Competition Law and Smart Grid Market Power Concerns

Introduction

A smart grid is an electricity network that uses digital communications, sensors, automated controls, advanced metering infrastructure, distributed energy resources (DERs), storage, demand-response systems, and software to coordinate electricity generation, transmission, distribution, and consumption.

Smart grids create substantial competition-law benefits: more efficient dispatch, greater consumer participation, easier entry by renewable generators, demand-response aggregation, distributed generation, and innovative energy services. At the same time, they can create or amplify market power because control over electricity networks, data, interoperability standards, balancing platforms, software, and access to grid infrastructure can give an undertaking the ability to restrict rivals.

The principal competition concerns arise under abuse of dominance, refusal of access, discriminatory access, tying and bundling, exclusionary interoperability practices, information advantages, coordinated conduct, and mergers involving critical grid assets or platforms.

1. Meaning of Market Power in a Smart Grid

Traditional electricity markets already possess structural characteristics conducive to market power:

• transmission and distribution networks are often natural monopolies;
• electricity is difficult to store economically at scale, although batteries increasingly change this;
• supply and demand must be balanced continuously;
• network congestion can create geographically localized market power;
• consumers may face substantial switching costs.

Smart-grid technology introduces additional sources of market power:

1. Grid-control software
2. Advanced metering infrastructure
3. Consumer energy data
4. Demand-response platforms
5. DER aggregation platforms
6. Battery-management systems
7. Electric-vehicle charging networks
8. Interoperability standards
9. Balancing and ancillary-service platforms
10. Cloud and communications infrastructure supporting grid operations

Consequently, competition authorities must examine not merely ownership of physical infrastructure but also control over digital infrastructure and information.

2. Relevant Markets

Market definition is particularly complicated because a smart grid contains multiple interconnected markets.

A. Electricity generation market

Competition may occur among:

• conventional generators;
• renewable generators;
• distributed generators;
• battery-storage operators;
• flexible-generation resources.

B. Wholesale electricity market

The relevant market may involve:

• day-ahead electricity;
• real-time electricity;
• balancing services;
• ancillary services;
• capacity services.

C. Transmission and distribution

Transmission and distribution networks may constitute separate relevant markets because alternative networks are often economically impractical.

D. Smart-metering market

This may include:

• smart meters;
• meter-management systems;
• meter-data management;
• associated software.

E. Demand-response market

Aggregators may compete to provide flexibility services by coordinating:

• household loads;
• commercial consumers;
• industrial consumers;
• batteries;
• EVs;
• rooftop solar.

F. Grid-management software

A software supplier may possess market power where its system becomes deeply integrated with the network and alternative systems cannot easily interoperate.

3. Sources of Smart-Grid Market Power

A. Network Monopoly

Electricity distribution networks frequently exhibit natural-monopoly characteristics.

A network operator controlling essential infrastructure may therefore have the ability to affect downstream competitors.

Potential abuses include:

• denying network access;
• delaying connection;
• charging discriminatory fees;
• providing inferior technical access;
• allocating insufficient capacity;
• discriminating between affiliated and independent businesses.

B. Control Over Consumer Energy Data

Smart meters generate extremely valuable information concerning:

• consumption patterns;
• peak demand;
• household behaviour;
• distributed generation;
• battery usage;
• EV charging;
• demand-response potential.

A vertically integrated utility controlling this data could potentially disadvantage competing:

• retailers;
• aggregators;
• energy-management companies;
• storage providers;
• demand-response providers.

Competition authorities therefore increasingly need to consider data access as a competition issue.

4. Refusal to Provide Grid Access

A dominant grid operator may possess infrastructure that competitors cannot reasonably duplicate.

Competition concerns arise where the operator:

• refuses access completely;
• imposes unreasonable technical requirements;
• imposes excessive connection costs;
• provides access only to affiliated businesses;
• deliberately delays interconnection.

This resembles the essential-facilities doctrine, although its application depends on the jurisdiction and the precise statutory framework.

5. Discriminatory Access

A vertically integrated electricity company may simultaneously operate:

Grid infrastructure + electricity supply + generation + energy-management services.

This creates an incentive to provide better network access to its own downstream operations.

For example:

Independent solar aggregator → requests grid access

while

Utility affiliate → receives faster approval and better capacity

may raise concerns under abuse-of-dominance or discriminatory-access principles.

6. Tying and Bundling

Smart-grid operators may control several complementary products:

• electricity supply;
• smart meters;
• grid-management software;
• energy-management systems;
• EV charging;
• storage;
• demand-response services.

A dominant undertaking could potentially make access to one service conditional upon purchasing another.

Example

A utility might require consumers using its smart-metering infrastructure to purchase its proprietary energy-management software.

This can raise concerns where:

1. the undertaking is dominant in the tying market;
2. the products are distinct;
3. customers are coerced into purchasing the tied product;
4. the practice forecloses competitors.

7. Interoperability and Standards

Smart grids depend heavily upon interoperability.

Different systems must communicate:

• meters;
• sensors;
• substations;
• batteries;
• EV chargers;
• distributed generators;
• control platforms.

A dominant technology provider may potentially use technical standards to exclude competing technologies.

Competition concerns may include:

• withholding interoperability information;
• proprietary interfaces;
• discriminatory certification;
• excessive licensing conditions;
• deliberate incompatibility;
• technical restrictions preventing switching.

8. Switching Costs and Lock-In

Smart-grid infrastructure frequently involves substantial installation and integration costs.

Once a utility or grid operator adopts a particular technological ecosystem, changing suppliers may require:

• replacing meters;
• changing software;
• retraining personnel;
• changing communications infrastructure;
• rewriting APIs;
• replacing control equipment.

This can create technological lock-in.

A supplier may consequently gain market power even without possessing an overwhelming share of the initial market.

9. Algorithmic Market Power

Smart grids increasingly use algorithms to determine:

• electricity prices;
• demand-response bids;
• storage dispatch;
• congestion management;
• balancing;
• EV charging;
• generator scheduling.

Algorithms can improve efficiency but may also facilitate:

• coordinated pricing;
• rapid responses to competitors;
• discriminatory pricing;
• automated exclusion;
• exploitation of market information.

Competition authorities therefore have to distinguish legitimate algorithmic optimization from conduct that produces anticompetitive effects.

10. Data Advantages and Information Asymmetry

A grid operator may possess substantially more information than downstream competitors.

For example, it may know:

• where congestion will occur;
• expected demand;
• available capacity;
• consumer flexibility;
• generator availability;
• network constraints.

If the operator also competes downstream, using non-public information to benefit its affiliated business can create significant competitive concerns.

11. Vertical Foreclosure

Smart grids create particularly strong opportunities for vertical integration.

Consider:

Generation → Transmission → Distribution → Smart meter → Data platform → Retail → Demand response

If one company controls several levels, it may have both the ability and incentive to foreclose competitors.

Possible strategies include:

• discriminatory access;
• margin squeeze;
• tying;
• data discrimination;
• interoperability restrictions;
• preferential dispatch;
• discriminatory connection;
• withholding technical information.

12. Margin Squeeze

Suppose a vertically integrated grid operator:

• charges independent retailers a high wholesale/network price;
• simultaneously sells electricity downstream at a price that leaves rivals insufficient margin.

The issue may constitute a margin squeeze where the relevant legal requirements are satisfied.

The basic economic test is:

Downstream competitive price − upstream access cost < reasonably sufficient margin

This can make entry or continued operation of independent suppliers commercially impossible.

13. Capacity Hoarding

Market power may also arise through strategic control of scarce grid capacity.

A participant could potentially:

• reserve transmission capacity;
• withhold generation;
• strategically charge batteries;
• manipulate congestion;
• restrict interconnection opportunities.

Such conduct becomes particularly significant during periods of:

• extreme demand;
• transmission congestion;
• renewable intermittency;
• system emergencies.

14. Merger Control

Smart-grid mergers may involve:

• utilities;
• transmission operators;
• energy retailers;
• battery companies;
• EV charging networks;
• smart-meter suppliers;
• grid-software companies;
• demand-response aggregators.

Authorities may examine whether a transaction creates:

• horizontal concentration;
• vertical foreclosure;
• data concentration;
• interoperability problems;
• increased switching costs;
• control over essential infrastructure.

A merger between two electricity-market participants may therefore raise concerns even when their traditional generation shares appear modest if the transaction gives them control over an important digital or network bottleneck.

15. Important Case Laws

The following cases provide useful principles for analysing smart-grid market-power problems.

1. United Brands v Commission — C-27/76

The European Court of Justice examined dominance and abusive conduct under Article 102 TFEU.

Relevance to smart grids

The case is useful for understanding:

• market definition;
• dominance;
• barriers to entry;
• economic dependence;
• exclusionary conduct.

A smart-grid operator possessing control over an indispensable network may similarly need to be assessed according to its ability to behave independently of customers and competitors.

2. Commercial Solvents v Commission — Joined Cases 6/73 and 7/73

The Court addressed exclusionary conduct by a vertically integrated dominant undertaking.

Smart-grid relevance

The principle is important where a vertically integrated energy company controls an upstream resource required by downstream competitors.

Examples include:

• grid access;
• balancing services;
• network capacity;
• technical interfaces.

A dominant upstream undertaking cannot necessarily use its control over an indispensable input to eliminate downstream competition.

3. Bronner v Mediaprint — C-7/97

This is a leading European authority concerning refusal to supply and essential facilities.

The Court established demanding conditions for requiring a dominant undertaking to provide access to infrastructure.

Smart-grid relevance

The case is particularly useful where:

A smart-grid operator refuses access to a network or technological infrastructure.

The analysis requires consideration of factors such as indispensability and whether duplication is realistically possible.

4. IMS Health v NDC Health — C-418/01

The case concerned refusal to license intellectual property and the circumstances under which refusal to provide access could constitute abuse.

Smart-grid relevance

Smart-grid technology may involve proprietary:

• software;
• communication protocols;
• databases;
• interfaces;
• control systems.

Where competitors require access to a proprietary technological component, the IMS Health principles provide an important framework for analysing when exclusionary refusal becomes problematic.

5. Microsoft v Commission — Case T-201/04

The European General Court examined Microsoft's refusal to provide interoperability information.

Smart-grid relevance

This is highly relevant to smart-grid ecosystems.

Modern grids require interoperability between:

• meters;
• control systems;
• storage systems;
• charging infrastructure;
• distributed generators.

A dominant technology provider that restricts interoperability may potentially prevent competing systems from functioning effectively.

6. Deutsche Telekom v Commission — C-280/08 P

The Court considered a margin-squeeze theory involving a vertically integrated telecommunications operator.

Smart-grid relevance

The principle is transferable to vertically integrated energy markets.

A grid operator that:

1. controls an upstream network;
2. competes downstream; and
3. establishes an upstream/downstream price relationship that excludes efficient competitors

may potentially face margin-squeeze concerns.

7. Telefónica v Commission — C-295/12 P

The case further addressed margin squeeze and exclusionary effects.

Smart-grid relevance

It illustrates the importance of examining the competitive relationship between:

• wholesale network access; and
• downstream retail services.

This is relevant where electricity networks and retail energy services are vertically integrated.

8. MOTOE v Elliniko Dimosio — C-49/07

The case concerned an entity exercising regulatory functions while also participating in an economic activity.

Smart-grid relevance

Smart-grid governance can involve public or regulated entities that both:

• administer infrastructure or access rules; and
• participate in competitive activities.

The case therefore helps illuminate competition concerns arising from conflicts between regulatory control and commercial participation.

16. Competition-Law Framework

A smart-grid market-power investigation can be organized as follows:

Step 1 — Define the market

Identify:

• geographic market;
• product market;
• wholesale/retail level;
• physical/digital infrastructure;
• data and software markets.

Step 2 — Determine market power

Consider:

• market shares;
• network effects;
• barriers to entry;
• switching costs;
• control of infrastructure;
• access to data;
• interoperability;
• technological dependence.

Step 3 — Identify conduct

Examine:

• refusal to deal;
• discriminatory access;
• tying;
• bundling;
• margin squeeze;
• excessive pricing;
• predatory pricing;
• capacity withholding;
• interoperability restrictions.

Step 4 — Analyse effects

Determine whether the conduct:

• excludes competitors;
• raises entry barriers;
• increases consumer costs;
• reduces innovation;
• restricts consumer choice;
• limits renewable-energy participation.

Step 5 — Consider objective justification

Some conduct may have legitimate technical explanations involving:

• grid stability;
• cybersecurity;
• reliability;
• safety;
• frequency management;
• congestion management.

The competition analysis must distinguish legitimate operational restrictions from restrictions that unnecessarily protect market power.

17. Regulatory Remedies

Competition authorities and energy regulators may employ several remedies.

Structural remedies

• divestiture;
• separation of network operations;
• ownership unbundling.

Behavioural remedies

• non-discriminatory access;
• transparent connection procedures;
• interoperability obligations;
• data-access requirements;
• information firewalls;
• non-discrimination commitments.

Technological remedies

• open APIs;
• common technical standards;
• portability mechanisms;
• interoperability requirements.

Transparency remedies

Operators may be required to disclose:

• available capacity;
• connection criteria;
• congestion information;
• access charges;
• technical standards.

18. Smart Grids and Essential-Facility Doctrine

The essential-facility question can be summarized:

Is the infrastructure genuinely indispensable?

↓

Can competitors realistically duplicate it?

↓

Is access technically and economically feasible?

↓

Has access been denied or made discriminatory?

↓

Does the refusal eliminate effective competition?

↓

Is there an objective justification?

↓

Would access obligations be proportionate?

This framework is especially relevant for:

• transmission networks;
• distribution networks;
• balancing platforms;
• critical data systems;
• interoperability interfaces.

19. Special Competition Risks in Future Smart Grids

The development of distributed energy systems will create new questions involving:

Vehicle-to-grid systems

EVs may become mobile electricity-storage resources. Control over charging infrastructure could therefore create market power over both transportation and electricity markets.

Battery aggregation

Aggregators may control thousands of batteries simultaneously, potentially becoming influential suppliers of balancing and ancillary services.

Virtual power plants

A platform controlling a large number of distributed resources could possess substantial bargaining power in wholesale markets.

AI-based grid management

AI systems could determine dispatch and pricing decisions. Competition authorities may need to examine whether algorithms merely optimize independently or facilitate coordinated conduct.

Energy-data platforms

Control over granular consumer data could become an important competitive advantage.

20. Conclusion

Smart-grid competition law goes beyond traditional electricity-market concentration. Market power can arise from control over physical networks, digital platforms, data, interoperability, algorithms, software, and distributed energy resources.

The most important competition concerns include:

1. Network access discrimination
2. Refusal to provide essential infrastructure
3. Vertical foreclosure
4. Margin squeeze
5. Tying and bundling
6. Interoperability restrictions
7. Data-based competitive advantages
8. Capacity withholding
9. Algorithmic coordination
10. Concentration through smart-grid mergers

The cases of United Brands, Commercial Solvents, Bronner, IMS Health, Microsoft, Deutsche Telekom, Telefónica, and MOTOE provide a useful doctrinal foundation for analysing these issues. Their principles can be adapted to smart-grid markets while accounting for the sector's distinctive requirements of reliability, cybersecurity, network stability, interoperability, and continuous electricity balancing.