Arbitration in Infrastructure Mega-Projects

1. Introduction

Infrastructure mega-projects—such as high-speed railways, airports, metros, highways, tunnels, bridges, ports, dams, power plants, offshore wind farms, pipelines and smart-city projects—are particularly suitable for arbitration because they involve enormous financial investments, technically complex contracts, multiple jurisdictions, government entities, lenders, EPC contractors, subcontractors and concessionaires.

A mega-project may involve a contractual chain such as:

Government / Public Authority → Concessionaire / SPV → EPC Contractor → Design Consultant → Subcontractors / Suppliers → Operators

A single project can therefore generate disputes concerning:

• delay and extension of time;
• liquidated damages;
• cost overruns;
• design responsibility;
• defective construction;
• unforeseen ground conditions;
• variations and change orders;
• force majeure;
• governmental interference;
• permits and approvals;
• termination;
• performance guarantees;
• payment and milestone certification;
• financing arrangements;
• concession obligations;
• availability payments;
• operation and maintenance;
• political and regulatory risk.

Arbitration is frequently selected because it permits specialist adjudication, procedural flexibility, confidentiality, cross-border enforcement and selection of technically experienced arbitrators.

The importance of careful contractual drafting is illustrated by MT Højgaard A/S v E.ON, where the United Kingdom Supreme Court examined conflicting technical requirements concerning offshore wind-farm foundations and held the contractor responsible for a specified 20-year design-life obligation.

2. Why Mega-Projects Generate Arbitration

Mega-project contracts differ fundamentally from ordinary commercial contracts.

A. Long project duration

Infrastructure projects can continue for many years. During that period:

• prices change;
• regulations change;
• technology changes;
• governments change;
• financing conditions change;
• environmental conditions may become different from those originally anticipated.

This creates disputes over whether the resulting risk belongs to the employer, contractor, concessionaire or government.

B. High contract value

A delay of six months in a major railway or power project can result in millions or even billions in alleged losses.

Consequently, parties frequently prefer arbitration over ordinary litigation because the arbitration agreement can provide a specialized dispute-resolution mechanism.

C. Technical complexity

Disputes may require expertise concerning:

• geotechnical engineering;
• structural engineering;
• tunnelling;
• railway signalling;
• electrical systems;
• marine engineering;
• project scheduling;
• quantity surveying;
• delay analysis;
• valuation;
• environmental science.

The tribunal can therefore include arbitrators experienced in construction, engineering or infrastructure disputes.

D. Multiple contractual documents

Mega-projects often involve:

• EPC contracts;
• concession agreements;
• PPA agreements;
• O&M agreements;
• financing documents;
• direct agreements;
• government-support agreements;
• supply contracts;
• subcontracting agreements.

Inconsistency between these documents can itself become an arbitration issue.

3. Principal Contractual Models

A. EPC contracts

Under an Engineering, Procurement and Construction (EPC) contract, the contractor normally undertakes responsibility for designing and constructing the project.

The contractor may therefore assume substantial risk relating to:

• design;
• procurement;
• construction;
• commissioning;
• performance testing.

A typical dispute might be:

The employer says that the plant failed to achieve guaranteed output; the contractor argues that the failure resulted from defective employer specifications or unforeseen conditions.

Such disputes are frequently arbitrated.

B. Design-and-build contracts

The contractor performs both design and construction.

This creates an important question:

Who bears the risk if the design proves defective?

The answer depends heavily upon the contractual allocation of risk.

The MT Højgaard litigation is particularly instructive. The offshore wind project incorporated technical standards but also contained requirements concerning a minimum design life. The Supreme Court concluded that the contractor could remain liable for the specified performance requirement notwithstanding compliance with the referenced technical standard.

C. FIDIC contracts

FIDIC contracts are widely used in international infrastructure.

Common forms include:

• Red Book;
• Yellow Book;
• Silver Book;
• Gold Book.

FIDIC contracts typically contain elaborate mechanisms for:

1. Engineer's determinations;
2. claims;
3. dispute avoidance/adjudication;
4. dispute adjudication boards;
5. amicable settlement;
6. arbitration.

Consequently, arbitration is frequently the final stage of the dispute-resolution process.

4. Typical Arbitration Clause in a Mega-Project

A well-designed clause should address:

• seat of arbitration;
• governing law;
• institutional rules;
• number of arbitrators;
• appointment mechanism;
• language;
• consolidation;
• joinder;
• emergency measures;
• confidentiality;
• technical experts;
• interim relief;
• expedited proceedings;
• enforcement.

For example:

“Any dispute arising out of or in connection with this Agreement, including any question concerning its existence, validity, interpretation, performance, breach or termination, shall be finally resolved by arbitration under the applicable institutional arbitration rules. The seat of arbitration shall be [X]. The tribunal shall consist of three arbitrators. The language shall be English.”

For a mega-project, a narrow clause such as “disputes concerning payment shall be arbitrated” may be inadequate because many disputes concern delay, design, termination, regulatory action and performance rather than payment alone.

5. Major Categories of Infrastructure Arbitration

5.1 Delay and Extension-of-Time Claims

Delay is perhaps the most common mega-project dispute.

The contractor may allege:

• employer-caused delay;
• late possession of site;
• late drawings;
• late approvals;
• variation orders;
• utility relocation;
• governmental interference.

The employer may respond:

• contractor-caused delay;
• inadequate resources;
• defective planning;
• concurrent delay;
• failure to mitigate.

The tribunal may have to reconstruct the project schedule and determine the critical path.

Expert evidence is often essential.

6. Delay Analysis

Common methodologies include:

1. As-planned versus as-built

The tribunal compares the original programme with actual performance.

2. Time-impact analysis

Individual delaying events are inserted into the programme to determine their effect.

3. Windows analysis

The project is divided into chronological periods and the causes of delay are examined in each window.

4. Critical-path analysis

The tribunal determines whether the alleged event actually affected activities on the critical path.

7. Cost Overrun Claims

Mega-projects frequently exceed their original budgets.

Contractors may claim additional costs resulting from:

• inflation;
• design changes;
• unforeseen ground conditions;
• regulatory changes;
• employer delay;
• acceleration;
• shortage of materials;
• labour shortages;
• supply-chain disruption.

The employer may argue that the contractor assumed the relevant risk under a fixed-price EPC arrangement.

The arbitration therefore becomes an exercise in contractual risk allocation.

8. Design Responsibility

A major question is whether the contractor owes merely a reasonable skill and care obligation or a more stringent fitness-for-purpose/performance obligation.

This distinction can be worth enormous sums.

In MT Højgaard A/S v E.ON, the Supreme Court found that contractual requirements concerning a 20-year design life imposed significant responsibility on the contractor, even though the project documents also incorporated an engineering standard.

Lesson: technical specifications should never be treated as merely engineering documents. They are contractual risk-allocation instruments.

9. Variations and Change Orders

Mega-projects almost inevitably undergo changes.

Examples include:

• additional railway stations;
• route alterations;
• additional tunnel sections;
• upgraded signalling;
• environmental mitigation;
• increased capacity;
• new safety requirements.

The dispute often concerns:

Was this a contractual variation or work already included in the original scope?

The tribunal must interpret:

• scope of work;
• variation provisions;
• pricing provisions;
• notice requirements;
• approval mechanisms.

10. Unforeseen Ground Conditions

Tunnel, highway, metro and dam projects are particularly vulnerable.

Examples include:

• unexpected rock;
• groundwater;
• contaminated soil;
• underground utilities;
• unstable geological formations;
• archaeological discoveries.

The legal question becomes:

Who assumed the geological risk?

The answer depends on:

• geotechnical reports;
• site investigation clauses;
• disclaimers;
• employer-provided information;
• contractor inspection obligations;
• differing-site-condition provisions.

11. Force Majeure and Exceptional Events

Mega-project contracts commonly contain force-majeure or exceptional-event provisions.

Possible events include:

• earthquakes;
• floods;
• war;
• civil unrest;
• government restrictions;
• pandemics;
• extraordinary supply disruptions.

The tribunal must distinguish between:

an event that makes performance impossible or contractually excusable

and

ordinary commercial difficulty or increased cost.

12. Governmental and Regulatory Risk

Infrastructure projects often depend upon governmental decisions.

Examples include:

• environmental approvals;
• land acquisition;
• construction permits;
• tariff approvals;
• route approvals;
• environmental regulations;
• customs restrictions;
• changes in tax law.

Where the government is itself a contractual party, the dispute may combine public-law and private contractual considerations.

Where the government is not the contracting party, the contractor may have claims against the employer if governmental action falls within the employer's contractual risk.

13. Public-Private Partnership Projects

PPPs create particularly complex arbitration structures.

Typical arrangement:

Government → PPP/SPV → EPC Contractor → Operator

The PPP agreement may contain one arbitration clause, while the EPC contract contains another.

Potential disputes include:

• concession termination;
• tariff adjustments;
• availability payments;
• construction delay;
• minimum revenue guarantees;
• change in law;
• government default;
• political risk;
• refinancing;
• termination compensation.

The possibility of multiple arbitrations arising from the same physical project makes coordination particularly important.

14. Concession Disputes

Concession agreements may run for decades.

Typical disputes concern:

• concession duration;
• toll rates;
• revenue-sharing;
• minimum traffic guarantees;
• maintenance standards;
• government interference;
• early termination.

The tribunal may have to distinguish contractual rights from regulatory powers that cannot simply be transformed into private contractual obligations.

15. Termination Disputes

Termination can be economically devastating in a mega-project.

The parties may dispute whether termination was:

• for contractor default;
• for employer default;
• for convenience;
• for prolonged force majeure;
• for insolvency;
• for failure to achieve completion milestones.

The tribunal may consider:

1. whether the contractual termination trigger occurred;
2. whether notice was valid;
3. whether cure periods were observed;
4. whether termination was contractually proportionate;
5. what compensation follows.

16. Performance Guarantees

Infrastructure projects frequently contain guarantees relating to:

• power output;
• energy efficiency;
• railway capacity;
• water-treatment capacity;
• fuel consumption;
• availability;
• emissions;
• structural performance.

Failure can result in:

• liquidated damages;
• performance deductions;
• rejection;
• remedial obligations;
• termination.

The tribunal must carefully distinguish liquidated damages from unenforceable penalties where the applicable law makes that distinction relevant.

17. Liquidated Damages

A typical EPC contract might state:

“The Contractor shall pay 0.1% of the Contract Price for each day of delay, subject to a maximum of 10%.”

Disputes may concern:

• whether the completion date was actually missed;
• whether the employer caused the delay;
• whether extensions of time were available;
• whether liquidated damages are enforceable;
• whether the contractual cap applies.

18. Interim Measures

Mega-project arbitration often requires urgent relief.

A tribunal may be asked to order:

• preservation of evidence;
• continuation of works;
• protection of equipment;
• security for claims;
• restraint against encashment of guarantees, where legally available;
• preservation of project records;
• inspection of defective works.

This is especially important because waiting for a final award may be commercially useless if the project has already collapsed.

19. Bank Guarantees and Performance Bonds

Infrastructure contracts commonly require:

• advance-payment guarantees;
• performance guarantees;
• retention guarantees;
• parent-company guarantees.

Disputes frequently arise when an employer seeks to call a guarantee after alleged contractor default.

Courts may become involved notwithstanding the arbitration agreement because the guarantee may constitute a separate banking obligation.

This creates an important distinction:

Underlying EPC dispute ≠ necessarily identical guarantee dispute.

20. Evidence in Mega-Project Arbitration

Mega-project arbitration can involve millions of documents.

Important evidence includes:

• contracts;
• drawings;
• BIM models;
• project schedules;
• site diaries;
• emails;
• meeting minutes;
• variation orders;
• inspection reports;
• photographs;
• payment certificates;
• quality-control records;
• geotechnical data;
• expert reports.

Modern arbitration therefore increasingly depends on sophisticated document-management and electronic-discovery procedures.

21. Expert Evidence

Experts may be required in:

• delay analysis;
• quantum;
• engineering;
• geotechnical matters;
• structural failures;
• valuation;
• programming;
• energy output;
• environmental impact.

A tribunal may use:

• party-appointed experts;
• tribunal-appointed experts;
• concurrent expert evidence;
• expert conferencing or “hot-tubbing”.

22. Six Important Case Laws

Case 1 — MT Højgaard A/S v E.ON Climate & Renewables UK Robin Rigg East Ltd

[2017] UKSC 59

Facts

MT Højgaard designed and installed foundations for two offshore wind farms at Robin Rigg. The foundations subsequently suffered serious problems. The contract incorporated the technical standard J101 while also containing requirements concerning a minimum 20-year design life.

Issue

Did compliance with the specified technical standard protect the contractor from liability when the foundations failed to satisfy the contractual design-life requirement?

Decision

The Supreme Court held that the contractor was liable. The contractual requirements imposed an obligation concerning the 20-year design life, notwithstanding the reference to J101.

Importance

The case demonstrates that infrastructure contracts must be read as a whole.

A contractor cannot necessarily rely on compliance with an engineering standard if another contractual provision imposes a more demanding performance obligation.

Mega-project lesson

Technical specifications, performance requirements and standards must be carefully reconciled during contract drafting.

Case 2 — Obrascon Huarte Lain SA v HM Attorney General for Gibraltar

[2014] EWHC 1028 (TCC)

This case concerned construction of a road and tunnel under Gibraltar Airport pursuant to a FIDIC-based contract. The project involved substantial issues concerning delay, ground conditions, design and termination.

The case is particularly significant for FIDIC projects because it examined the operation of FIDIC Sub-Clause 20.1, including notice requirements. The underlying project was the construction of a new road and tunnel under the airport runway.

Importance

It demonstrates the importance of:

• contractual notice provisions;
• employer's information;
• site conditions;
• contractor's knowledge;
• termination rights.

Mega-project lesson

A contractor should not assume that a substantive entitlement automatically survives failure to comply with a contractual claims procedure.

Notice provisions can become economically decisive.

Case 3 — PT Prima International Development v Kempinski Hotels SA

[2012] 4 SLR 98; [2012] SGCA 35

Although arising from a hotel-management project rather than a traditional railway or highway project, this is an important international arbitration authority concerning the scope of the dispute submitted to arbitration.

The Singapore Court of Appeal considered whether matters arising during the arbitration fell within the tribunal's mandate. It emphasized the relationship between the parties' pleaded cases, the dispute submitted to arbitration and procedural fairness.

Importance for infrastructure projects

Mega-project disputes evolve rapidly.

New matters may arise concerning:

• revised designs;
• new contracts;
• subsequent events;
• regulatory changes;
• mitigation;
• replacement contractors.

The tribunal must determine whether such matters are:

1. genuinely new disputes; or
2. developments connected with the existing dispute.

Lesson

The arbitration clause should be drafted broadly enough to cover disputes arising out of or in connection with the project agreement, while procedural orders should clearly define the issues.

The Singapore Court of Appeal ultimately addressed the relationship between pleadings and the tribunal's jurisdiction.

Case 4 — Kempinski Hotels SA v PT Prima International Development

[2011] SGHC 171, [2011] SGHC 172 and [2011] SGHC 173

These proceedings involved challenges to several arbitral awards arising from the same arbitration. The Singapore High Court considered the scope of the arbitrator's authority and procedural issues surrounding the awards.

The Court's decisions demonstrate how a complex arbitration can produce multiple procedural challenges.

Importance for mega-projects

Mega-project arbitrations can last for years and generate:

• interim awards;
• partial awards;
• jurisdictional decisions;
• costs decisions;
• procedural orders;
• final awards.

Parties should therefore anticipate the possibility of challenges to individual stages of the arbitration.

Lesson

Procedural discipline is crucial. A tribunal should ensure that parties receive adequate opportunity to present their cases and that awards remain within the tribunal's jurisdiction.

Case 5 — Balfour Beatty Construction Ltd v Mayor and Burgesses of the London Borough of Lambeth

[2002] EWHC 597 (TCC)

This case concerned a construction dispute and the fairness of adjudicative decision-making.

The court emphasized that where an adjudicator adopts a significant analytical approach that was not advanced by either party, the parties should have an opportunity to address it. Failure to provide such an opportunity may constitute a breach of natural justice.

Relevance to arbitration

The principle is highly relevant to arbitral tribunals.

A tribunal should not:

• construct a case for one party;
• decide a material issue without giving parties an opportunity to respond;
• surprise the parties with a fundamentally different legal or factual basis for decision.

Mega-project lesson

Because infrastructure arbitrations involve enormous technical records, procedural fairness is as important as substantive correctness.

A technically brilliant award can nevertheless be vulnerable if a party was denied a fair opportunity to present its case.

Case 6 — MT Højgaard A/S v E.ON Climate & Renewables UK Robin Rigg East Ltd — Earlier TCC Decision

[2014] EWHC 1088 (TCC)

The earlier High Court decision in the Robin Rigg dispute is also instructive because it illustrates how the same contractual dispute can develop through multiple levels of judicial review.

The first-instance court held that the contractor had a fitness-for-purpose/design-life obligation in relation to the wind-farm foundations.

The Court of Appeal subsequently took a different approach, before the Supreme Court ultimately restored the first-instance result.

Importance

This illustrates an important feature of mega-project disputes:

Contract interpretation may produce radically different outcomes at different levels of adjudication.

Therefore, parties should draft technical requirements with exceptional precision.

23. Additional Important Authorities

Several other construction authorities are particularly useful when analysing infrastructure arbitration.

Carillion Construction Ltd v Devonport Royal Dockyard Ltd

The case is an important authority concerning adjudication, construction disputes and the courts' approach to enforcing adjudicators' decisions. It is frequently discussed in the broader context of construction dispute resolution.

Lim Chin San Contractors Pte Ltd v LW Infrastructure Pte Ltd

A Singapore construction arbitration authority illustrating the interaction between construction disputes and arbitration procedure. Singapore's courts have developed a substantial body of jurisprudence supporting arbitration while maintaining limited judicial intervention.

PT Asuransi Jasa Indonesia (Persero) v Dexia Bank SA

This Singapore authority is relevant to questions concerning the scope of arbitration and the tribunal's mandate and was discussed in the later PT Prima litigation.

24. Multi-Party Arbitration

Mega-projects are rarely two-party projects.

For example:

Government
↓
Concessionaire
↓
EPC Contractor
↓
Joint Venture
↓
Subcontractors

At the same time:

Lenders → Security Agent → Project Company

A defect may therefore produce claims against several entities.

The problem is that each contract may contain a different arbitration agreement.

This raises questions of:

• joinder;
• consolidation;
• compatible arbitration clauses;
• tribunal constitution;
• common questions of fact;
• inconsistent awards.

25. Joint Ventures

Large infrastructure projects are often performed by consortiums.

For example:

Contractor A + Contractor B + Contractor C = Project JV

The consortium agreement must determine:

• responsibility for work packages;
• allocation of liability;
• authority to commence arbitration;
• appointment of arbitrators;
• responsibility for costs;
• contribution between JV members.

A failure to coordinate the arbitration clauses in the JV agreement and EPC contract can create serious jurisdictional problems.

26. Public International Law and Investment Arbitration

Some mega-project disputes may additionally involve investment treaties.

For example, a foreign infrastructure investor may allege:

• expropriation;
• unfair and inequitable treatment;
• discriminatory treatment;
• breach of legitimate expectations.

This creates a distinction between:

Commercial arbitration

Based upon the project contract.

Investment arbitration

Based upon:

• bilateral investment treaties;
• multilateral investment treaties;
• investment legislation;
• State consent to arbitration.

The same infrastructure project can potentially generate both types of proceedings, although their legal bases and remedies are different.

27. Confidentiality

Confidentiality can be extremely valuable for infrastructure projects.

Disputes may reveal:

• construction technology;
• pricing;
• financing arrangements;
• government negotiations;
• proprietary engineering;
• commercially sensitive bids.

However, confidentiality is not necessarily absolute.

Disclosure may be required because of:

• court proceedings;
• regulatory obligations;
• lenders;
• auditors;
• statutory requirements;
• enforcement proceedings.

The arbitration agreement and procedural orders should therefore clearly address confidentiality.

28. Emergency Arbitration

Emergency arbitration can be valuable when immediate relief is necessary.

For example:

The employer threatens to terminate an EPC contract tomorrow, while the contractor alleges that the termination would destroy the project.

An emergency arbitrator may provide interim relief where the institutional rules and applicable law permit.

This can be particularly useful because ordinary arbitration may take months or years before a final award.

29. Security for Costs

Mega-project arbitrations can involve claims worth hundreds of millions or billions.

A respondent may argue:

“The claimant is financially incapable of satisfying an adverse costs award.”

The tribunal may therefore be asked to order security for costs, subject to the applicable arbitration rules and law.

Factors can include:

• financial condition;
• corporate structure;
• third-party funding;
• enforceability of a costs award;
• conduct of the claimant.

30. Third-Party Funding

Because mega-project arbitration is extraordinarily expensive, parties may use third-party funding.

Funding can cover:

• lawyers;
• experts;
• tribunal fees;
• document review;
• technical consultants.

The tribunal may need to consider:

• disclosure of funding;
• conflicts of interest;
• security for costs;
• confidentiality.

31. Quantum in Mega-Project Arbitration

Quantum claims can be exceptionally complicated.

A contractor may claim:

Direct costs

• labour;
• materials;
• equipment.

Indirect costs

• site overhead;
• head-office overhead;
• financing costs.

Delay costs

• extended preliminaries;
• equipment standby;
• staff costs.

Loss of profit

• anticipated project profit;
• lost opportunities.

Disruption

• reduced productivity;
• resequencing;
• inefficient working.

Experts often construct sophisticated financial models to quantify these losses.

32. Concurrent Delay

One of the most difficult issues is concurrent delay.

Suppose:

• Employer delays excavation by 60 days; and
• Contractor's defective planning independently causes 60 days of delay.

The tribunal must determine:

• whether both events caused delay;
• which event affected the critical path;
• whether the contract contains a concurrency rule;
• whether the contractor receives an extension of time;
• whether compensation is available.

This is why project scheduling evidence is fundamental.

33. BIM and Digital Evidence

Modern mega-projects increasingly use:

• Building Information Modelling;
• digital twins;
• automated scheduling;
• drone photography;
• digital site records;
• electronic correspondence.

These records can become crucial evidence.

A dispute may involve reconstructing:

“What did the project actually look like on 14 March at 10:32 a.m.?”

Digital records can provide powerful evidence of:

• progress;
• defects;
• access;
• sequencing;
• site conditions.

34. Cybersecurity in Infrastructure Arbitration

Mega-projects can involve sensitive information concerning:

• transport networks;
• energy systems;
• defence infrastructure;
• public utilities;
• government systems.

Arbitration proceedings should therefore establish:

• secure document platforms;
• access controls;
• encryption;
• authentication;
• confidentiality protocols;
• procedures for cyber incidents.

35. The Role of Dispute Boards

Many FIDIC-style projects use:

• Dispute Adjudication Boards;
• Dispute Avoidance/Adjudication Boards;
• Dispute Review Boards.

Their purpose is to resolve disputes while construction continues.

The sequence may be:

Project dispute → Engineer's determination → DAB/DAAB → Amicable settlement → Arbitration

This is valuable because immediate project resolution may be more important than obtaining a final legal determination years later.

36. Arbitration Versus Litigation

37. Advantages of Arbitration in Mega-Projects

1. Specialist decision-makers

Parties can appoint arbitrators with construction and engineering expertise.

2. Neutral forum

A foreign contractor may prefer a neutral seat rather than litigating in the host State.

3. International enforceability

Arbitral awards benefit from the international enforcement system established by the New York Convention, subject to its requirements and exceptions.

4. Confidentiality

Commercially sensitive project information can receive greater protection.

5. Procedural flexibility

The tribunal can tailor the proceedings to the technical complexity of the dispute.

6. Cross-border suitability

One project may involve companies from several jurisdictions.

38. Disadvantages

Arbitration is not automatically cheaper or faster.

Mega-project arbitrations can last years and involve:

• extensive document production;
• multiple experts;
• thousands of witnesses and documents;
• enormous hearing bundles;
• complex procedural applications.

A three-member tribunal plus multiple expert teams can generate substantial costs.

Therefore, arbitration must be actively managed.

39. Best Practices for Drafting Mega-Project Arbitration Clauses

A sophisticated clause should specify:

1. seat of arbitration;
2. institution and rules;
3. number of arbitrators;
4. appointment procedure;
5. language;
6. governing substantive law;
7. consolidation;
8. joinder;
9. emergency arbitration;
10. interim measures;
11. confidentiality;
12. expert evidence;
13. document production;
14. electronic evidence;
15. virtual hearings;
16. award deadlines where appropriate.

40. Key Lessons from the Case Law

The case law demonstrates six particularly important principles.

Principle 1 — Contractual risk allocation controls

MT Højgaard v E.ON shows that contractual performance requirements can impose obligations beyond compliance with a technical standard.

Principle 2 — FIDIC notice provisions matter

Obrascon demonstrates the importance of complying with contractual claims mechanisms in FIDIC-based infrastructure contracts.

Principle 3 — Tribunal jurisdiction must be respected

PT Prima v Kempinski illustrates the importance of identifying whether a particular issue falls within the dispute submitted to arbitration.

Principle 4 — Procedural fairness is fundamental

The Balfour Beatty v Lambeth litigation demonstrates the consequences of deciding matters without giving parties a proper opportunity to address them.

Principle 5 — Complex arbitrations require procedural discipline

The multiple Kempinski v Prima proceedings show how interim awards and procedural decisions can themselves become the subject of judicial challenges.

Principle 6 — Technical drafting is legal drafting

The Robin Rigg litigation demonstrates that seemingly technical requirements—such as design life and engineering standards—can determine tens of millions of euros of liability.

41. Conclusion

Arbitration has become a central dispute-resolution mechanism for infrastructure mega-projects because these projects combine enormous financial exposure, technical complexity, long-term contractual relationships and cross-border participation.

The most significant disputes generally concern:

• delay;
• disruption;
• variations;
• cost escalation;
• defective design;
• defective construction;
• performance guarantees;
• unforeseen ground conditions;
• governmental action;
• force majeure;
• termination;
• concession rights;
• payment;
• guarantees and bonds.

The case law demonstrates that successful mega-project arbitration depends not merely on having an arbitration clause. It requires careful allocation of project risks, coherent contract documentation, effective claims management, rigorous notice procedures, technically competent experts, procedural fairness and a carefully drafted arbitration agreement.