1. Introduction

Electricity markets are characterised by a high degree of technical interdependence. Generation, transmission, system operation, trading, distribution and consumption occur through a single interconnected electrical system. Consequently, a failure by one participant can create financial, contractual, operational or regulatory consequences for several others.

Liability allocation in electricity law therefore concerns the legal principles used to determine which market participant must bear the consequences of a particular failure, deviation, loss, breach or system event. The principal participants include:

• generating companies;
• transmission licensees;
• distribution licensees;
• electricity traders;
• power exchanges;
• system operators and load despatch centres;
• open-access consumers;
• renewable-energy generators;
• procurers and bulk consumers; and
• sometimes aggregators and other emerging market participants.

In India, liability is distributed through a combination of the Electricity Act, 2003, CERC/SERC regulations, grid codes, PPAs, transmission agreements, open-access arrangements and commercial contracts. The regulatory framework is particularly important because the CERC's Deviation Settlement Mechanism (DSM) is expressly designed to ensure that grid users adhere to their schedules in the interests of grid security and stability. CERC

2. Meaning and Objectives of Liability Allocation

Liability allocation answers several questions:

1. Who caused the loss or deviation?
2. Who had legal and operational responsibility for preventing it?
3. Who had control over the relevant activity?
4. Was the event foreseeable and preventable?
5. Was the event caused by force majeure or another legally recognised excuse?
6. What contractual or regulatory mechanism determines compensation?
7. Should liability remain with the defaulting participant or be socialised among market participants?

The principal objectives are:

A. Risk allocation

Electricity contracts and regulations allocate particular risks to the participant best placed to manage them.

B. Grid discipline

Participants must maintain generation and consumption according to schedules. The DSM framework creates financial consequences for deviations. CERC

C. Consumer protection

Distribution licensees remain responsible for maintaining reliable supply and complying with regulatory standards.

D. Investment certainty

Generators and transmission licensees need predictable rules concerning payment, transmission charges, curtailment and contractual risks.

E. Prevention of moral hazard

A participant should generally not be able to transfer the consequences of its own controllable failure to other participants.

3. Legal Framework in India

The principal statutory foundation is the Electricity Act, 2003.

Important provisions include:

• Section 14 – licensing of transmission, distribution and trading activities;
• Section 28 – Regional Load Despatch Centres;
• Section 29 – functions of RLDCs;
• Section 32 – State Load Despatch Centres;
• Section 38 – functions of Central Transmission Utility;
• Section 39 – State Transmission Utility;
• Section 42 – duties of distribution licensees and open access;
• Section 61 – tariff principles;
• Section 62 – determination of tariff;
• Section 63 – tariff determined through competitive bidding;
• Section 73 – functions of CEA;
• Section 79 – functions of CERC;
• Section 86 – functions of State Commissions;
• Section 142 – penalties for non-compliance with Commission directions; and
• Section 146 – penalties for non-compliance with orders or directions.

The regulatory framework is supplemented by CERC regulations. As of 2026, CERC's current-regulations database records the CERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2024, together with amendments including the 2026 amendments. CERC

4. Liability of Generating Companies

A generating company may incur liability for:

• failure to generate according to schedule;
• failure to maintain declared availability;
• contractual non-performance;
• failure to comply with grid-code requirements;
• transmission-related obligations allocated to the generator;
• deviation from injection schedules;
• failure to commission generating capacity;
• environmental or statutory non-compliance; and
• breach of a PPA.

The generator's liability is not unlimited. The allocation depends upon the source of the obligation.

For example, where a PPA contains a specific risk-allocation clause, contractual provisions will ordinarily determine whether the generator or procurer bears the consequences.

5. Liability of Distribution Licensees

Distribution licensees occupy a particularly important position because they interact directly with consumers.

Their responsibilities include:

• maintaining distribution networks;
• providing electricity supply;
• complying with standards of performance;
• purchasing sufficient electricity;
• complying with scheduling and system-operation requirements;
• paying generators and transmission entities according to applicable arrangements; and
• complying with regulatory directions.

A distribution licensee may therefore face liability where its own failure causes contractual or regulatory consequences.

However, a distribution licensee cannot automatically be treated as responsible for every disturbance occurring somewhere else in the electricity system. Liability normally depends upon the specific statutory, regulatory or contractual responsibility involved.

6. Liability of Transmission Licensees

Transmission licensees are responsible for operating and maintaining transmission assets in accordance with applicable legal and regulatory requirements.

Potential liabilities include:

• failure to maintain transmission infrastructure;
• delay in commissioning transmission assets;
• failure to provide contracted transmission services;
• system losses where legally attributable;
• breach of transmission agreements; and
• regulatory non-compliance.

An important illustration is Bhopal Dhule Transmission Company Ltd. v. CERC (2025). The Appellate Tribunal considered whether transmission charges for a period before particular transmission elements were put to use could be imposed upon beneficiaries. It held that liability could be fastened upon the defaulting transmission utilities in the circumstances rather than automatically shifting the burden to beneficiaries. Indian Kanoon

This demonstrates a fundamental principle:

Liability should follow the legally identified source of responsibility rather than being automatically distributed across all electricity users.

7. Liability for Transmission Charges

Transmission-charge liability is particularly complicated because electricity transmission assets are often developed in anticipation of future generation or demand.

The courts and APTEL have therefore had to distinguish between:

• liability of the generator;
• liability of the transmission licensee;
• liability of beneficiaries;
• liability of long-term transmission customers; and
• liability arising from delay or mismatch in commissioning.

In Himachal Sorang Power Pvt. Ltd. v. CERC, APTEL considered the liability of a generating company for transmission charges associated with transmission assets developed for its use. The Tribunal recognised the regulatory principle that transmission assets created for generators/beneficiaries have to be serviced through the applicable transmission-charge mechanism. Indian Kanoon

Similarly, in Bharatiya Nabhikiya Vidyut Nigam Ltd. v. Power Grid Corporation of India Ltd., APTEL examined the consequences of early commissioning of evacuation transmission assets when the associated generating unit had not been commissioned. The Tribunal considered the statutory and regulatory allocation of responsibility between the generator and transmission licensee. Indian Kanoon

8. Liability Under the Deviation Settlement Mechanism

One of the clearest examples of liability allocation is the Deviation Settlement Mechanism.

Electricity generation and consumption must be balanced continuously. A participant that injects or draws electricity substantially different from its scheduled quantity can affect system frequency and stability.

The 2024 DSM Regulations expressly state that their objective is to establish a commercial mechanism encouraging grid users to adhere to schedules of drawal and injection in the interest of security and stability. CERC

Thus, DSM performs two functions:

Operational function → encourage grid discipline.

Financial function → assign financial consequences to deviations.

The mechanism therefore converts technical deviation into a legally enforceable financial obligation.

9. Renewable-Energy Generators

Renewable generators create distinctive liability issues because solar and wind generation is variable.

Questions include:

• Who bears forecasting errors?
• What deviation limits apply?
• Who pays deviation charges?
• How should force majeure be treated?
• Who bears the consequences of curtailment?
• What happens when grid conditions prevent scheduled injection?

CERC continues to maintain specific regulatory treatment of renewable generators within the DSM framework. Its current regulatory materials include determinations concerning the deviation percentage applicable to wind and solar sellers from April 2026. CERC

This illustrates how liability allocation increasingly incorporates technology-specific risk.

10. Liability of Electricity Traders

Electricity traders operate between sellers and buyers.

Their liability may arise from:

• failure to deliver contracted electricity;
• payment default;
• breach of trading contracts;
• violation of trading regulations;
• misrepresentation;
• failure to comply with market rules; or
• failure to honour contractual scheduling obligations.

However, a trader is not necessarily liable for every physical failure of generation or transmission. Contractual allocation and the applicable market rules determine the extent of responsibility.

11. Liability of Power Exchanges

Electricity exchanges operate organised market platforms.

Their responsibilities can include:

• maintaining market mechanisms;
• enforcing exchange rules;
• ensuring appropriate bidding and settlement systems;
• maintaining market transparency;
• managing clearing and settlement; and
• complying with CERC regulations.

The exchange's liability must therefore be distinguished from the liability of an individual buyer or seller.

A market participant's failure to perform a transaction does not necessarily mean that the exchange itself becomes responsible for the underlying physical or contractual obligation.

12. System Operators and Liability

System operators occupy a unique position because they must balance the system while simultaneously remaining institutionally distinct from commercial market participants.

RLDCs and SLDCs perform important functions concerning:

• scheduling;
• despatch;
• grid security;
• system balancing;
• monitoring;
• coordination; and
• emergency operations.

The legal allocation of responsibility is therefore sensitive to the difference between:

commercial decisions and system-operation decisions.

A system operator should not ordinarily bear the commercial risk of a generator's independent contractual default merely because it subsequently has to manage the consequences of that default.

Conversely, where a system operator fails to perform a statutory or regulatory responsibility, appropriate regulatory consequences may arise.

13. Contractual Allocation and Power Purchase Agreements

PPAs are central to electricity liability.

They ordinarily establish:

• minimum supply obligations;
• availability requirements;
• payment obligations;
• force majeure;
• change-in-law provisions;
• termination rights;
• compensation;
• scheduling;
• default mechanisms; and
• dispute-resolution procedures.

The Supreme Court has repeatedly emphasised the importance of the contractual bargain in electricity disputes.

Energy Watchdog v. CERC (2017)

In Energy Watchdog v. Central Electricity Regulatory Commission, (2017) 14 SCC 80, the Supreme Court examined force majeure and change-in-law issues arising from power-supply contracts. The Court held, importantly, that contractual force majeure relief must arise from and be examined according to the contract. Indian Kanoon

The decision is important for liability allocation because it establishes that a participant cannot simply invoke a general notion of hardship to escape an obligation. The contractual allocation of risk remains central.

14. Adani Power Cases and Fuel-Supply Risk

The litigation involving Adani Power and Gujarat Urja Vikas Nigam Ltd. provides an important illustration of risk allocation between a generator and procurer.

In Adani Power (Mundra) Ltd. v. Gujarat Electricity Regulatory Commission, the Supreme Court considered issues arising from long-term PPAs and the consequences of changes affecting the economics of generation. Indian Kanoon

A related Supreme Court judgment concerning Haryana distribution licensees and Adani Power also involved contractual allocation of risks associated with fuel and regulatory circumstances. Indian Kanoon

The broader lesson is that electricity-market liability cannot be determined simply by asking which participant ultimately suffered the economic loss. The court must examine who contractually assumed the relevant risk and whether the statutory/regulatory framework permits adjustment of that allocation.

15. Nabha Power Ltd. v. Punjab State Power Corporation Ltd.

In Nabha Power Ltd. v. Punjab State Power Corporation Ltd., the Supreme Court dealt with interpretation of a PPA arising from competitive procurement. Indian Kanoon

The case is significant because the Court examined contractual interpretation in the context of electricity procurement.

Its importance for liability allocation lies in the proposition that courts should determine the parties' rights principally through the actual contractual structure and commercial purpose, rather than rewriting the agreement merely because a different allocation might appear commercially convenient.

This protects predictability in electricity markets.

16. PTC India Ltd. v. CERC

The Constitution Bench decision in PTC India Ltd. v. Central Electricity Regulatory Commission, (2010) 4 SCC 603, is fundamental to understanding regulatory liability.

The Supreme Court examined the nature of CERC's delegated legislative power under Section 178 of the Electricity Act and the relationship between regulations and the appellate/judicial-review framework. Indian Kanoon

The significance for liability allocation is that market participants operate within a regulatory architecture created under statutory authority. Their obligations are therefore not merely private contractual obligations; many are products of delegated legislation.

17. Force Majeure and Liability

Force majeure is one of the most important mechanisms for determining whether liability should remain with a participant.

Typical events include:

• natural disasters;
• war;
• governmental action;
• unforeseen regulatory restrictions;
• extraordinary infrastructure failures; and
• other events expressly recognised by the contract.

However, Energy Watchdog demonstrates that the precise contractual wording matters. The Supreme Court treated contractual force majeure as a matter governed by the parties' agreement. Indian Kanoon

Therefore:

Ordinary commercial difficulty ≠ automatically force majeure.

Unexpected event ≠ automatically exemption from liability.

The event must satisfy the applicable contractual and legal requirements.

18. Causation as a Principle of Liability Allocation

A useful analytical framework is:

Step 1 — Identify the event

For example:

Generator fails to inject 500 MW.

Step 2 — Identify the responsible participant

Was the failure caused by:

• generator equipment failure?
• transmission congestion?
• system operator instruction?
• fuel shortage?
• force majeure?
• procurer's failure to pay?

Step 3 — Identify the governing instrument

The answer may lie in:

• Electricity Act;
• CERC regulations;
• Grid Code;
• PPA;
• transmission agreement;
• open-access agreement; or
• market rules.

Step 4 — Establish causation

The participant should generally be liable only for consequences legally connected with the relevant breach or responsibility.

Step 5 — Calculate the remedy

Possible remedies include:

• deviation charges;
• compensation;
• damages;
• late-payment surcharge;
• restitution;
• tariff adjustment;
• contractual termination; or
• regulatory penalty.

19. Liability Versus Risk Allocation

A crucial distinction exists between liability and risk.

Liability

Liability generally arises after an obligation has been breached or a legally attributable event has occurred.

Risk allocation

Risk allocation determines in advance who bears the economic consequences of an uncertain event.

For example:

A PPA may allocate fuel-price risk to the generator.

That does not necessarily mean the generator has committed a legal wrong. It means that, under the contract, the economic consequences of the event fall upon the generator.

This distinction is essential in electricity regulation.

20. Direct Liability and Socialised Liability

Electricity law sometimes employs mechanisms where costs are not borne exclusively by the participant causing the event.

Examples include certain:

• transmission-charge mechanisms;
• ancillary-service mechanisms;
• system-balancing arrangements;
• market-wide settlement mechanisms; and
• public-service obligations.

The justification is that electricity networks are interconnected and some costs are genuinely systemic.

However, excessive socialisation can create moral hazard because participants may have reduced incentives to prevent failures.

Consequently, modern electricity regulation attempts to balance:

causation + controllability + ability to manage risk + system-wide interests.

21. Liability During Grid Emergencies

Electricity emergencies create particularly difficult questions.

Suppose a major generator suddenly fails.

The consequences may spread across:

Generator → Transmission network → RLDC → DISCOM → Consumers

The law therefore distinguishes between:

1. the participant causing the initial event;
2. participants required to respond to the event; and
3. participants suffering consequential losses.

A participant that suffers a consequence is not necessarily legally responsible for the event.

This is one of the central reasons why electricity law uses specialised scheduling, despatch and settlement mechanisms.

22. Liability for Transmission-Asset Delays

Transmission projects frequently involve multiple parties.

For example:

Generator → CTU/Transmission Licensee → Beneficiary → Consumer

If a generator is delayed, the transmission asset may nevertheless become available.

Conversely, if the transmission licensee delays construction, a commissioned generator may be unable to evacuate power.

Liability therefore depends upon the contractual and regulatory allocation of the commissioning and construction risks.

The Bharatiya Nabhikiya Vidyut Nigam case illustrates the importance of identifying which participant caused the mismatch between generating-unit commissioning and transmission-asset availability. Indian Kanoon

23. Jurisdiction and Dispute Resolution

Liability disputes may be dealt with by:

• CERC;
• State Electricity Regulatory Commissions;
• Appellate Tribunal for Electricity;
• arbitration;
• commercial courts, depending upon the nature of the dispute; and
• the Supreme Court.

Section 79 jurisdiction is particularly important for disputes involving generating companies and transmission licensees falling within the statutory jurisdiction of CERC.

A recent 2026 APTEL decision concerning Gujarat Urja Vikas Nigam Ltd. v. Tata Power Co. Ltd. discussed the scope of CERC's Section 79(1)(f) jurisdiction and recognised that a dispute may fall within CERC jurisdiction where it involves a generating company or transmission licensee and concerns matters falling within the relevant statutory clauses. Indian Kanoon

24. Emerging Liability Questions

Electricity markets are undergoing major technological changes. Liability allocation is consequently expanding beyond traditional generators and utilities.

Important emerging areas include:

A. Battery energy storage

Questions include responsibility for:

• charging deviations;
• discharge failures;
• battery degradation;
• grid-support commitments; and
• safety incidents.

B. Virtual power plants

Aggregators may coordinate hundreds of distributed resources, creating questions about whether liability should rest with:

• individual resource owners;
• aggregators; or
• both.

C. Artificial intelligence

AI-controlled electricity systems raise questions concerning:

• algorithmic errors;
• automated bidding;
• forecasting errors;
• cyber incidents; and
• responsibility for autonomous decisions.

D. Distributed generation

Rooftop solar and prosumers complicate the traditional distinction between consumer and generator.

E. Demand-response participants

Consumers may become market participants by reducing consumption when requested by the system.

25. Principles Emerging from Case Law

The Indian electricity cases collectively demonstrate several important principles.

26. Major Case Laws at a Glance

1. PTC India Ltd. v. CERC, (2010) 4 SCC 603

Established important principles concerning CERC's delegated legislative powers and the legal status of electricity regulations. Indian Kanoon

2. Energy Watchdog v. CERC, (2017) 14 SCC 80

Important for contractual force majeure, change in law and risk allocation under PPAs. Indian Kanoon

3. Nabha Power Ltd. v. PSPCL, (2018-related proceedings; Supreme Court judgment in 2017)

Important for interpretation of PPAs and contractual allocation of obligations in competitive electricity procurement. Indian Kanoon

4. Adani Power (Mundra) Ltd. v. GERC, 2 July 2019

Important for PPA obligations and allocation of economic/regulatory risks between generators and procurers. Indian Kanoon

5. Uttar Haryana Bijli Vitran Nigam Ltd. v. Adani Power Ltd., 25 February 2019

Examined disputes between distribution licensees/procurers and a generating company concerning PPA obligations and regulatory consequences. Indian Kanoon

6. Himachal Sorang Power Pvt. Ltd. v. CERC, APTEL

Illustrates allocation of transmission-charge responsibility associated with generation and transmission infrastructure. Indian Kanoon

7. Bharatiya Nabhikiya Vidyut Nigam Ltd. v. Power Grid Corporation of India Ltd.

Illustrates liability arising from mismatch between generator commissioning and transmission-asset commissioning. Indian Kanoon

8. Bhopal Dhule Transmission Company Ltd. v. CERC, 11 December 2025

Illustrates the principle that transmission-charge liability for a mismatch period should not automatically be shifted to beneficiaries where responsibility lies with defaulting transmission utilities. Indian Kanoon

27. Critical Evaluation

The central difficulty in electricity liability law is that electricity markets are interconnected while legal responsibility is fragmented.

A generator may cause a deviation, but the consequences may affect:

• transmission systems,
• balancing authorities,
• distribution companies,
• traders,
• consumers and
• the wider electricity market.

A purely contractual approach is therefore insufficient. Conversely, a purely system-wide approach can unfairly socialise the consequences of individual defaults.

The most coherent approach combines:

(1) statutory responsibility +
(2) contractual allocation +
(3) causation +
(4) controllability +
(5) regulatory settlement +
(6) system reliability considerations.

The DSM framework is an important example of this approach because it converts deviations from scheduled injection or drawal into a structured commercial settlement mechanism rather than leaving every consequence to ordinary private litigation. CERC

28. Conclusion

Liability allocation among electricity market participants is a foundational component of modern electricity law. It determines how financial, operational and legal consequences are distributed among generators, transmission licensees, distribution companies, traders, system operators and consumers.

Indian electricity law does not adopt a single universal rule of liability. Instead, responsibility emerges from the interaction of the Electricity Act, regulatory instruments, grid codes, PPAs, transmission arrangements and market mechanisms.

The case law, particularly PTC India, Energy Watchdog, Nabha Power, Adani Power and the transmission-liability decisions, demonstrates that courts generally examine the precise statutory and contractual framework before determining responsibility. Indian Kanoon

The future challenge will be to adapt this framework to renewable-energy variability, battery storage, demand response, distributed generation, aggregators, AI-controlled systems and increasingly decentralised electricity markets. Effective liability rules must preserve grid reliability while ensuring that risks are allocated to the participants who are legally responsible and best positioned to manage them.