Cross-border electricity power purchase agreements (PPAs) can secure delivery volumes and revenue while leaving a significant financial exposure unresolved: who pays when imported electricity fails to qualify for the expected actual-emissions treatment under the EU Carbon Border Adjustment Mechanism (CBAM)? Without explicit contractual provisions, an EU buyer may face additional carbon costs and a dispute over whether the electricity producer must compensate for the shortfall.
The issue extends beyond physical delivery. Electricity can be generated, nominated, imported and paid for while failing the documentary or verification requirements needed to substantiate actual embedded emissions. The resulting financial dispute concerns the difference between the expected carbon treatment and the treatment ultimately accepted under the applicable rules.
Eligible electricity volumes and verification procedures
Conventional PPA remedies typically value a shortfall in delivered electricity against the replacement market price. CBAM introduces a separate risk: a delivered megawatt-hour may lose its anticipated actual-emissions treatment because of missing metering records, mismatched hourly nominations, gaps in contractual traceability or inadequate verification.
Contracts should therefore distinguish the eligible electricity quantity from total metered generation, invoiced energy and imported volumes. A dedicated contractual schedule can establish monthly provisional reconciliations and an annual adjustment following the accredited verifier’s conclusion.
The parties may agree to pay a provisional premium for renewable electricity volumes supported by hourly evidence while withholding part of that premium until all documentary requirements are satisfied. They should also establish deadlines for correcting records and define when an unresolved evidence deficiency becomes a compensable contractual failure.
Allocating responsibility according to control
Contractual responsibility should reflect which party controls the relevant information or operational process. The producer generally controls plant meters, generation data and information about the installation. The nominated trader typically manages scheduling and may control certain capacity rights. The EU importer is responsible for its CBAM declaration and decisions concerning certificate purchases and surrender.
Where evidence of physical congestion must be obtained from a transmission system operator (TSO), the agreement should identify which party requests the relevant records. It should also address delayed or unavailable evidence without assuming that a private contractual guarantee can compel a TSO to issue documentation.
This allocation helps distinguish failures attributable to the generating installation from problems arising in scheduling, transmission or the importer’s own compliance process.
Carbon-cost calculations and fallback provisions
A carbon-risk clause should define how additional exposure is calculated when electricity loses its expected eligibility. One approach is to determine the incremental carbon cost attributable to the affected volume using the legally applicable CBAM emissions factor and certificate reference for the relevant period, rather than applying a fixed penalty based on a forecast carbon price.
Any adjustment for recognised carbon payments made abroad must follow the applicable legislation. It should not be deducted automatically from a trader’s invoice without establishing that the relevant statutory conditions are met.
An alternative commercial structure is to make the qualification premium conditional on successful verification, with the premium withdrawn if eligibility fails. A narrower indemnity can address intentional or negligent misstatements, distinguishing those circumstances from failures outside the seller’s control.
Liability caps, insurance and change-in-law protection
A bankable PPA must allocate carbon exposure without imposing unlimited liability for events a party cannot reasonably control. A generator may resist bearing losses caused by an EU buyer’s late declaration or a general regulatory change. Conversely, an importer may reject a liability cap that leaves it exposed to most of the losses arising from inaccurate installation data.
Negotiators can establish separate liability caps for ordinary operational errors, gross misrepresentation and changes in law. Where insurance is available, the agreement can address its use alongside correction periods and other remedies. Any cure period must remain compatible with applicable statutory reporting and filing deadlines.
Illustrative exposure under 2026 certificate pricing
The third-quarter 2026 CBAM certificate reference price of €82.32 per tonne of CO₂e illustrates the potential financial scale of an eligibility failure.
In a hypothetical case involving 10,000 MWh of electricity, a change from an expected near-zero actual emissions factor to an assumed default factor of 0.8 tonnes of CO₂ per MWh would produce illustrative gross exposure of approximately €658,560, before statutory adjustments.
This is a scenario calculation, not a statement of the applicable default emissions factor for any specific country or a determination of final certificate liability. The actual amount would depend on the legally applicable emissions value and other relevant regulatory provisions.
Evidence preservation and dispute resolution
Contractual procedures should require the preservation of original nomination files, TSO confirmations, meter exports and verification correspondence. These records can help establish whether an eligibility failure arose from generation data, scheduling, transmission evidence or another contractual obligation.
An expert-determination mechanism may provide a faster route for resolving technical disputes concerning measurements and supporting records. Questions of contractual interpretation would remain subject to the agreed dispute-resolution forum.
Effective carbon-risk provisions therefore need to connect the financial consequences of an eligibility failure to the responsibilities and evidence controlled by each party, rather than relying exclusively on a broad seller guarantee or a general buyer disclaimer.
