White Paper" on the power sector provides a candid look at the fiscal realities. While the TNPDCL has achieved a provisional revenue surplus of ₹933 crore for 2025-26, the government acknowledges that this does not stem from operational perfection.

"The narrowing of the gap between the Average Cost of Supply and the Average Revenue Realised is not solely due to operational efficiency," the White Paper admits. Instead, it highlights that the reduction in the revenue gap is largely a result of loss-funding support provided by the state, often in compliance with conditions mandated by the Union government.

The Power Landscape (2025-26 Estimates)

Implications: A Call for Structural Reform Over Privatization

The implications of the Prayas study are clear: privatization is not a panacea for the financial woes of the power sector. The study suggests that the "financial stress" often cited as a reason for privatization is a systemic issue related to tariff setting, subsidy rationalization, and regulatory hurdles, rather than the ownership model itself.

The government’s proposed path forward involves a "comprehensive resolution framework." This includes:

1. Tariff Path Reform: Moving toward cost-reflective pricing to ensure that revenue keeps pace with supply costs.
2. Subsidy Rationalization: Ensuring that support reaches intended beneficiaries without creating massive fiscal deficits.
3. Debt Restructuring: Managing the massive outstanding debt of the four power utilities, which currently totals over ₹2.47 lakh crore.
4. Operational Accountability: Implementing internal reforms to improve collection cycles and grid management without handing over assets to third parties.

Conclusion

Tamil Nadu’s rejection of privatization is rooted in the realization that public utilities, despite their fiscal challenges, serve as the primary engine for rural development and social equity. The state’s ability to maintain high service standards while balancing the needs of 3.52 crore consumers suggests that the system is not broken—it is simply in need of internal calibration.

As the 16th Finance Commission reviews its findings, the Tamil Nadu model stands as a challenge to the prevailing belief that the private sector is inherently more efficient. Instead, the focus for the coming decade, as suggested by the study, should be on enhancing regulatory certainty, ensuring financial transparency, and strengthening the accountability of existing public institutions. For Tamil Nadu, the future of power lies not in ownership change, but in operational excellence.