PPA Termination Issue Rejected by Supreme Court Operates as Res Judicata; Petition Not Maintainable: CERC - 2025-07-16

CERCDismisses MSEDCL 's Plea to Quash Invoices, Upholds PPA Validity in Decade-Long Dispute with RGPPL

New Delhi – In a significant ruling with far-reaching implications for power purchase agreements (PPAs), the Central Electricity Regulatory Commission ( CERC ) has dismissed a petition by the Maharashtra State Electricity Distribution Company Limited (MSEDCL) seeking to invalidate over a decade's worth of invoices from Ratnagiri Gas and Power Private Limited (RGPPL). The Commission, led by Chairperson Shri Jishnu Barua , held that MSEDCL's petition was not maintainable, citing principles of constructive res judicata and limitation, as the core issue of the PPA's termination had already been implicitly rejected by the Supreme Court.

The decision brings a crucial turn in a protracted legal battle over capacity charges amounting to thousands of crores, stemming from MSEDCL's purported termination of its PPA with RGPPL in 2014.

Case Background: A Tale of Fuel Shortages and Contractual Disputes

The dispute originates from a 25-year PPA signed on April 10, 2007, for power from RGPPL's gas-based plant. When domestic gas supplies dwindled, RGPPL switched to more expensive Regasified Liquefied Natural Gas ( RLNG ) to declare its capacity. MSEDCL disputed its liability to pay fixed capacity charges for power based on RLNG , leading to the initial litigation before the CERC .

In 2013, the CERC ruled in favor of RGPPL, a decision later upheld by the Appellate Tribunal for Electricity (APTEL) in 2015. During the appeal's pendency, MSEDCL issued a letter on May 8, 2014, unilaterally terminating the PPA, effective April 1, 2014. RGPPL immediately repudiated this termination but did not challenge it in a separate suit, while continuing to raise invoices for capacity charges.

The matter eventually reached the Supreme Court, which dismissed MSEDCL's appeal in November 2023. MSEDCL's subsequent review petition, which specifically argued that the PPA termination issue had not been considered, was also dismissed in March 2024. Following this, RGPPL began uploading its outstanding invoices to the PRAAPTI portal, triggering potential coercive action against MSEDCL under the Late Payment Surcharge (LPS) Rules, prompting the present petition.

Arguments Before the Commission

MSEDCL's Stance: - The PPA was validly terminated on April 1, 2014, and this termination has attained finality as RGPPL never challenged it in court within the limitation period of three years. - All invoices raised by RGPPL post-termination are illegal, void, and non-est. - The Supreme Court and APTEL proceedings were limited to the interpretation of the PPA and did not adjudicate on the validity of the termination. - RGPPL's use of the PRAAPTI portal to enforce these "bogus" claims is an abuse of the LPS Rules.

RGPPL's Counter-Arguments: - The PPA does not permit unilateral termination. RGPPL immediately repudiated MSEDCL's termination notice. - The very grounds on which MSEDCL terminated the PPA (related to fuel source and cost) were the same issues decided in RGPPL's favor by CERC , APTEL, and the Supreme Court. - MSEDCL itself raised the termination issue in its appeal and review petition before the Supreme Court, and the dismissal of these petitions implies a rejection of this ground. Therefore, the principle of constructive res judicata applies, barring MSEDCL from re-litigating the issue. - The current petition is barred by limitation, as MSEDCL should have sought a declaration on its termination's validity within three years of RGPPL's repudiation in 2014.

CERC 's Analysis and Decision

The Commission meticulously analyzed the long history of litigation and focused on the legal principles of finality and res judicata.

Pivotal Finding on Res Judicata: The CERC observed that MSEDCL had explicitly raised the ground of PPA termination in its Civil Appeal and Review Petition before the Supreme Court. The judgment highlighted, "By raising such grounds in the civil appeal, MSEDCL had expressly sought an adjudication on the issue of PPA termination, which was rejected by the Hon’ble Court vide its order dated 9.11.2023 on merits..."

The Commission further noted that MSEDCL’s review petition specifically pleaded that the termination had attained finality. The Supreme Court's dismissal, stating there was "no error apparent on the face of the record," was interpreted by CERC as a dismissal on merits, not a summary one.

"The Hon’ble Supreme Court, in our view, cannot be understood to have left open the question of the PPA termination... The principles of constructive res judicata are squarely applicable in the present case..."

On the question of limitation, the CERC sided with RGPPL, stating that if MSEDCL believed its termination was valid, it should have sought a judicial declaration within three years of RGPPL repudiating it in 2014. Filing the petition in 2024 was, therefore, held to be barred by limitation.

Final Order and Implications

The CERC concluded that the PPA remains valid and MSEDCL is liable to pay the capacity charges as determined by the Commission's tariff orders and upheld through successive judicial forums.

Key outcomes of the order:

1. MSEDCL's petition (276/MP/2024) was dismissed as not maintainable.

2. All reliefs sought by MSEDCL, including the quashing of invoices and restraining RGPPL from using the PRAAPTI portal, were rejected.

3. The interim protection granted to MSEDCL against coercive action under the LPS Rules was discharged.

4. RGPPL is now entitled to claim its outstanding dues from MSEDCL by uploading bills on the PRAAPTI portal.

This judgment reinforces the doctrine of res judicata in regulatory proceedings and underscores that a party cannot re-agitate issues that were raised and implicitly or explicitly rejected by a higher judicial authority, including the Supreme Court. It serves as a stark reminder of the sanctity of contractual obligations and the legal finality achieved through the hierarchy of judicial review.