Civil Law and Cross-Border Infrastructure Investment Litigation in Europe

1. Introduction

Cross-border infrastructure investment litigation in Europe concerns disputes arising from investments in infrastructure projects that involve more than one European jurisdiction or foreign investors investing in European infrastructure.

Infrastructure can include:

roads and highways;

railways and metro systems;

airports and ports;

electricity and gas networks;

telecommunications;

water and wastewater systems;

renewable-energy facilities;

pipelines;

data centres;

digital infrastructure;

public-private partnership (PPP) projects.

The disputes may involve investment agreements, concessions, construction contracts, financing, regulatory changes, expropriation, procurement, environmental requirements, tariffs, taxation, land rights and arbitration.

A cross-border infrastructure dispute therefore often combines civil law, EU law, public procurement law, company law, property law, investment law and arbitration.

2. Meaning of Cross-Border Infrastructure Investment Litigation

A dispute is cross-border where the investment, investor, project, contract, financing or damage has a substantial connection with more than one country.

Example

A German infrastructure company invests in a Spanish railway concession through a Luxembourg subsidiary.

Later:

Spain changes the regulatory tariff;

the concession becomes economically unviable;

the government terminates the concession;

the investor claims compensation;

Spain argues that the termination resulted from legitimate regulation.

The dispute may involve:

Spanish civil/administrative law;

EU procurement law;

EU state-aid rules;

investment-treaty rules;

arbitration;

company law;

contractual rights.

3. Main Legal Framework

A. Contract Law

Infrastructure investment normally begins with contracts.

Important contracts include:

concession agreements;

PPP agreements;

EPC contracts;

operation and maintenance agreements;

financing agreements;

shareholder agreements;

guarantees;

supply agreements.

The governing law determines issues such as:

breach;

termination;

damages;

force majeure;

hardship;

contractual interpretation.

4. EU Internal Market Law

Cross-border infrastructure projects can be affected by:

freedom of establishment;

freedom to provide services;

free movement of capital.

Relevant Treaty provisions include:

Article 49 TFEU;

Article 56 TFEU;

Article 63 TFEU.

A Member State cannot normally impose unjustified restrictions on cross-border investment.

5. Public Procurement

Large infrastructure projects frequently involve public authorities.

EU procurement law regulates:

tender procedures;

transparency;

equal treatment;

non-discrimination;

concession awards;

modification of public contracts.

Important legislation includes:

Directive 2014/24/EU;

Directive 2014/25/EU;

Directive 2014/23/EU on concessions.

A disappointed bidder may therefore challenge the award before national courts.

6. Concession Disputes

A concession allows a private investor to construct and/or operate public infrastructure.

Examples:

motorway concession;

airport concession;

water concession;

railway concession;

electricity-network concession.

Disputes can arise concerning:

concession duration;

tariffs;

government payments;

minimum revenue guarantees;

termination;

regulatory changes;

performance obligations.

7. Investment-Treaty Issues

Foreign investors may also rely upon investment treaties.

Potential claims include:

unlawful expropriation;

discriminatory treatment;

unfair or inequitable treatment;

denial of justice;

violation of legitimate expectations.

However, EU investment disputes have special complications because of the relationship between:

EU law + bilateral investment treaties + arbitration.

8. Energy Infrastructure

Energy projects generate significant litigation because governments regulate:

electricity prices;

gas pipelines;

renewable-energy subsidies;

grid access;

environmental permits;

network charges.

Investors may argue that regulatory changes destroyed the economic value of their investment.

Governments may argue that they were exercising legitimate regulatory powers.

9. Case Law

Because infrastructure-investment litigation is highly specialised, the following cases include direct infrastructure/investment authorities and closely related European authorities.

Case 1: Achmea BV v Slovakia

Case: C-284/16, Slowakische Republik v Achmea BV

Court: CJEU, Grand Chamber

Facts

Achmea, a Dutch investor, had invested in Slovakia's health-insurance sector.

The dispute proceeded under the Netherlands–Slovakia bilateral investment treaty.

An arbitral tribunal was constituted under the treaty.

Principle

The CJEU held that the arbitration mechanism in the intra-EU bilateral investment treaty was incompatible with EU law.

The Court emphasised the autonomy of EU law and the role of the CJEU in interpreting EU law.

Relevance to infrastructure

Infrastructure investors often structure investments through companies incorporated in different EU Member States.

After Achmea, an investor cannot simply assume that an intra-EU bilateral investment treaty arbitration clause will remain enforceable.

This is especially relevant for:

transport infrastructure;

energy;

utilities;

telecommunications;

PPP projects.

Classification: Direct investment-arbitration authority; important for cross-border EU investments.

10. Case 2: Komstroy

Case: C-741/19, Republic of Moldova v Komstroy LLC

Court: CJEU, Grand Chamber

Facts

The dispute concerned the Energy Charter Treaty and an investment in the energy sector.

Principle

The CJEU considered whether the Energy Charter Treaty arbitration mechanism could apply to disputes between investors and EU Member States.

The judgment reinforced the limits imposed by EU law on intra-EU investment arbitration.

Relevance

Infrastructure investments frequently concern:

electricity;

gas;

renewable energy;

pipelines;

transmission networks.

Therefore, Komstroy is particularly important for European energy infrastructure investments.

Classification: Direct/strong investment-law authority.

11. Case 3: Micula v Romania

Cases: Joined Cases C-638/19 P and related proceedings

Court: CJEU

Facts

The Micula brothers and associated companies invested in Romania.

An arbitral tribunal awarded compensation after Romania withdrew certain economic incentives.

The European Commission subsequently treated the payment of the award as potentially constituting unlawful state aid.

Principle

The dispute demonstrates the difficult relationship between:

investment arbitration;

EU state-aid law;

arbitral awards;

Member-State obligations.

Relevance to infrastructure

Infrastructure investors may receive:

subsidies;

tax incentives;

government guarantees;

grants;

minimum-revenue arrangements.

If those benefits are later challenged under EU state-aid rules, the investor may face significant litigation.

Classification: Direct investment/state-aid authority; highly relevant by analogy.

12. Case 4: Electrabel v Hungary

Case: Electrabel S.A. v Republic of Hungary, ICSID Case No. ARB/07/19

Facts

Electrabel invested in Hungary's electricity sector.

The dispute concerned regulatory changes affecting long-term electricity purchase arrangements.

Principle

The tribunal examined:

legitimate expectations;

regulatory powers;

treaty protection;

proportionality;

economic regulation.

The tribunal did not treat every adverse regulatory change as an unlawful interference with investment rights.

Relevance

This is highly relevant to infrastructure projects where the government changes:

electricity prices;

tariffs;

subsidy arrangements;

market structures.

Classification: Direct energy-infrastructure investment authority.

13. Case 5: Charanne and Construction Investments v Spain

Case: Charanne and Construction Investments v Kingdom of Spain, SCC Case No. 062/2012

Facts

Investors invested in Spain's renewable-energy sector.

Spain subsequently introduced changes affecting the renewable-energy regulatory framework.

The investors alleged violations of investment protections.

Principle

The tribunal examined whether regulatory changes violated the investors' treaty rights.

It distinguished between:

legitimate regulatory evolution;

prohibited interference with protected investment rights.

Relevance

This case is particularly important for:

solar infrastructure;

wind farms;

energy networks;

renewable-energy investment.

Classification: Direct renewable-energy infrastructure investment authority.

14. Case 6: Eiser Infrastructure Limited v Spain

Case: Eiser Infrastructure Limited and Energía Solar Luxembourg S.à r.l. v Kingdom of Spain, ICSID Case No. ARB/13/36

Facts

Investors invested in Spanish concentrated solar-power projects.

Spain subsequently changed its renewable-energy regulatory framework.

The investors alleged that the reforms substantially affected their investment.

Principle

The tribunal considered whether the regulatory changes breached investment-treaty protections, particularly fair and equitable treatment.

Relevance

This case illustrates a major infrastructure-investment problem:

Investors require regulatory stability, while governments retain the power to modify public policy.

It is particularly relevant to infrastructure projects with long investment periods.

Classification: Direct renewable-energy infrastructure authority.

15. Case 7: Antin Infrastructure Services Luxembourg S.à r.l. v Spain

Case: Antin Infrastructure Services Luxembourg S.à r.l. and Antin Energia Termosolar B.V. v Kingdom of Spain, ICSID Case No. ARB/13/31

Facts

The investors had interests in Spanish renewable-energy infrastructure.

Spain modified its renewable-energy regulatory regime.

The investors alleged that the changes breached investment protections.

Principle

The tribunal examined:

legitimate expectations;

regulatory change;

fair and equitable treatment;

investor reliance.

Relevance

This is directly relevant to infrastructure investment where the financial model depends on:

regulated tariffs;

subsidies;

feed-in arrangements;

long-term government regulation.

Classification: Direct renewable-infrastructure authority.

16. Case 8: Blusun S.A., Jean-Pierre Lecorcier and Jean-Pascal Besson v Italy

Case: Blusun S.A. v Italy, ICSID Case No. ARB/14/3

Facts

The dispute involved investments in Italy's renewable-energy sector.

Regulatory changes affected the investment.

Principle

The tribunal considered whether Italy's regulatory measures violated investment protections.

The decision is important for distinguishing:

legitimate regulatory action;

treaty-protected investor expectations.

Relevance

Infrastructure investments are usually long-term and regulation can change during the project's lifetime.

Classification: Direct renewable-energy investment authority.

17. Case 9: Vattenfall v Germany

Case: Vattenfall AB and others v Federal Republic of Germany

The Vattenfall disputes concerned major energy investments and German regulatory measures.

They illustrate how infrastructure projects can become disputes concerning:

environmental regulation;

energy policy;

permits;

investment protection;

regulatory change.

Relevance

Energy infrastructure demonstrates particularly clearly the tension between:

Investor protection

and

the state's regulatory power.

Classification: Direct/strong energy-investment authority.

18. EU Law and Regulatory Change

Infrastructure projects often have investment horizons of:

20–50 years or more.

Therefore, the legal environment may change after the investment is made.

Examples include:

new environmental legislation;

carbon regulation;

energy-market reform;

taxation;

safety standards;

public procurement rules;

digital-security requirements.

A central litigation question is:

When does lawful regulatory change become unlawful interference with contractual or investment rights?

There is no universal answer.

The court or tribunal examines:

wording of the contract/treaty;

investor expectations;

representations made by the state;

degree of regulatory change;

foreseeability;

economic impact;

public-interest objective;

proportionality;

applicable EU law.

19. Expropriation

Infrastructure investment disputes may involve direct or indirect expropriation.

Direct expropriation

The state formally takes ownership of the infrastructure.

Indirect expropriation

The investor retains formal ownership but government measures allegedly deprive the investment of substantial economic value.

Example:

A foreign company owns a toll-road concession, but a government measure prevents it from operating the concession for the remainder of the contractual period.

The legal question becomes whether the interference amounts to expropriation or legitimate regulation.

20. Fair and Equitable Treatment

Investment treaties may protect investors through fair and equitable treatment (FET).

Potential concerns include:

arbitrary governmental action;

inconsistent treatment;

procedural unfairness;

fundamental changes to regulatory commitments;

frustration of specific governmental representations.

However, FET does not necessarily freeze the regulatory system permanently.

21. Legitimate Expectations

Infrastructure investments frequently depend upon long-term assumptions.

For example:

An investor builds a solar facility based on a government tariff system expected to remain in place for 25 years.

If the government subsequently changes the tariff, the investor may argue that it had legitimate expectations.

The government may respond that:

the legislation permitted future amendments;

the regulatory regime was subject to review;

the investor should have anticipated regulatory change;

public-interest considerations justified the reform.

The tribunal must examine the specific legal and factual circumstances.

22. Public Procurement Disputes

Cross-border infrastructure investment commonly begins with a public tender.

Potential disputes include:

exclusion of bidder;

discriminatory specifications;

improper evaluation;

unlawful contract modification;

conflict of interest;

concession award;

termination.

Important procurement cases

Concordia Bus Finland, C-513/99

The CJEU considered environmental criteria in public procurement.

Wienstrom, C-448/01

The Court considered environmental criteria and procurement requirements.

Pressetext, C-454/06

The Court developed important principles concerning substantial modifications to public contracts.

These cases are highly relevant to infrastructure procurement.

23. Infrastructure Financing

Large projects normally require substantial financing.

Possible disputes include:

project-finance agreements;

syndicated loans;

guarantees;

security interests;

refinancing;

currency risk;

interest-rate changes;

lender step-in rights.

A cross-border financing dispute may involve:

Borrower → project company → investors → lenders → government/concession authority.

24. PPP Litigation

Public-private partnerships create complex legal relationships.

A typical PPP may contain:

government;

special-purpose vehicle;

construction contractor;

operator;

lender;

insurance company;

foreign investor.

A single regulatory decision may therefore produce several simultaneous claims.

For example:

Government terminates concession → project company sues → lender enforces security → investor begins arbitration → contractor claims payment.

25. Environmental Regulation

Modern infrastructure litigation frequently involves:

climate obligations;

environmental permits;

biodiversity;

emissions;

water protection;

land-use rules.

A foreign investor cannot necessarily claim that environmental regulation is unlawful merely because it reduces profitability.

The court or tribunal must distinguish:

legitimate environmental regulation

from

unlawful interference with protected rights.

26. Force Majeure and Hardship

Infrastructure projects can be affected by:

war;

energy crises;

pandemics;

natural disasters;

supply-chain disruption;

extreme inflation.

Contracts may contain:

force majeure clauses;

hardship clauses;

price-adjustment mechanisms;

renegotiation provisions.

Civil-law systems may also provide statutory mechanisms for changed circumstances, depending on the applicable national law.

27. Jurisdiction

Cross-border infrastructure disputes may be heard by:

national courts;

commercial courts;

administrative courts;

arbitral tribunals;

EU courts.

Jurisdiction depends upon:

contractual arbitration clause;

choice-of-court clause;

concession structure;

applicable treaty;

defendant's domicile;

location of infrastructure;

mandatory public-law rules.

28. Arbitration

Infrastructure contracts frequently use arbitration because projects involve international investors.

Common institutions include:

ICC;

ICSID;

SCC;

LCIA;

UNCITRAL arbitration.

However, arbitration clauses involving EU Member States require special attention after Achmea and Komstroy.

29. Evidence

Important evidence includes:

concession agreement;

tender documents;

feasibility studies;

financial model;

government correspondence;

regulatory decisions;

board minutes;

investment agreements;

permits;

expert valuation;

construction records;

accounting records;

tariff decisions.

Expert evidence

Experts may calculate:

lost profits;

diminution in value;

replacement cost;

discounted cash flow;

sunk investment;

expected future revenue.

30. Damages

Possible damages include:

1. Actual investment loss

Money actually invested and lost.

2. Lost profits

Future revenue that would allegedly have been earned.

3. Diminution in value

Difference between:

investment value before wrongful conduct

and

value after wrongful conduct.

4. Interest

Pre-award and post-award interest may be claimed.

5. Restitution

In appropriate cases, restoration of the contractual or property position may be sought.

31. Defences of the State

A government may argue:

the measure was lawful;

the investor assumed regulatory risk;

no protected investment existed;

the treaty does not apply;

the claim is time-barred;

the measure was non-discriminatory;

public-interest regulation justified the measure;

EU law prevented the government from providing the claimed benefit;

the investor contributed to its own loss;

damages are speculative.

32. Defences of Investors

Investors may argue:

contractual rights were breached;

government made specific representations;

investment relied upon those representations;

regulatory change was unforeseeable;

treatment was discriminatory;

the project was effectively deprived of economic value;

termination was unlawful;

compensation was inadequate;

procurement rules were violated;

the government's conduct breached applicable treaty protections.

33. Relationship Between Civil Claims and Investment Claims

These claims should not be confused.

Contract claim

Government breached the concession agreement.

Tort claim

Government or another party caused civil damage.

Investment claim

State conduct breached an investment treaty.

Procurement claim

Public authority unlawfully awarded or modified a contract.

Regulatory challenge

Administrative decision is unlawful.

One infrastructure dispute can contain several of these claims simultaneously.

34. Practical Example

Assume a French infrastructure company invests €500 million in an Italian motorway concession.

The concession provides for:

30-year operation;

regulated tolls;

government approval of tariff changes.

After ten years, Italy changes the tariff methodology.

The project's expected revenue falls substantially.

The investor may consider:

Contract claim

Was the concession agreement breached?

Administrative claim

Was the regulatory decision lawful?

EU-law claim

Does the measure unlawfully restrict cross-border investment?

Investment claim

Does an applicable treaty provide protection?

Damages claim

What financial loss resulted from the measure?

Arbitration

Does the concession or applicable treaty contain a valid arbitration agreement?

35. Important Legal Test

For examination purposes:

Step 1 — Identify the investment

What infrastructure is involved?

Step 2 — Identify the investor

Where is the investor incorporated?

Step 3 — Identify the project structure

PPP, concession, private project or public procurement?

Step 4 — Identify the legal instruments

Contract, treaty, EU legislation or national legislation?

Step 5 — Identify the government measure

Termination, taxation, tariff change, permit refusal, expropriation or regulation?

Step 6 — Determine jurisdiction

Court, administrative tribunal or arbitration?

Step 7 — Determine applicable law

Contract law + national public law + EU law + investment law.

Step 8 — Determine breach

Contractual breach, discriminatory treatment, expropriation, FET violation or unlawful procurement?

Step 9 — Determine causation

Did the government action actually cause the loss?

Step 10 — Calculate remedy

Damages, restitution, annulment, injunction or other relief.

36. Quick Revision Table

37. Key Principles

The most important principles are:

Cross-border infrastructure investment is governed by multiple legal regimes.

EU internal-market freedoms protect cross-border economic activity but do not eliminate legitimate regulation.

Infrastructure concessions can generate both contractual and public-law disputes.

Regulatory change does not automatically constitute expropriation.

Legitimate expectations depend heavily on the legal commitments actually made to the investor.

Public-interest regulation can be relevant to the legality of state action.

EU state-aid rules can affect government support given to infrastructure investors.

EU procurement law controls many infrastructure project awards.

Achmea and Komstroy are particularly important for intra-EU investment arbitration.

Energy and renewable infrastructure have generated substantial European investment litigation.

Damages require proof of causation and reliable valuation.

Contractual, regulatory and treaty claims must be analysed separately.

Conclusion

Cross-border infrastructure investment litigation in Europe is a multi-layered field combining civil law, contract law, EU internal-market rules, procurement law, regulatory law, investment protection and arbitration.

The central tension is between the investor's protected contractual or investment interests and the state's continuing authority to regulate infrastructure in the public interest. The cases involving Achmea, Komstroy, Micula, Electrabel, Charanne, Eiser, Antin and Blusun demonstrate different aspects of that relationship.

For an exam or legal analysis, the most effective approach is:

Investment → Contract/Concession → Regulatory Measure → EU Law → Jurisdiction → Breach → Causation → Damages/Remedy.