Electricity Market Transparency Obligations

Introduction

Electricity market transparency means that the rules, prices, transactions, market information and decision-making processes governing electricity trading should be sufficiently open, accurate and accessible to regulators and market participants. Transparency is essential because electricity markets are technically complex and involve generators, distribution companies, traders, power exchanges, system operators and consumers.

Unlike an ordinary commodity, electricity must generally be produced and consumed in real time while maintaining grid security. Electricity markets can therefore be vulnerable to information asymmetry, manipulation, insider trading, artificial scarcity and abuse of market power.

Indian electricity law addresses these concerns principally through the Electricity Act, 2003, the Central Electricity Regulatory Commission (Power Market) Regulations, 2021, regulatory orders of CERC and the rules and business procedures governing power exchanges.

The Power Market Regulations, 2021 were notified by CERC under Section 66 read with Section 178 of the Electricity Act and came into force on 15 August 2021. They establish an extensive regulatory framework governing power exchanges, market participants and the over-the-counter electricity market.

Legal and Regulatory Framework

1. Electricity Act, 2003

The Electricity Act, 2003 provides the basic statutory foundation for competitive and transparent electricity markets.

Section 66 requires the Appropriate Commission to endeavour to promote the development of a market, including trading in electricity, in accordance with the National Electricity Policy.

The purpose of electricity-market regulation is therefore not simply to permit electricity trading. The regulatory framework must ensure that the market operates efficiently, competitively and fairly.

The Act also gives CERC important regulatory functions concerning inter-State electricity trading and provides regulatory powers necessary for supervision of the electricity market.

2. CERC Power Market Regulations, 2021

The Central Electricity Regulatory Commission (Power Market) Regulations, 2021 constitute the principal regulatory framework for organised electricity markets at the national level.

They deal with matters such as:

registration and functioning of power exchanges;

market participants;

electricity contracts;

price discovery;

risk management;

clearing and settlement;

market surveillance;

prevention of market manipulation;

insider trading;

information requirements;

market monitoring; and

regulatory oversight.

The Regulations define an automated audit trail as an electronic, time-sequenced record concerning transactions, including their creation, modification or deletion, which can later be used for audit purposes.

This demonstrates that transparency extends beyond publication of electricity prices. Regulators must also be capable of reconstructing and examining market transactions.

Key Transparency Obligations

1. Transparent Price Discovery

One of the most important requirements of an organised electricity market is transparent price discovery.

Power exchanges provide electronic platforms through which electricity buyers and sellers submit bids and offers. The resulting market-clearing mechanism determines electricity prices according to the applicable market design.

The process should be neutral and rule-based so that similarly situated market participants receive equal treatment.

Transparency in price discovery helps participants understand how market prices are determined and reduces the possibility that particular participants can secretly influence the market.

2. Disclosure of Market Information

Market participants and regulators require reliable information concerning electricity demand, supply, market-clearing prices, traded quantities and congestion.

Appropriate disclosure reduces information asymmetry.

However, transparency does not mean that every piece of commercially sensitive information must immediately be disclosed publicly. The regulatory framework must distinguish between information that should be publicly available and confidential information that could facilitate manipulation if improperly disclosed.

3. Transaction Records and Audit Trails

Power exchanges must maintain adequate records of transactions.

Electronic audit trails enable regulators to reconstruct market activity and identify unusual patterns.

For example, if abnormal bidding suddenly causes electricity prices to increase, transaction records can help regulators determine whether the movement resulted from genuine scarcity or potentially manipulative conduct.

The 2021 Regulations expressly recognise automated audit trails as part of this regulatory architecture.

4. Market Surveillance

Transparency requires active surveillance rather than passive publication of information.

Under the Power Market Regulations, power exchanges have responsibilities relating to day-to-day monitoring and surveillance of transactions. CERC's market-oversight framework also provides for regulatory collection and analysis of market data.

CERC has required power exchanges, trading licensees and system operators to submit periodic data through its electronic monitoring arrangements.

The objective is to identify abnormal bidding behaviour, unusual price movements, manipulation, collusive conduct or other activities threatening market integrity.

5. Market Surveillance Committee

The regulatory framework contemplates institutional surveillance within power exchanges.

A surveillance mechanism separates ordinary commercial operations from the monitoring of suspicious trading behaviour. This strengthens the independence and credibility of the exchange.

CERC's market-oversight framework has specifically emphasised the importance of surveillance because power exchanges operate nationally, process substantial electricity transactions and must remain neutral and transparent.

6. Prevention of Market Manipulation

Transparency rules also operate as anti-manipulation rules.

Market manipulation can occur where participants attempt to create an artificial or misleading impression regarding electricity demand, supply or price.

Electricity markets are particularly sensitive because physical shortages and transmission constraints can significantly affect prices.

Regulatory monitoring therefore attempts to distinguish legitimate market behaviour from conduct designed artificially to influence prices.

7. Insider Trading and Unpublished Price-Sensitive Information

Modern electricity-market regulation also addresses misuse of confidential information.

The 2021 Regulations contain provisions concerning insider trading and unpublished price-sensitive information.

The regulatory concern is straightforward: a person possessing confidential information capable of materially influencing electricity-market prices should not obtain an unfair trading advantage from that information.

The 2021 Regulations address communication of unpublished price-sensitive information and recommendations based upon such information, subject to legitimate regulatory and operational exceptions.

This brings electricity-market governance closer to the market-integrity principles commonly associated with financial-market regulation.

8. Data Reporting to CERC

Regulatory transparency depends heavily on data.

Power exchanges and other regulated entities can be required to submit transactional and market information to CERC.

Such information allows CERC to analyse:

electricity prices;

trading volumes;

bidding behaviour;

concentration of market power;

unusual transactions;

congestion;

liquidity;

compliance with market rules; and

possible manipulation.

The regulator therefore acts not merely as a rule-making institution but also as a market-monitoring authority.

9. Transparency and Competition

Transparency supports competition because all participants should operate under predictable and non-discriminatory rules.

A market cannot function competitively if one participant receives privileged information or if the exchange discriminates among buyers and sellers.

At the same time, excessive disclosure of individual bidding strategies may itself harm competition. Electricity-market transparency therefore requires an appropriate balance between disclosure and legitimate commercial confidentiality.

10. Transparency in Power Exchange Governance

Transparency obligations also extend to institutional governance.

Power exchanges occupy a special position because they provide the infrastructure through which market transactions occur.

Their governance arrangements, ownership structure, management, technological systems, risk controls and surveillance mechanisms must therefore satisfy regulatory standards.

An exchange should operate as a neutral marketplace rather than favouring particular members or shareholders.

Case Laws

1. PTC India Ltd. v. Central Electricity Regulatory Commission (2010) 4 SCC 603

This Constitution Bench judgment of the Supreme Court is one of the most important decisions concerning CERC's regulatory authority.

The Court distinguished between regulations made by CERC under its legislative authority and regulatory or adjudicatory orders.

It recognised the broad regulatory role assigned to CERC under the Electricity Act.

Principle: Independent electricity regulation requires the Commission to possess sufficient authority to establish binding market rules. Transparency requirements imposed through valid regulations therefore form part of the statutory architecture of electricity-market governance.

2. Indian Energy Exchange Ltd. v. Central Electricity Regulatory Commission, Appeal No. 154 of 2010, APTEL

This case directly concerned the operation and regulation of a power exchange.

APTEL recorded that power exchanges provide platforms through which electricity is bought and sold and recognised the role of Section 66 of the Electricity Act in promoting power-market development.

Significantly, while considering approval of the exchange, CERC had examined matters including membership, transparency in operation and decision-making, clearing and settlement mechanisms and settlement guarantee arrangements.

Principle: Transparency is an integral regulatory characteristic of a properly functioning power exchange and not merely a voluntary commercial practice.

3. Energy Watchdog v. Central Electricity Regulatory Commission (2017) 14 SCC 80

The Supreme Court examined the regulatory jurisdiction of CERC in the context of electricity tariffs and power purchase arrangements.

Although the case was not exclusively about market transparency, it is important for understanding the breadth of CERC's regulatory responsibilities.

Principle: CERC's regulatory authority must be interpreted within the statutory framework of the Electricity Act, and electricity-market regulation can involve substantial supervisory powers necessary to implement the purposes of the Act.

4. Gujarat Urja Vikas Nigam Ltd. v. Renew Wind Energy (Rajkot) Pvt. Ltd. (2023)

The Supreme Court examined regulatory functions in the electricity sector and discussed the relationship between tariff determination and regulatory authority.

The decision reinforces that electricity regulation involves statutory responsibilities rather than ordinary contractual administration.

Principle: Regulatory commissions exercise statutory regulatory functions designed to protect the integrity and proper operation of the electricity sector.

This principle supports regulatory requirements for disclosure, monitoring and transparent market administration.

5. Tata Power Co. Ltd. Transmission v. Maharashtra Electricity Regulatory Commission (2023)

The Supreme Court considered the nature and scope of electricity regulatory powers.

The judgment recognised the importance of regulatory authority under the Electricity Act and the role of Electricity Regulatory Commissions in implementing the statutory scheme.

Principle: Electricity regulation must serve statutory objectives rather than merely the private commercial interests of individual electricity companies.

Transparency requirements are therefore legitimate regulatory mechanisms where they advance competition, accountability and consumer interests.

6. Indian Energy Exchange Ltd. v. CERC, Appeal No. 298 of 2025, APTEL, decided 13 February 2026

This recent APTEL decision concerned CERC's proposed implementation of market coupling and the regulatory framework governing power exchanges.

APTEL emphasised that the Power Market Regulations, 2021 continue to bind CERC and power exchanges. The judgment also described CERC as an electricity-market regulator carrying significant responsibilities for maintaining an independent and transparent regulatory system.

The case illustrates the close relationship between market design, price discovery, regulatory supervision and transparency.

Principle: Major changes affecting electricity-market structure must operate within the statutory and regulatory framework governing power exchanges, while the regulator remains responsible for protecting market integrity.

7. Indian Energy Exchange Ltd. v. National Load Despatch Centre, CERC (2026)

In this proceeding, CERC considered modifications to power-exchange business rules and contract specifications in light of the renewable-energy regulatory framework.

The decision illustrates that electricity contracts offered through exchanges remain subject to regulatory approval and cannot simply be designed entirely according to private commercial preference.

Principle: Regulatory oversight of exchange contracts contributes to consistency, transparency and compliance with national electricity policy.

8. Indian Energy Exchange Ltd. v. Grid Controller of India Ltd., CERC (2026)

CERC considered electricity-market contract structures and time-slot arrangements.

The regulatory approach favoured standardised national arrangements over fragmented structures where fragmentation could adversely affect liquidity, price discovery and effective market functioning.

Principle: Transparency and efficient price discovery are connected with standardised market design, adequate liquidity and objectively administered trading rules.

Transparency and Consumer Protection

Although wholesale electricity-market transparency primarily concerns generators, traders, distribution companies and exchanges, consumers ultimately benefit from it.

Transparent electricity markets can help:

reduce artificial price increases;

improve competition;

expose manipulation;

strengthen regulatory accountability;

improve efficiency of electricity procurement; and

reduce the possibility that unjustified wholesale costs are ultimately transferred to consumers.

Therefore, market transparency should also be understood as part of the broader consumer-protection function of electricity regulation.

Transparency Versus Confidentiality

Absolute transparency is neither possible nor desirable.

Electricity-market participants possess commercially sensitive information relating to bidding strategies, generation costs, contractual arrangements and operational plans.

If such information is disclosed prematurely, competitors could exploit it.

The legal objective is therefore regulated transparency rather than unrestricted disclosure.

Public-interest information should be accessible, regulators should have sufficient information to supervise the market, and confidential information should be protected unless disclosure is legally required.

Regulatory Importance of Market Transparency

Electricity-market transparency performs five major legal functions.

First, it promotes fair price discovery.

Second, it prevents information asymmetry between market participants.

Third, it assists regulators in detecting market manipulation and insider trading.

Fourth, it improves accountability of power exchanges and market operators.

Fifth, it strengthens consumer confidence and competition.

Transparency is therefore not merely an information policy. It is a central element of electricity-market integrity.

Conclusion

Electricity market transparency obligations are fundamental to the creation of a fair, competitive and reliable electricity market. Under the Electricity Act, 2003, particularly the market-development framework associated with Section 66, and the CERC Power Market Regulations, 2021, transparency is implemented through regulated price discovery, transaction records, audit trails, surveillance, information reporting, market monitoring, governance requirements and restrictions on market manipulation and insider trading.

The decisions in PTC India Ltd. v. CERC, Indian Energy Exchange Ltd. v. CERC, Energy Watchdog v. CERC, Gujarat Urja Vikas Nigam Ltd. v. Renew Wind Energy, Tata Power Co. Ltd. Transmission v. MERC, and subsequent power-market proceedings demonstrate the increasingly important role of regulatory oversight in organised electricity trading.

The central legal principle is that a competitive electricity market cannot function effectively unless price formation, exchange governance, market information and trading behaviour are subject to transparent rules and effective regulatory supervision. Transparency protects not only individual market participants but also market integrity, competition, grid reliability and ultimately electricity consumers.