CO2I Carbon Signal — Weekly Carbon Brief

Reporting period: 30 October–6 November 2026

This week’s clearest Carbon Management development is a new EU implementing regulation governing compensation where ETS2 carbon costs arise from double counting or unintended coverage. It sets common principles but does not itself establish that a particular consumer is eligible for payment: Member States retain important choices over compensation measures and their administration. A related electricity-market signal highlights persistent congestion and cross-border capacity constraints that may affect the cost and feasibility of electrification and renewable integration. Two European Parliament files merit monitoring, but the supplied material records consideration or scheduled votes rather than outcomes.

Lead Analysis

ETS2 rules address carbon costs outside the intended scope

Commission Implementing Regulation (EU) 2026/2467, dated 5 November and published in the Official Journal on 6 November, establishes rules for financial compensation of final fuel consumers when ETS2 allowances have been surrendered because of double counting or unintended coverage.

Under the regulation, double counting concerns fuels used for activities already covered by Annex I of the ETS Directive. Unintended coverage concerns fuels used for activities covered by neither Annex I nor Annex III and not included through a Member State’s unilateral extension. Compensation above zero is limited to final consumers that incurred carbon costs in such circumstances. It must be based on a reliable estimate of the charged CO₂ emissions and objective, transparent and non-discriminatory criteria. [1 · eur-lex.europa.eu]

The carbon price used in calculating compensation is the average ETS2 auction price during the eligible period. Member States may adapt the estimation method and eligible period to the activity and consumer type, but the period cannot exceed one calendar year. When a final consumer is eligible, compensation must be provided within the calendar year following the eligible period.

The regulation does not guarantee compensation to every consumer affected by an out-of-scope fuel use. Member States may provide compensation at zero, apply thresholds and define administrative arrangements. Consumers may also need to request compensation and demonstrate the relevant carbon costs. The practical effect will therefore depend on each Member State’s measure, including its competent authority, eligibility thresholds, application deadline and emissions-calculation method.

Member States must report annually to the Commission on their compensation measures by 30 June of the year following the year in which compensation was provided. The required information includes the activity and competent authority, thresholds, eligible periods, application deadlines, calculation method, allowance price used, number of consumers compensated, emissions represented and total compensation paid.

The regulation also establishes how allowances surrendered for emissions outside ETS2 coverage are to be quantified. Where a Member State has not extended ETS2 to additional activities, the calculation generally compares verified ETS2 emissions with emissions for covered activities derived from national greenhouse-gas inventories. From 2030, Member States must submit the specified emissions data by 30 June each year, beginning with data for 2028. Alternative calculations and reporting exemptions apply in defined cases involving unilateral scope extensions.

The regulation enters into force on the twentieth day following its Official Journal publication and is directly applicable in all Member States. A useful preparation step for regulated entities and potentially affected final consumers would be to map fuel flows where the supplier lacks a direct connection to the end user, identify possible overlap with Annex I activities or other out-of-scope uses, and retain evidence of carbon costs and associated emissions. This is suggested preparation, not confirmation of eligibility or a commitment by any authority to compensate a claim.

Selected Carbon Management Signals

Electricity-market constraints remain a decarbonisation dependency

ACER’s monitoring summary, published on 4 November, reports that cross-border electricity trade generates about €32 billion in annual economic surplus in the day-ahead market and that further integration across markets could deliver at least another €4 billion per year. Almost 90% of day-ahead electricity trading now uses 15-minute products, introduced on 1 October 2025, while power-purchase agreements increasingly combine renewable generation with storage. [2 · www.acer.europa.eu]

The same monitoring identifies constraints relevant to electricity-dependent industrial decarbonisation. Forward-market liquidity remains concentrated in a limited number of bidding zones and declines rapidly beyond one year ahead. Price differences between bidding zones are widening, and the requirement to make at least 70% of transmission capacity available for cross-border trade is not yet fully implemented across the EU. Intraday and balancing markets are particularly affected by restricted cross-zonal access.

Grid-congestion management cost €5.4 billion in 2025, up from €4.3 billion in 2024, with a growing share associated with voltage control following the Iberian blackout. These figures do not constitute a change in carbon policy. They do, however, indicate dependencies that can influence the economics and operational resilience of electrification, renewable integration and power-intensive decarbonisation projects. Project teams could test their assumptions against bidding-zone exposure, available grid capacity, balancing needs and the depth of longer-term contracting rather than treating an EU-wide market indicator as a local delivery guarantee.

Watchlist

EU ETS and maritime MRV amendments remain under consideration

The European Parliament’s ENVI committee page records that members were due to consider jointly, on 4 November, tabled amendments to the revision of the EU ETS Directive and to the linked proposal to simplify and streamline maritime CO₂ monitoring, reporting and verification. The supplied material does not contain the amendments or identify a resulting committee position. The appropriate next check is therefore the amendment text and subsequent committee record, without assuming that consideration produced adoption or a negotiating mandate. [3 · www.europarl.europa.eu]

Funding programmes and low-carbon lead markets on ITRE’s agenda

The supplied ITRE committee page identifies votes scheduled for 10 November on draft reports concerning the Connecting Europe Facility for 2028–2034, Horizon Europe under the 2028–2034 multiannual financial framework and the European Competitiveness Fund. These are parliamentary decision points on draft reports, not confirmed programme terms, funding awards or applicant entitlements.

The page also records a presentation of a committee-requested study on using “Made in Europe” to develop lead markets for low-carbon products. Its description says the study assesses potential economic and legal implications and the design and implementation of such an approach, but the supplied material does not provide the study’s findings. Readers assessing industrial-decarbonisation funding or demand-side policy should monitor the vote outcomes and underlying documents before changing project or investment assumptions. [4 · www.europarl.europa.eu]

Source notes

The supplied ENVI committee page confirms consideration of tabled EU ETS and maritime MRV amendments on 4 November but does not provide the amendment text or a resulting committee position; further details may be available on the linked original website. [3 · www.europarl.europa.eu]

The supplied ITRE committee page provides agenda-level descriptions of the 10 November votes and a short description of the low-carbon lead-market study, but not the draft reports, study findings or vote outcomes; further details may be available on the linked original website. [4 · www.europarl.europa.eu]