1. Introduction

South Asian Power Market Integration refers to the legal, institutional, technical and commercial arrangements through which countries in South Asia exchange electricity, coordinate their power systems and gradually develop a more interconnected regional electricity market.

The principal countries involved are India, Bangladesh, Nepal, Bhutan, Pakistan, Sri Lanka and the Maldives. Their energy resources differ significantly. Nepal and Bhutan possess substantial hydropower potential, India has a large and diversified electricity system, Bangladesh has historically depended heavily on natural gas and imported electricity, and Sri Lanka has considerable hydropower and renewable-energy resources.

Regional electricity integration can help these countries use their resources more efficiently, reduce supply shortages, support renewable energy development and improve energy security. However, it also raises difficult questions concerning sovereignty, electricity pricing, cross-border transmission, regulatory jurisdiction, environmental protection and dispute settlement.

The central legal issue is how sovereign states can create a reliable and economically beneficial regional electricity market without compromising national energy security or public accountability.

Unlike the European Union, South Asia does not have a single supranational electricity regulator or a fully harmonised regional electricity market. Integration instead operates through bilateral agreements, domestic electricity legislation, cross-border trading rules, regional cooperation initiatives and intergovernmental institutions.

2. Meaning and scope of power market integration

Power market integration involves more than the physical transmission of electricity across national borders. It includes several interconnected dimensions.

Physical integration

Interconnecting national electricity grids through transmission lines, substations and cross-border links so that electricity can flow between countries.

Regulatory integration

Aligning technical standards, grid codes, licensing requirements, transmission access rules and cross-border electricity-trading regulations.

Commercial integration

Developing compatible electricity markets, competitive bidding, power purchase agreements (PPAs), transmission charges and settlement mechanisms.

Institutional integration

Creating mechanisms for system coordination, data sharing, emergency assistance, dispute resolution and regulatory cooperation.

These dimensions are mutually dependent. A transmission line alone does not create a functioning regional market if the participating countries lack compatible operating rules, enforceable contracts or agreed procedures for managing congestion and payment defaults.

3. Legal and institutional framework in South Asia

A. Bilateral electricity-trade agreements

Bilateral agreements are the principal legal foundation of much of South Asia's existing electricity trade. They establish the terms under which one country supplies electricity to another, including price, duration, transmission arrangements, payment obligations and operational responsibilities.

Examples include:

India–Nepal electricity cooperation and cross-border power trading.

India–Bhutan hydropower development and electricity purchase arrangements.

India–Bangladesh cross-border electricity supply.

Electricity trade between Nepal and Bangladesh using India's transmission network.

Bilateral arrangements offer flexibility because each pair of countries can negotiate terms suited to its energy resources and political circumstances. Their weakness is fragmentation: different contracts, pricing structures and technical requirements may make the development of a unified regional market more difficult.

B. Domestic electricity legislation

Domestic law determines which authorities can approve cross-border electricity trading, license market participants, regulate transmission networks and enforce relevant obligations.

In India, important legislation includes:

Electricity Act, 2003: Establishes the framework for generation, transmission, distribution, trading and electricity regulation.

Section 79: Gives the Central Electricity Regulatory Commission (CERC) functions that include regulation of interstate transmission and specified categories of electricity trading.

Section 86: Establishes functions of State Electricity Regulatory Commissions, including state-level regulatory responsibilities.

Section 66: Encourages the development of an electricity market, subject to the statutory framework.

Section 121: Provides for appellate supervision of certain regulatory decisions by the Appellate Tribunal for Electricity.

Cross-border trade also depends on applicable government policies, CERC regulations and directions, transmission procedures and the legal terms of individual agreements.

In Nepal, Bangladesh, Bhutan and other participating countries, domestic electricity laws and regulatory arrangements govern generation, transmission, licensing and the authority to enter electricity transactions. International agreements do not automatically eliminate the need to comply with relevant domestic law.

C. India's Cross Border Trade of Electricity framework

India plays a central role because its transmission network connects several neighbouring power systems and provides a route for certain transactions between third countries.

The Guidelines for Import/Export (Cross Border) of Electricity, 2018, issued by India's Ministry of Power, and the subsequent regulatory framework established by CERC are important components of this system. The applicable framework has been updated over time, so the version and amendments relevant to a particular transaction must be checked.

These rules address matters such as eligibility of entities, approval of transactions, designated authorities, transmission access and operational coordination.

A key legal tension is that India must facilitate regional trade while retaining the ability to assess national security, grid reliability and the suitability of market participants.

D. Regional cooperation institutions

The South Asian Association for Regional Cooperation (SAARC) has supported regional energy cooperation, including the SAARC Framework Agreement for Energy Cooperation (Electricity), signed in 2014.

The agreement seeks to facilitate electricity trade through bilateral, trilateral and regional arrangements, subject to national laws and mutually agreed terms.

Other relevant platforms include the South Asia Subregional Economic Cooperation (SASEC) programme and the South Asia Regional Initiative for Energy Integration (SARI/EI). These initiatives have supported research, technical cooperation, policy dialogue and infrastructure development.

However, regional cooperation initiatives should not be confused with a binding supranational market regulator. South Asia still relies heavily on national institutions and negotiated agreements.

4. Major case laws relevant to South Asian power market integration

South Asia has relatively limited judicial precedent directly establishing a unified regional electricity market. Consequently, the most useful case laws concern cross-border electricity trading, regulatory jurisdiction, contractual obligations, electricity tariffs and the powers of regulators.

Case 1: Power Trading Corporation of India Ltd. v. Central Electricity Regulatory Commission (2009)

Citation: Appeal No. 15 of 2009, Appellate Tribunal for Electricity, decision dated 18 February 2009.

Indian Kanoon

Facts: The dispute concerned electricity purchased from Bhutanese hydropower projects and sold to Indian electricity consumers. Power Trading Corporation of India (PTC) challenged the Central Electricity Regulatory Commission's authority in relation to trading arrangements involving electricity purchased under bilateral agreements between the Indian and Bhutanese governments.

Legal issue: To what extent could the domestic electricity regulator exercise jurisdiction over electricity trading arrangements connected with international agreements?

Legal significance: The case illustrates the tension between government-to-government electricity agreements and statutory regulatory authority under India's Electricity Act, 2003. It raises questions about trading margins, the legal character of international transactions and the relationship between executive policy and regulatory powers.

Relevance to regional integration: Regional power trade requires a clear allocation of authority between governments, regulators and commercial traders. If the applicable jurisdiction and pricing rules are uncertain, cross-border projects may face regulatory disputes and investment risks.

Important qualification: The dispute should not be read as establishing that all international electricity transactions are exempt from domestic regulation. Its implications must be assessed in light of the statutory framework applicable to the transaction and subsequent regulatory developments.

Case 2: M/s Sembcorp Energy India Ltd. v. State of Andhra Pradesh (2022)

Court: High Court of Andhra Pradesh, decision dated 26 August 2022.

Indian Kanoon

Facts: Sembcorp supplied 250 MW of electricity to the Bangladesh Power Development Board under a power purchase arrangement. Electricity generated in India entered the domestic transmission system and was delivered through the India–Bangladesh interconnection. The dispute involved the tax treatment of electricity supplied under the cross-border arrangement, including claims relating to GST refunds.

Legal issue: How should electricity supplied under an international power purchase agreement be treated under domestic tax law, given the contractual and physical arrangements for delivery?

Legal significance: The case demonstrates that international electricity trade involves more than energy regulation. Tax law, contractual documentation, metering arrangements, delivery points and evidence of cross-border supply can materially affect the commercial viability of a transaction.

Relevance to regional integration: A regional electricity market requires predictable tax treatment and consistent documentation of electricity flows. Uncertainty concerning refunds, exemptions or the characterisation of a supply can increase transaction costs and discourage market participation.

Caution: The case arose from particular tax-refund disputes. It should not be treated as a general declaration that all electricity exports qualify for a particular GST treatment. The precise statutory provisions and subsequent tax-law developments must be examined before applying it to another transaction.

Case 3: Energy Watchdog v. Central Electricity Regulatory Commission (2017)

Citation: (2017) 14 SCC 80, Supreme Court of India.

Facts: The case concerned disputes arising from power purchase agreements and increased coal prices affecting the ability of generating companies to perform their contractual obligations.

Legal issue: Whether changes in fuel costs and related circumstances justified relief under contractual force majeure provisions or the doctrine of frustration under Section 56 of the Indian Contract Act, 1872.

Judgment and principle: The Supreme Court examined the contractual allocation of risks and distinguished contractual force majeure from frustration under Section 56. A commercial difficulty does not automatically justify relief; the terms of the agreement and the applicable legal requirements must be satisfied.

Relevance to regional power markets: Cross-border power purchase agreements must address fuel-price volatility, changes in law, transmission failures, political disruptions, curtailment and force majeure. Energy Watchdog provides an important domestic-law framework for analysing contractual risk allocation, although it was not itself a regional market integration case.

Case 4: Gujarat Urja Vikas Nigam Ltd. v. Essar Power Ltd. (2008)

Citation: (2008) 4 SCC 755, Supreme Court of India.

Legal principle: The case addresses the statutory jurisdiction of electricity regulatory commissions in disputes involving electricity-sector licensees and generating companies, in the context of the Electricity Act, 2003.

Relevance to regional integration: Cross-border electricity contracts may involve generators, traders, transmission operators and public utilities. Identifying the competent forum and the scope of its statutory jurisdiction is essential for enforceable contracts and predictable dispute resolution.

The case is relevant by analogy to the allocation of regulatory and adjudicatory powers, but it does not itself establish a regional cross-border trading regime.

Case 5: PTC India Ltd. v. Central Electricity Regulatory Commission (2010)

Citation: (2010) 4 SCC 603, Supreme Court of India.

Legal issue: The relationship between regulations made by the CERC and the Appellate Tribunal for Electricity's power to review regulatory decisions.

Judgment and principle: The Supreme Court distinguished subordinate legislation made by a regulator from orders passed in the exercise of its regulatory functions. It held that the Tribunal could not use its appellate jurisdiction to invalidate regulations in the same manner as an appeal against an individual order.

Relevance to regional integration: Cross-border electricity markets depend on stable regulations governing trading, transmission access, scheduling and settlement. The case highlights the importance of respecting statutory rule-making procedures and identifying the proper legal route for challenging regulatory measures.

Comparative summary of the cases

These decisions provide legal principles relevant to regional integration, but they should be distinguished from judgments that directly interpret a regional electricity treaty. The latter remain comparatively scarce in South Asia.

5. Practical operation of the regional electricity market

South Asian electricity integration can be understood through a transaction involving three countries.

Nepal

Hydropower generation and electricity export

India

Transmission access, system operation and applicable regulatory approvals

Bangladesh

Electricity purchase and consumption

Illustrative transaction structure; actual electricity flows depend on scheduling, grid conditions and approved arrangements.

A transaction of this kind requires several legal steps:

Commercial agreement: The buyer and seller agree on price, quantity, duration, delivery conditions and payment.

Regulatory approval: The transaction receives the approvals required under the applicable domestic and cross-border trading framework.

Transmission arrangements: The parties establish access to the necessary national and cross-border transmission networks.

Scheduling and dispatch: The relevant system operators coordinate the amount and timing of electricity delivery.

Metering and accounting: Electricity quantities, transmission losses and deviations are measured and settled.

Payment and dispute resolution: The buyer pays according to the contract, and disputes are handled through the agreed legal mechanisms.

The Nepal–India–Bangladesh arrangement demonstrates the practical significance of this framework. In June 2025, Nepal commenced seasonal electricity exports of 40 MW to Bangladesh through India's transmission network, following a trilateral arrangement. This was an important development beyond conventional bilateral trading.

Orf Online

6. Major legal challenges

A. Sovereignty and national security

Electricity is a strategic resource. Governments may restrict transactions involving particular generating companies, fuel sources or foreign participants because of national security concerns.

The challenge is to balance national sovereignty with predictable market access. If approval decisions are opaque or inconsistent, investors may face uncertainty even when the underlying project is technically feasible.

Legal solution: Establish transparent eligibility criteria, published approval procedures, reasoned decisions and review mechanisms, while preserving legitimate national-security safeguards.

B. Regulatory harmonisation

Countries may have different rules governing licensing, tariffs, grid stability, renewable energy, electricity trading and environmental approvals.

These differences can increase compliance costs and complicate transactions involving multiple jurisdictions.

Legal solution: Develop common minimum standards for cross-border trading, metering, transmission access, scheduling and settlement without requiring every country to adopt identical domestic laws.

C. Transmission access and congestion

Cross-border electricity trade depends on sufficient transmission capacity. A commercially agreed transaction may still be restricted by congestion, maintenance requirements or grid-security limits.

India's role as a transit country makes transparent capacity-allocation rules particularly important.

Legal solution: Adopt clear procedures for transmission capacity allocation, congestion management, curtailment, compensation where applicable and publication of available transfer capacity.

D. Contract enforcement and political risk

Long-term hydropower projects frequently require substantial capital investment and depend on power purchase agreements lasting many years.

Changes in government policy, currency restrictions, payment delays, disputes over pricing and geopolitical tensions may affect performance.

Legal solution: Contracts should include clear change-in-law clauses, payment security, force majeure provisions, dispute-resolution mechanisms, termination rights and rules governing compensation.

E. Environmental and social justice

Regional hydropower development may affect river ecosystems, forests, Indigenous Peoples and local communities. Cross-border electricity trade can distribute economic benefits unevenly, especially when electricity-producing communities bear environmental costs while consumers elsewhere receive the principal benefits.

Legal solution: Apply environmental impact assessment requirements, meaningful public participation, appropriate rehabilitation measures and transparent benefit-sharing arrangements under the applicable national and international legal frameworks.

F. Renewable energy integration

Hydropower from Nepal and Bhutan can potentially complement solar and wind generation in India and Bangladesh. However, renewable output varies with seasons, weather and hydrological conditions.

Legal solution: Develop flexible power contracts, storage arrangements, coordinated forecasting, balancing services and common procedures for managing renewable-energy variability.

7. International legal principles

Regional electricity integration is also influenced by broader principles of international law.

Sovereign equality: Each participating state retains its legal sovereignty and its authority over domestic energy policy, subject to applicable treaty obligations.

Good-faith performance of treaties: States must perform binding treaty obligations in good faith. This principle supports the credibility of regional cooperation agreements.

Peaceful dispute settlement: Disputes should be addressed through negotiation, mediation, arbitration or other agreed mechanisms.

Environmental protection: States must take applicable environmental obligations into account when developing energy infrastructure and transboundary projects.

Sustainable development: Energy cooperation should consider affordability, reliability, environmental protection and equitable access to electricity.

These principles do not automatically create a right to unrestricted electricity exports or require every state to provide open access to its grid. The precise legal obligations depend on the treaties, domestic legislation and contractual arrangements applicable to the transaction.

8. Recommended legal and institutional reforms

A phased approach is preferable. South Asian states can first improve bilateral and trilateral arrangements, then establish common technical and commercial rules, and ultimately consider more extensive regional market coupling if political agreement and infrastructure permit.

A regional regulator would require a clear legal mandate and agreement among participating states; it cannot simply be assumed to possess authority over national electricity systems.

9. Important statutory and documentary references

The following primary materials are useful for further research:

Electricity Act, 2003 — India's statutory framework for electricity regulation.

CERC Cross Border Trade of Electricity Regulations, 2019 — Cross-border trading rules, including their subsequent amendments. The CERC's official regulations register lists the relevant materials.

CERC

Guidelines for Import/Export (Cross Border) of Electricity, 2018 — Government policy governing cross-border electricity transactions; related procedures are available through the Central Electricity Authority.

Central Electricity Authority

SAARC Framework Agreement for Energy Cooperation (Electricity), 2014 — Regional framework for cooperation in electricity exchange and trade. The official agreement is available through India's Ministry of Power.

Power Ministry Of India

For legal research, the current consolidated regulations and any applicable amendments should be consulted rather than relying exclusively on the original 2018 or 2019 documents.

10. Conclusion

South Asian Power Market Integration offers a way to improve energy security, reduce inefficient use of generation resources, expand renewable-energy trade and support economic development across the region.

Its success, however, depends on more than building transmission lines. It requires enforceable agreements, transparent regulatory approvals, compatible grid standards, reliable payment systems and fair procedures for resolving disputes.

The case laws discussed above provide useful guidance on regulatory jurisdiction, contractual performance, tax treatment and the legal stability of electricity-sector rules. They do not establish a complete regional market regime; rather, they show why effective domestic law and interstate cooperation must operate together.

The key legal objective is to create a predictable, transparent and environmentally responsible regional electricity market while respecting the sovereignty and legitimate energy-security interests of participating countries.