1. Introduction

Infrastructure systemic risk mapping is the legal, regulatory, technical and institutional process of identifying how failures in one critical infrastructure component can propagate through an interconnected system and create wider disruption.

In electricity systems, systemic risk is particularly important because generation, transmission, distribution, communications, fuel supply, financial arrangements and digital control systems are interdependent. A failure of one major transmission corridor, for example, may cause cascading overloads, frequency instability, supply interruptions and economic losses beyond the location where the original failure occurred.

The concept therefore moves beyond ordinary asset-level risk management. Instead of asking only “What happens if this transformer fails?”, systemic risk mapping asks:

“What happens to the entire electricity system if this transformer, transmission corridor, control centre, generator, communications network or fuel supply chain fails, and what secondary failures may follow?”

Indian electricity jurisprudence increasingly recognises the importance of coordinated planning, grid stability, transmission infrastructure and regulatory supervision. The Electricity Act, 2003 provides an institutional framework in which the Central Electricity Regulatory Commission (CERC), State Electricity Regulatory Commissions, Central Electricity Authority (CEA), transmission utilities and licensees collectively contribute to system reliability.

2. Meaning of Systemic Risk

Systemic risk is a risk whose consequences extend beyond the immediate failure of an individual asset or organisation.

A useful distinction is:

Thus, systemic risk mapping examines dependencies, interdependencies, concentration points and cascading consequences.

3. Infrastructure Systemic Risk Mapping in Electricity Systems

Electricity infrastructure can be represented as a network:

Generation → Transmission → Substations → Distribution → Consumers

But the actual system is more complicated because it also depends upon:

natural gas and coal supply;

railways and ports;

telecommunications;

SCADA and digital control systems;

cybersecurity;

water supply for certain generation technologies;

financial markets;

electricity markets;

weather information;

emergency services;

transport infrastructure;

regulatory institutions.

Consequently, systemic risk mapping must identify both direct dependencies and indirect dependencies.

For example:

Gas supply disruption → gas-fired generation reduction → generation shortage → increased transmission loading → frequency instability → load shedding → industrial losses.

The original problem may therefore be located outside the electricity sector.

4. Major Components of Systemic Risk Mapping

A. Asset Mapping

The first stage is to identify critical physical assets:

power plants;

transmission lines;

transformers;

substations;

distribution feeders;

interconnectors;

control centres;

storage facilities;

substations serving critical consumers.

The purpose is to determine which assets have unusually high consequences if they fail.

A transformer serving several major transmission corridors may have considerably greater systemic significance than an ordinary distribution transformer.

B. Dependency Mapping

Infrastructure does not operate independently.

An electricity transmission network may depend upon:

telecommunications;

information technology;

fuel availability;

roads;

specialist engineering personnel;

replacement equipment;

financial liquidity;

regulatory approvals.

Therefore, risk mapping should identify cross-sector dependencies.

For example:

Electricity network → telecommunications → electricity network.

If telecommunications fail, operators may lose visibility or control over electricity infrastructure. The electricity failure can then worsen the telecommunications failure.

This produces a feedback loop.

5. Interdependency and Cascading Failure

One of the most important elements of systemic risk mapping is identifying cascading failure.

A simplified sequence can be represented as:

Initial failure

↓

Local overload

↓

Protection operation

↓

Power flow redistribution

↓

Additional equipment overload

↓

Voltage/frequency instability

↓

Additional disconnections

↓

Regional outage

↓

Economic and social disruption

This is why reliability cannot be assessed solely by examining individual components.

A legally responsible infrastructure operator may therefore need to consider whether its decisions create risks for the broader electricity system.

6. Risk Concentration and Critical Nodes

Systemic risk mapping identifies critical nodes or single points of failure.

A single point of failure is an asset or institution whose failure can significantly disrupt the system because there is insufficient redundancy.

Examples include:

strategically important substations;

major transmission corridors;

inter-regional transmission links;

system operation centres;

major generation clusters;

fuel-import terminals;

critical telecommunications systems.

The regulatory objective is generally to reduce excessive dependence on such points through:

redundancy;

alternative routes;

reserve capacity;

backup control systems;

emergency operating procedures;

diversified supply;

physical security;

cybersecurity.

7. Geographic Risk Mapping

Systemic risk can also have a geographical dimension.

A transmission corridor may cross:

flood-prone areas;

cyclone-prone regions;

wildfire-prone areas;

earthquake zones;

politically sensitive areas;

densely populated regions.

Risk mapping should therefore combine infrastructure maps with environmental and geographical risk maps.

For example:

Flooding → substation inundation → transmission outage → regional supply constraints.

Climate change makes this particularly important because historically observed weather conditions may no longer provide an adequate basis for infrastructure planning.

8. Temporal Risk Mapping

Systemic risk also changes over time.

An infrastructure system may be relatively stable under normal demand but vulnerable during:

peak summer demand;

extreme winter demand;

drought;

fuel shortages;

renewable generation variability;

major industrial demand;

simultaneous equipment failures.

Therefore, risk mapping should consider different operational scenarios rather than a single normal operating condition.

9. Legal Framework in India

The Electricity Act, 2003 is central to systemic risk governance.

Its architecture separates and coordinates functions involving:

generation;

transmission;

distribution;

system operation;

electricity regulation;

tariff regulation;

grid standards;

planning;

open access.

The CEA plays an important role in technical standards and planning, while CERC and State Commissions perform regulatory functions within their respective jurisdictions.

The statutory framework is therefore capable of addressing infrastructure risk at multiple levels rather than treating it purely as a private contractual problem.

10. Role of CEA and Grid Standards

Systemic risk mapping depends heavily upon technical standards.

These include requirements relating to:

grid connectivity;

transmission planning;

system operation;

protection systems;

frequency management;

voltage management;

metering;

communication systems;

emergency procedures.

The underlying principle is that an interconnected electricity system requires common technical rules.

A generating company or transmission licensee cannot ordinarily treat its infrastructure as completely independent because its operations affect the wider interconnected grid.

11. Role of CERC

CERC's regulatory jurisdiction is particularly important for inter-State electricity infrastructure.

The Supreme Court has repeatedly recognised the significance of the statutory regulatory structure established under the Electricity Act.

In Power Grid Corporation of India Ltd. v. Central Electricity Regulatory Commission (2025), the Supreme Court considered issues concerning Powergrid's inter-State transmission infrastructure and CERC's regulatory powers. The case involved transmission assets and questions arising under the Electricity Act, demonstrating the importance of regulatory supervision over nationally significant transmission infrastructure. (Indian Kanoon)

The 2025 Supreme Court jurisprudence also recognised the broad regulatory role of CERC under Section 79 in matters concerning inter-State transmission projects. (Live Law)

This is relevant to systemic risk because delays, coordination failures and infrastructure gaps in one part of the transmission system may affect the operation of other connected assets.

12. Case Law: Power Grid Corporation of India Ltd. v. Central Electricity Regulatory Commission (2025)

This is an important recent authority.

The dispute concerned Powergrid's transmission infrastructure, including failures of inter-connecting transformers in its Rihand transmission system. The judgment records that three transformers in the Rihand-I system failed during a period when demand was expected to be high in the National Capital Region. (Indian Kanoon)

Relevance to systemic risk mapping

The case demonstrates several principles:

Transmission assets have system-wide significance.

Equipment failure cannot necessarily be treated as an isolated commercial event.

Infrastructure planning and timely replacement can have consequences for system reliability.

Regulatory institutions have an important role in supervising transmission infrastructure.

Asset-level reliability contributes directly to broader grid reliability.

Thus, systemic risk mapping should identify assets whose failure could materially affect the wider network.

13. Case Law: Power Grid Corporation of India Ltd. v. Madhya Pradesh Power Transmission Company Ltd. (2025)

In another 2025 Supreme Court decision, the Court considered a dispute involving inter-State transmission infrastructure and delayed downstream intra-State transmission infrastructure. (Indian Kanoon)

The case illustrates a crucial systemic-risk principle:

Infrastructure must be analysed as a connected network rather than as isolated projects.

A transmission project may be physically complete but unable to deliver its intended system benefit because a connected downstream facility has not been completed.

Therefore:

Project A completion ≠ System completion

unless the infrastructure required for its integration is also available.

This is particularly important for:

renewable-energy evacuation;

inter-State transmission;

regional grid integration;

storage;

new generating capacity;

cross-border electricity infrastructure.

14. Case Law: Tata Power Company Ltd. v. Maharashtra Electricity Regulatory Commission (2022)

The Supreme Court's decision in Tata Power Company Ltd. v. Maharashtra Electricity Regulatory Commission concerned transmission-project development and regulatory issues under the Electricity Act, 2003. (Indian Kanoon)

Its broader significance for systemic risk mapping lies in recognising that electricity transmission planning operates within a statutory regulatory framework rather than merely through bilateral commercial arrangements.

Transmission infrastructure decisions can affect:

network topology;

competition;

access;

reliability;

future generation;

consumer supply.

Consequently, infrastructure mapping should consider the systemic consequences of transmission investment decisions, not merely project-level financial returns.

15. Case Law: PTC India Ltd. v. CERC (2010)

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

The Supreme Court explained the nature of the regulatory functions performed under the Electricity Act, including the distinction between regulations and adjudicatory functions.

This matters for systemic risk because technical and market rules affecting the interconnected grid require a legally recognised regulatory framework.

Systemic-risk governance therefore cannot depend solely upon voluntary coordination among private actors.

16. Case Law: Maharashtra Electricity Regulatory Commission v. Reliance Energy Ltd. (2007)

In Maharashtra Electricity Regulatory Commission v. Reliance Energy Ltd., (2007) 8 SCC 381, the Supreme Court considered the statutory jurisdiction of electricity regulatory commissions.

The decision is relevant to infrastructure risk because electricity regulation operates within defined statutory competencies.

Systemic-risk governance consequently requires:

legally authorised institutions;

clearly allocated responsibilities;

enforceable standards;

appropriate regulatory jurisdiction.

Risk mapping without institutional responsibility may identify risks without creating mechanisms to address them.

17. Open Access and Grid Stability

Systemic risk mapping is also relevant to electricity markets.

The Supreme Court in a 2025 judgment concerning open-access regulation recognised the relationship between scheduling requirements, deviation management and grid stability. The judgment observed that electricity scheduling rules contribute to predictability and reliability and that deviations can destabilise grid operations. (Sci API)

This demonstrates that systemic risk is not limited to physical infrastructure.

Market behaviour itself can become a systemic risk factor.

For example:

unscheduled injections;

excessive deviations;

inaccurate forecasting;

congestion;

inadequate reserves;

can collectively threaten system stability.

18. Systemic Risk and Climate Change

Climate change changes the risk profile of infrastructure.

Traditional risk assessments often rely upon historical probability:

“This event occurred once every 100 years.”

But changing climate conditions can make historical frequency an unreliable guide.

Systemic mapping should therefore incorporate:

extreme rainfall;

flooding;

heatwaves;

cyclones;

drought;

wildfire;

changing cooling-water availability;

extreme electricity demand.

A resilient legal framework should require infrastructure planning to consider foreseeable climate-related hazards.

19. Systemic Risk and Cybersecurity

Modern electricity infrastructure increasingly depends upon digital systems.

Important components include:

SCADA;

digital substations;

smart meters;

energy-management systems;

telecommunications;

remote-control systems;

cloud services.

Cybersecurity therefore becomes part of infrastructure systemic-risk mapping.

A cyberattack on a single facility may be less important than the possibility of simultaneous compromise of multiple interconnected facilities.

Risk mapping should consequently examine:

Common software → common vulnerability → multiple infrastructure failures.

20. Systemic Risk and Renewable Energy

The transition toward renewable energy introduces new forms of systemic risk.

Large-scale renewable generation may be geographically concentrated.

For example:

Large solar/wind zone → transmission congestion → curtailment → imbalance → need for storage/reserves.

Renewable integration therefore requires systemic planning involving:

transmission expansion;

storage;

flexible generation;

forecasting;

demand response;

inter-regional transmission;

grid-forming technologies.

Infrastructure systemic risk mapping is consequently an important component of the energy transition.

21. Systemic Risk and Infrastructure Redundancy

One of the principal responses to systemic risk is redundancy.

Redundancy may involve:

duplicate transformers;

parallel transmission lines;

alternative communication routes;

backup control centres;

reserve generation;

multiple fuel sources;

distributed generation;

energy storage.

However, redundancy creates additional costs.

Therefore, regulators must balance:

Reliability + resilience + affordability + efficiency.

The legal question is not necessarily whether every infrastructure component should have unlimited backup, but whether the level of redundancy is proportionate to the consequences of failure.

22. Systemic Risk Mapping Methodology

A comprehensive legal-risk mapping process can follow these steps:

Step 1 — Identify critical infrastructure

List all infrastructure whose failure could materially affect electricity supply.

Step 2 — Identify dependencies

Determine dependencies on:

fuel;

telecommunications;

water;

transport;

finance;

digital infrastructure.

Step 3 — Identify failure scenarios

Examples:

transformer failure;

transmission-line failure;

cyberattack;

flood;

cyclone;

fuel shortage;

simultaneous equipment failures.

Step 4 — Model cascading consequences

Determine how one failure can cause another.

Step 5 — Identify critical nodes

Determine which facilities have disproportionate systemic importance.

Step 6 — Assess legal responsibility

Identify the responsible:

generator;

transmission licensee;

distribution licensee;

system operator;

CEA;

CERC;

SERC;

government authority.

Step 7 — Establish mitigation measures

Possible measures include:

redundancy;

reserve capacity;

emergency procedures;

mandatory reporting;

technical standards;

cybersecurity;

climate adaptation.

Step 8 — Conduct periodic reassessment

Risk maps should be updated because infrastructure, technology, demand and climate conditions change.

23. Legal Accountability

Systemic risk mapping also raises the question of who is legally responsible when systemic failure occurs.

Possible forms of accountability include:

regulatory penalties;

compensation;

tariff consequences;

licence conditions;

performance standards;

statutory directions;

judicial review;

contractual liability.

The legal system should distinguish between:

ordinary equipment failure;

negligent maintenance;

regulatory non-compliance;

unavoidable external events;

systemic failures arising from inadequate planning.

This distinction is important because not every infrastructure failure should automatically create liability.

24. Infrastructure Systemic Risk as a Public-Law Issue

Electricity infrastructure has characteristics of a public utility because its failure can affect:

households;

hospitals;

transportation;

telecommunications;

water systems;

manufacturing;

financial services;

public administration.

Therefore, systemic risk mapping has a strong public-law dimension.

The State's role is not necessarily to own every infrastructure asset. Rather, the regulatory system must ensure that critical infrastructure is planned, operated and maintained in a manner compatible with public interest and system reliability.

25. Importance for India

For India, systemic risk mapping is increasingly important because of:

rapid electricity demand growth;

large renewable-energy deployment;

increasing inter-State power flows;

digitalisation;

electrification of transport;

storage deployment;

climate-related extreme events;

expansion of industrial loads;

increasing dependence on interconnected infrastructure.

The legal framework must therefore evolve from a narrow asset-by-asset approach toward a network resilience approach.

26. Conclusion

Infrastructure Systemic Risk Mapping represents a shift from traditional infrastructure regulation toward network-wide resilience governance.

In electricity law, its central proposition is that an electricity asset cannot always be evaluated in isolation. A transformer, transmission corridor, control centre, communication network or generation facility may become a critical systemic node whose failure affects the entire electricity ecosystem.

Indian electricity jurisprudence supports this network-oriented approach. Recent Supreme Court decisions concerning Powergrid and CERC demonstrate the importance of coordinated transmission planning, regulatory supervision and reliable infrastructure. (Indian Kanoon) The Supreme Court's treatment of grid stability and scheduling also shows that systemic risk encompasses both physical infrastructure and market operations. (Sci API)

Accordingly, an effective legal framework for systemic risk mapping should integrate infrastructure planning, technical standards, redundancy, climate resilience, cybersecurity, market regulation, emergency preparedness and institutional accountability.

The ultimate objective is not merely to prevent individual infrastructure failures. It is to ensure that the failure of one component does not become the failure of the system as a whole.