Renewable electricity producers seeking to use installation-specific emissions under the European Union’s Carbon Border Adjustment Mechanism (CBAM) face stricter evidence requirements covering contracts, physical electricity flows, hourly nominations and verification.
A green electricity MRV dashboard developed by engineering consultancy Clarion.Engineer combines plant data, power purchase agreements, electricity meters, grid nominations, battery operations and verification records. The framework targets solar, wind and battery projects exporting electricity to the EU or supplying buyers whose cross-border electricity purchases fall under CBAM. Solar and wind projects have low operational emissions, but renewable origin alone does not allow an authorised CBAM declarant to use actual installation emissions instead of the applicable default value.
Five Conditions for Installation-Specific Emissions
European Commission guidance published in August sets out five cumulative conditions for using actual emissions from a specific installation. The claimed electricity must be covered by a power purchase agreement between the authorised CBAM declarant and the third-country producer. The plant must be directly connected to the EU transmission system, or the parties must demonstrate that no physical network congestion existed between the installation and the Union transmission system at export.
The installation must emit no more than 550 grammes of fossil-fuel CO₂ per kilowatt-hour. Electricity must also be firmly nominated against allocated interconnection capacity in the origin, destination and transit countries. Production and nomination must cover the same period, which cannot exceed one hour. Finally, an accredited verifier must certify compliance and receive monthly interim evidence demonstrating that the requirements were met. Guarantees of origin and other renewable certificates can support traceability but cannot independently establish eligibility for the actual-emissions route.
MRV Dashboard Tracks Compliance Evidence
The Clarion model converts the five conditions into decision gates classified as passed, at risk or blocked. Failure of one condition cannot be offset by compliance with the others. The demonstration dashboard shows two of five conditions passed, two at risk and one critical blocker. These figures are illustrative and do not describe a specific project.
The wider system includes 43 evidence controls, 71 structured inputs and 10 implementation work packages. Installation data cover the operator, plant configuration, technology, metering hierarchy, grid connection, single-line diagram and monitoring boundary. Hourly records include revenue meters, SCADA, power plant controllers, auxiliary consumption, curtailment, outages, PPA volumes, transmission nominations and settlement data.
The assurance layer includes monitoring plans, control registers, change logs, monthly evidence packs, data-gap treatment, verifier findings and buyer-specific reporting. Each material data point receives a source, owner, version and approval status. Manual changes require a documented reason, supporting evidence and an audit trail.
Solar and Wind Require Different Controls
Solar installations are monitored by reconciling inverter production with transformer and revenue-meter data while separating gross generation from auxiliary consumption, grid imports, clipping, curtailment and electrical losses. The system also records inverter availability, curtailment orders, meter changes and differences between plant-level and settlement data.
For wind projects, production from turbines is reconciled through collection systems, transformers and revenue meters. The controls cover turbine availability, outages, dispatch instructions, collection-system losses and the alignment of turbine, controller, SCADA and settlement timestamps. For both technologies, the eligible quantity must match the contracted electricity, physical production during the relevant hour and required cross-border nomination.
Battery Storage Requires Additional Attribution
Battery projects create additional attribution requirements because storage can charge from renewable generation, the grid or a combination of sources.
The dashboard maintains a separate state-of-charge and electricity attribution ledger covering opening balance, renewable charging, grid charging, losses, discharge and closing balance for each reporting interval. Eligible discharge cannot exceed eligible renewable electricity charged into the battery after losses and quantities already claimed before storage.
The system is designed to prevent the same megawatt-hour from being claimed both at generation and again at battery discharge. Projects combining generation and storage may require separate meters or reliable source flags to distinguish renewable, grid and mixed-source charging. Battery storage does not remove the requirements for a PPA, network-route evidence, hourly nomination or accredited verification.
Monthly Evidence Cycle Ends at D+10
The MRV process follows a monthly cycle ending 10 working days after the reporting cut-off.
At D+1, meter, SCADA, energy-management, scheduling, transmission and settlement data are frozen.
By D+3, generation, imports, exports, battery activity and settlement quantities are reconciled, while missing intervals, duplicate records, timestamp differences and unexplained losses are entered into an exception register.
At D+5, hourly production, contractual volumes and nominations are matched, with unsupported quantities excluded from the claim.
A four-eyes management review takes place by D+7, followed by the monthly evidence package at D+10.
The timetable is an operating target rather than a statutory CBAM deadline and is intended to identify missing evidence while records can still be recovered.
Verification Covers the Full Data Chain
European Commission guidance describes CBAM verification as a process covering pre-contract review, strategic and risk analysis, a verification plan, data-flow and control testing, site visits, data-gap treatment, findings, independent review and the final verification opinion. The verifier must also assess whether the installation’s monitoring plan complies with the applicable CBAM methodology.
The dashboard is intended to prepare producers for that process without replacing the independent accredited verifier. Its implementation covers governance, installation boundaries, data integration, contractual and network evidence, technology controls, a representative-month test and final verifier handover.
The representative-month exercise processes one complete reporting month through the system to determine whether each claimed megawatt-hour can be reproduced from original records. For EU importers and industrial buyers, the resulting evidence package provides documentation on whether installation-specific emissions can withstand verification. The required chain runs from the generating installation through the meter, contract, transmission route and hourly nomination to the authorised CBAM declarant. Renewable origin alone does not establish that chain.
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