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CAEs and public funding

CAEs and Public Grants: How to Check Compatibility

A method for checking compatibility, limits and obligations when a project combines CAEs with grants or other public support.

Updated 10 August 2026Reading time : 4 min

Receiving a grant neither automatically excludes nor authorises access to the CAE system. Compatibility depends on the CAE framework, scheme rules, call, award decision and limits such as maximum funding, double financing or State-aid controls. Review should precede any commitment of savings rights or formal declaration.

Collect every applicable rule

Compatibility review begins with an inventory of every public support measure connected to the action, not merely the best-known grant. Collect the scheme rules, call, award decision, amendments, payment requests and beneficiary declarations. Record the granting authority, beneficiary, funded object, eligible cost categories, dates and financing source. The CAE framework must then be reviewed alongside those documents. There is an express exclusion: under Article 14.8 of Order TED/815/2023, an action benefiting from an aid programme financed by the FNEE may under no circumstances be the subject of an application for CAE issuance. This prohibition is specific to FNEE-financed aid and does not, by itself, extend to other aid, whose compatibility must be assessed case by case.

Compare the objects of support. A grant may fund equipment purchase, incremental investment, technical assistance or a broader renovation, while CAEs concern eligible energy savings under their own rules. Overlapping project descriptions do not prove identical funded cost, and different labels do not prove separation. Build a cost map linking each invoice and cost category to the aid calculation and the CAE action. This provides the factual basis for analysing double financing, intensity limits and disclosure duties.

Compare objects, costs and beneficiaries

Identify the relevant beneficiary and holder separately. The grant recipient may be an owner, tenant, municipality, ESCO or group company, while the party able to dispose of savings requires its own analysis. Conditions imposed on the beneficiary can restrict transfer, revenue or modification even when another party claims CAE rights. Review consortium, lease and energy-service arrangements so that one entity's declaration does not overlook aid or commitments sitting elsewhere in the contractual structure.

Cumulation tests depend on the applicable programme and, where relevant, State-aid rules. Determine which public resources support the same eligible costs, the maximum permitted intensity or amount, and the method prescribed for cumulation. Do not subtract a guessed CAE value from a grant mechanically. The FNEE financial equivalence is not necessarily the project's contractual CAE consideration or the amount treated as aid. Obtain specialist advice where classification or calculation remains uncertain.

Control cumulation and double funding

The award decision may contain bespoke obligations beyond the published call. Check duties to report other finance, preserve purpose, maintain assets, obtain consent before changes, publicise support and retain documents. A CAE transfer or receipt could trigger notification even if compatibility appears possible in principle. Capture deadlines and the authority responsible for clarification. Informal statements should be documented cautiously and should not displace a formal interpretation required under the programme.

Chronology can change the analysis. Note application, award, project start, contracting, commissioning, CAE agreement and payment dates. Some rules assess incentive effect or financing at a particular moment; others govern changes after award or during a durability period. A clause signed after completion cannot rewrite the historical funding facts. If the action changed after award, reconcile the approved scope with actual invoices and technical evidence before making any compatibility representation.

Allocate risks and declarations

Contracts should allocate information and remediation duties. The party providing grant information can warrant completeness, promise timely notice of amendments and cooperate with audits. Terms should address reduction of CAE consideration, grant adjustment, recovery claims, interest, delay and responsibility for inaccurate statements. These remedies distribute private risk but do not bind the granting authority or CAE administration. Avoid a blanket guarantee of compatibility where the conclusion depends on interpretation or future control.

Maintain a compatibility matrix with one row per rule and columns for source, requirement, project fact, supporting document, assessment, reviewer and open action. Include CAE eligibility, grant conditions, eligible costs, cumulation, double funding, environmental attributes, revenue treatment and reporting. Distinguish confirmed facts from legal conclusions. Where an answer is missing, seek clarification, narrow the CAE perimeter or pause the transfer rather than filling the gap with a generic declaration.

Keep a reviewable conclusion

Before filing, reconcile statements across both dossiers. Project cost, location, beneficiary, dates, equipment and financing should not conflict without explanation. Preserve versions of calculations and correspondence so a later audit can understand the conclusion reached at the time. Accounting and tax teams should assess treatment of any receipt and possible repayment provision. Approval should identify residual risks and the event that would require reassessment, such as an amended award or reduced eligible cost.

A documented compatibility opinion is necessarily specific to the action and rules then in force. It should state scope, assumptions, unresolved points and reliance on any authority response. Successful cumulation in another project is not a precedent guaranteeing this one, and participation in CAEs does not protect a beneficiary from grant recovery. Careful mapping can support both routes where permitted, but no analysis guarantees certificate issuance, continued aid, a particular payment or freedom from later review.

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