1. Context of EPC Contracts in Biomass Power Plants

EPC (Engineering, Procurement, and Construction) contracts are standard in biomass power plant projects. These contracts cover:

Engineering / design of the plant (boilers, turbines, fuel handling, emission control)

Procurement of key equipment and fuel-handling systems

Construction / civil, mechanical, and electrical works

Commissioning and performance guarantees

Common disputes in biomass projects:

Delay in project completion – Contractor fails to commission plant on agreed timeline.

Underperformance – Plant fails to achieve guaranteed capacity (MW) or efficiency (kWh/t of biomass).

Cost overruns – Variations or unforeseen conditions increase expenses; disputes on who bears them.

Quality issues – Substandard boilers, turbines, or control systems.

Fuel supply issues – Contractor or owner fails to ensure consistent biomass feedstock.

Contractual breaches – Failure to meet milestones, warranties, or technical specifications.

Arbitration is preferred because:

Projects often involve cross-border suppliers and contractors.

Technical disputes require expert determination.

Confidentiality and speed are critical in energy projects.

2. Legal and Contractual Framework

Typical EPC Contract Clauses Leading to Arbitration:

Completion milestones – Dates for mechanical completion, commissioning, and commercial operation.

Performance guarantees – Electrical output, efficiency, emissions compliance.

Liquidated damages – For delays or underperformance.

Variation / change orders – Scope adjustments and cost implications.

Force majeure / excusable delays – Weather, regulatory delays, or biomass availability.

Termination clauses – Rights in case of material breach.

Arbitration Issues:

Determining cause of breach: contractor vs. owner responsibility.

Assessing quantum of damages: LDs, remediation costs, lost revenue.

Handling technical disputes: plant efficiency, emissions, fuel handling.

Interpreting contractual notice and documentation requirements.

3. Common Arbitration Scenarios in Biomass EPC Contracts

4. Illustrative Arbitration Case Laws

Case 1: Delay in Mechanical Completion

Summary: Contractor failed to complete civil and mechanical works for biomass plant on time. Employer claimed liquidated damages.

Arbitration Finding: Contractor liable; EOT denied as delay was due to contractor negligence. LDs imposed.

Principle: Contractors must adhere strictly to EPC milestones; unexcused delays trigger LDs.

Case 2: Underperformance of Electrical Output

Summary: Plant failed to achieve guaranteed 15 MW output during commissioning tests. Contractor blamed fuel quality.

Arbitration Finding: Contractor partially liable; output shortfall due to design inefficiency. LDs applied for attributable portion.

Principle: EPC contractors are responsible for achieving performance guarantees unless excused by owner-provided inputs.

Case 3: Boiler Defect and Rectification Costs

Summary: Biomass boiler showed repeated failures within 6 months of commissioning.

Arbitration Finding: Contractor liable for replacement and all rectification costs; LDs also imposed for downtime.

Principle: Defective equipment supplied under EPC contract is a material breach.

Case 4: Delay Due to Fuel Supply

Summary: Underperformance occurred because owner failed to provide biomass feedstock as per contract.

Arbitration Finding: Delay excused; contractor not liable for LDs or damages.

Principle: EPC contractor’s liability is mitigated if delay arises from owner’s breach of supply obligations.

Case 5: Variation Orders Dispute

Summary: Employer issued late variations requiring additional civil and mechanical works. Contractor claimed cost reimbursement and EOT.

Arbitration Finding: Contractor entitled to additional costs and 60-day extension.

Principle: Variations instructed by employer under EPC contract justify additional costs and time if properly documented.

Case 6: Termination for Non-Performance

Summary: Owner terminated EPC contract citing persistent underperformance and delay. Contractor claimed wrongful termination.

Arbitration Finding: Arbitrator upheld termination; contractor liable for damages including LDs until termination date.

Principle: Persistent failure to meet EPC obligations can justify contract termination; proper notice and documentation are crucial.

5. Key Takeaways

Strict adherence to EPC milestones is critical; delays or underperformance can lead to LDs.

Document performance: commissioning reports, test results, fuel quality logs, and variations.

Performance guarantees should be explicit regarding output, efficiency, and test conditions.

Force majeure / excusable delays clauses are vital to protect contractors from events outside their control.

Variation management: Contractor must document change orders and request EOT and cost adjustments.

Independent expert evidence is often decisive in arbitration, especially for performance shortfall claims.

Early termination is risky; employers must follow contract procedures precisely to avoid wrongful termination claims.