1. Introduction

Wholesale electricity markets are institutional arrangements through which electricity is bought and sold between generators, distribution licensees, electricity traders, power exchanges, market operators and other eligible participants before electricity reaches final consumers. Unlike ordinary commodity markets, electricity cannot generally be stored economically at large scale and generation and consumption must remain continuously balanced. Consequently, wholesale electricity markets require strong legal and institutional governance.

In India, governance of wholesale electricity markets is principally structured by the Electricity Act, 2003, the Central Electricity Regulatory Commission (CERC), the Central Electricity Authority (CEA), Grid-India and licensed electricity traders and power exchanges. CERC's regulatory framework includes the Power Market Regulations, 2021, which govern power exchanges, trading arrangements, market participants, contracts, risk management and market coupling. (CERC)

The central objective is not simply to facilitate electricity trading. Governance must simultaneously protect competition, grid security, market integrity, consumer interests, transparency, reliability and efficient price discovery.

2. Meaning of Wholesale Electricity Market Institutions

Wholesale electricity market institutions are the organisations and regulatory mechanisms responsible for organising and supervising transactions in the electricity market.

Important institutions include:

Central Electricity Regulatory Commission (CERC)

Power exchanges

Electricity traders

Grid-India / system and market-operating institutions

Generating companies

Distribution licensees

Transmission utilities

Market participants and consumers with permitted market access

Appellate Tribunal for Electricity (APTEL)

Courts exercising constitutional and judicial-review jurisdiction

These institutions perform different functions. CERC establishes regulatory rules and supervises the inter-State electricity market; exchanges provide organised platforms for transactions; traders facilitate bilateral transactions; and system operators coordinate physical electricity flows with commercial transactions.

3. Statutory Foundation

The Electricity Act, 2003 created a framework for restructuring India's electricity sector around competition and independent regulation.

Section 66 – Development of the electricity market

Section 66 is particularly important because it requires appropriate measures for developing the electricity market in accordance with the National Electricity Policy.

The provision provides the statutory foundation for developing organised electricity markets rather than leaving wholesale trading entirely to bilateral contractual arrangements.

Section 79 – Functions of CERC

CERC has important jurisdiction over:

regulation of inter-State transmission;

regulation of tariff in specified circumstances;

licensing of inter-State transmission and trading;

regulation of inter-State electricity operations;

specifying the Grid Code;

fixing trading margins where considered necessary;

adjudication of disputes falling within its statutory jurisdiction.

The Supreme Court has emphasised that the Electricity Act creates a distinction between the regulatory responsibilities of the Central Commission concerning inter-State electricity activities and those of State Commissions concerning intra-State matters. (Indian Kanoon)

Section 178 – Regulation-making power

CERC can make regulations within the authority delegated by the Electricity Act. This is extremely important for wholesale-market governance because market rules need to address technical and commercial matters that cannot realistically be specified exhaustively in the parent legislation.

The Supreme Court's Constitution Bench decision in PTC India Ltd. v. CERC established the constitutional and administrative-law significance of this regulatory power. (Indian Kanoon)

4. Role of CERC in Wholesale Market Governance

CERC is the central regulatory institution for India's inter-State electricity market.

Its governance functions include:

A. Market regulation

CERC establishes rules concerning how electricity can be traded and how market participants must operate.

B. Licensing

Inter-State electricity trading requires regulatory oversight. Licensing requirements help ensure that entities participating in wholesale electricity transactions satisfy statutory requirements.

C. Trading margins

CERC may regulate trading margins where necessary. This is particularly significant because excessive margins can distort wholesale transactions and ultimately affect electricity prices.

D. Power exchanges

Power exchanges operate within the regulatory framework established by CERC. The Power Market Regulations regulate important aspects of exchange operations, including transaction fees, contracts, risk-management mechanisms and market procedures. (Indian Kanoon)

E. Market surveillance

Modern wholesale-market governance increasingly requires monitoring of:

unusual bidding;

market concentration;

manipulation;

withholding of generation;

artificial scarcity;

transmission congestion;

excessive pricing;

conflicts of interest.

CERC itself has examined regulatory oversight of bidding behaviour in power exchanges through a dedicated staff paper. (CERC)

5. Power Exchanges as Market Institutions

Power exchanges are central institutions in modern wholesale electricity markets.

They provide organised mechanisms through which buyers and sellers can submit bids and offers. The exchange's algorithm then determines transactions according to applicable market rules.

The principal advantages include:

transparent price discovery;

standardised contracts;

anonymous or structured bidding;

greater liquidity;

reduction of bilateral transaction costs;

improved access to market information.

However, exchanges also create governance challenges.

For example, an exchange can become commercially powerful if a large portion of market liquidity is concentrated on it. Governance therefore has to balance competition between exchanges with efficient market coupling and uniform price discovery.

6. Market Coupling

One of the most important recent developments in wholesale electricity governance is market coupling.

Under market coupling, bids from different power exchanges can be integrated into a common market-clearing mechanism so that transmission capacity and electricity demand can be considered collectively.

The CERC Power Market Regulations, 2021 identify three principal objectives of market coupling:

discovery of a uniform market-clearing price;

optimal utilisation of transmission infrastructure; and

maximisation of economic surplus. (CERC)

CERC initiated a phased process concerning market coupling following shadow-pilot exercises involving the Day Ahead Market and Real-Time Market. (CERC)

This illustrates an important principle of institutional governance: market design must evolve as the electricity system becomes more interconnected and technologically sophisticated.

7. Case Law: PTC India Ltd. v. CERC

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

This is one of the most important cases concerning electricity-market governance in India.

The dispute concerned CERC's authority to regulate trading margins through regulations.

The Supreme Court distinguished between:

regulatory decision-making under Section 79, and

regulation-making under Section 178.

The Court held that regulations made under Section 178 constitute subordinate legislation and can have general application to regulated entities. It also recognised that CERC performs both decision-making and regulation-making functions. (Indian Kanoon)

Significance

The judgment establishes that wholesale electricity governance cannot be understood merely as administrative supervision. CERC also performs a form of delegated legislative function, creating general rules for market participants.

This is fundamental to market stability because wholesale electricity transactions involve thousands of recurring commercial interactions. Individual orders cannot substitute for a coherent regulatory framework.

8. Case Law: State of A.P. v. NTPC

State of Andhra Pradesh v. National Thermal Power Corporation Ltd., (2002) 5 SCC 203

This Supreme Court judgment concerned the interstate sale of electricity.

The Court examined when a transaction involving electricity constitutes an inter-State sale and held that where electricity is sold pursuant to contracts involving inter-State movement, State-level taxation cannot override the constitutional allocation of legislative power concerning inter-State trade. (Indian Kanoon)

Importance for wholesale markets

The case predates the Electricity Act, 2003 but remains important for understanding the constitutional dimension of inter-State electricity transactions.

Wholesale electricity markets increasingly involve transactions crossing State boundaries. Therefore, governance requires a clear allocation of authority between:

Union institutions;

Central regulators;

State institutions; and

State electricity regulators.

9. Case Law: Energy Watchdog v. CERC

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

This Supreme Court judgment is highly significant for the relationship between contractual arrangements and electricity regulation.

The Court emphasised that the Electricity Act must be read as an integrated statutory framework. In the context of inter-State generation and supply, the Central Commission has important regulatory jurisdiction under Section 79. (Indian Kanoon)

The judgment also recognised that regulatory powers under the Act can operate alongside contractual arrangements such as power purchase agreements.

Governance significance

Wholesale markets are not governed exclusively by contracts.

Instead, there exists a hierarchy:

Statute → Regulations → Regulatory orders → Market rules/contracts

A market participant cannot treat a private contract as completely insulated from the statutory regulatory framework.

10. India Energy Exchange Ltd. v. CERC – Market Coupling

A particularly important contemporary development is the 2026 APTEL decision in India Energy Exchange Ltd. v. CERC.

The case concerned CERC's decision regarding implementation of market coupling and raised questions concerning:

the regulatory basis for market coupling;

market structure;

effects on competing power exchanges;

regulatory procedure;

stakeholder objections;

market efficiency; and

interpretation of the Power Market Regulations, 2021. (Indian Kanoon)

The case demonstrates that wholesale-market governance has moved beyond traditional questions of tariff and licensing into sophisticated questions of market architecture and institutional design.

It is therefore important for understanding the modern evolution of Indian electricity-market regulation.

11. Governance of Market Integrity

Wholesale electricity markets are particularly vulnerable to market-power problems.

Possible risks include:

manipulation of bids;

strategic withholding of electricity;

creation of artificial scarcity;

coordinated bidding;

excessive concentration;

discriminatory access;

misleading market information.

Consequently, governance requires effective:

Transparency

Market participants should have access to reliable information concerning prices, market volumes, transmission constraints and applicable rules.

Accountability

Regulatory decisions should be reasoned and capable of legal scrutiny.

Non-discrimination

Market institutions should not arbitrarily favour one category of market participant.

Surveillance

Regulators must have mechanisms to detect abnormal bidding and trading patterns.

Enforcement

Rules without effective enforcement cannot protect market integrity.

12. Governance of Risk

Wholesale electricity markets contain several categories of risk:

Commercial risk

A buyer or seller may fail to meet contractual obligations.

Price risk

Spot electricity prices can fluctuate substantially.

Credit risk

A market participant may default on payment.

Transmission risk

Congestion can prevent electricity from physically flowing according to commercial expectations.

System-security risk

A commercial transaction may have consequences for the stability of the electricity grid.

Therefore, the Power Market Regulations incorporate mechanisms concerning risk management, margining and settlement. Power-exchange contracts are required to specify appropriate risk-management and settlement mechanisms. (Indian Kanoon)

13. Institutional Independence

Effective wholesale-market governance requires regulators to operate independently from market participants.

If a regulator becomes excessively dependent on:

government-owned generators,

private generators,

distribution companies,

trading companies, or

power exchanges,

regulatory neutrality can be compromised.

At the same time, independence must be accompanied by accountability.

CERC decisions are subject to statutory and constitutional mechanisms of review, while regulatory regulations can be challenged through judicial-review mechanisms. The Supreme Court's decision in PTC India is particularly important in explaining this distinction. (Indian Kanoon)

14. Institutional Coordination

Wholesale electricity markets cannot function through CERC alone.

They require coordination between:

CERC → Grid-India/system operation → transmission institutions → power exchanges → traders → generators → distribution licensees

For example, a power exchange may commercially match electricity bids, but the resulting electricity must still be physically accommodated by the transmission and system-operation infrastructure.

This creates an important legal principle:

Commercial market governance and physical-grid governance must operate together.

An electricity market transaction is therefore simultaneously a commercial event and a physical-system event.

15. Challenges in Wholesale Electricity Market Governance

Major challenges include:

1. Market concentration

A small number of exchanges or traders may control significant liquidity.

2. Market manipulation

Sophisticated algorithms can create new forms of strategic bidding.

3. Renewable-energy variability

Solar and wind generation create uncertainty and increase the importance of short-term markets.

4. Transmission congestion

Physical network constraints can affect market prices.

5. Storage

Battery storage introduces new market participants capable of acting as both buyers and sellers.

6. Artificial intelligence

Algorithmic bidding creates new regulatory questions concerning responsibility, transparency and coordinated behaviour.

7. Market coupling

Integration of multiple exchanges raises questions concerning competition, governance and price discovery.

8. Consumer protection

Wholesale prices ultimately affect distribution costs and, indirectly, retail consumers.

16. Principles of Good Wholesale-Market Governance

A legally sound wholesale electricity market should be based on:

Transparency

Competition

Non-discriminatory market access

Independent regulation

Grid security

Efficient price discovery

Consumer protection

Regulatory predictability

Effective market surveillance

Reasoned regulatory decision-making

Accountability

Adaptability to technological change

These principles must be balanced rather than pursued in isolation.

For example, maximum competition without adequate grid-security rules could threaten reliability, while excessive regulation could reduce market liquidity and innovation.

17. Conclusion

Governance of wholesale electricity market institutions represents the intersection of energy law, administrative law, competition principles, economic regulation and electricity-system engineering.

In India, the Electricity Act, 2003 provides the basic statutory architecture, while CERC develops detailed rules governing inter-State electricity trading and organised power markets. The Power Market Regulations, 2021 provide a particularly important institutional framework for power exchanges, market participants, contracts, risk management and market coupling. (CERC)

The jurisprudence of PTC India Ltd. v. CERC, State of A.P. v. NTPC, and Energy Watchdog v. CERC demonstrates that electricity-market governance involves more than contractual freedom: it requires a legally structured regulatory system capable of coordinating competing commercial interests with public objectives and system security. (Indian Kanoon)

The recent litigation surrounding market coupling shows that the next phase of wholesale-market governance will increasingly concern market architecture, algorithmic price discovery, transmission optimisation, exchange competition and technological transformation. (Indian Kanoon)

Ultimately, effective governance requires a combination of independent institutions, clear statutory authority, transparent market rules, robust surveillance, procedural fairness and judicial accountability. This enables wholesale electricity markets to function not merely as trading platforms, but as legally governed institutions supporting reliability, efficiency and the wider public interest.