The European Commission has set the third-quarter 2026 CBAM certificate price at €82.32 per tonne of CO₂, up from €75.28 in the second quarter. Using Serbia’s default electricity factor of 1.041 tCO₂/MWh, the indicative CBAM burden for imports under the default value is about €85.70/MWh in Q3. The calculation implies an increase from roughly €78.37/MWh in Q2.
Default carbon cost enters cross-border pricing
For Serbian electricity traders, CBAM is increasingly treated as part of cross-border price calculations rather than a separate compliance item. An export deal that looks profitable when comparing Serbian and EU wholesale prices can become uneconomic once the default carbon cost is added. Under the new quarterly certificate price, reliance on the national default starts from an indicative carbon disadvantage of around €85.70/MWh, which is described as large relative to normal wholesale-market spreads.
The increase does not indicate that all Serbian electricity physically carries the default emissions level. Serbia’s generation mix includes hydro, wind and solar alongside lignite-fired production. The issue highlighted for renewable generators is methodological: unless conditions for actual emissions are met, the CBAM system applies the prescribed default value instead of recognising plant-specific emissions for a wind or solar asset.
Actual-emissions claims depend on a qualifying evidence chain
A Serbian wind farm cannot replace the national default by demonstrating renewable output alone. The framework requires a stronger evidence chain for electricity claimed under actual emissions. Electricity must be supported by a qualifying power purchase agreement between the authorised CBAM declarant and the third-country producer, and the generating installation must meet relevant emissions threshold and physical network conditions.
The electricity also needs firm nomination to allocated cross-border capacity, with nomination and production matched within no more than one hour. Compliance must be certified by an accredited verifier, supported by interim evidence during the reporting period. The operational chain described links a named installation to meter and SCADA data, hourly generation, PPA allocation, accepted nomination, cross-border evidence, the EU declarant and then the accredited verifier.
Verification requirements affect contracts and trading records
The commercial value for renewable generators is tied not only to producing low-carbon electricity but also to preserving evidence that the specific electricity claimed by an EU importer came through a qualifying transaction. If a wind or solar producer does not preserve required hourly meter records, nominations or contractual allocation, it could lose access to actual emissions and leave its EU buyer exposed to the higher Serbian default. The higher Q3 certificate price increases the economic consequences of such failures.
Meter hierarchy, SCADA-to-settlement reconciliation, calibration records and hourly production data are identified as revenue-supporting information rather than only technical documentation. Trading records are also relevant: a producer may export renewable electricity successfully from a market perspective but still fail to show that nominated cross-border quantities correspond with output from the named installation during the required hourly interval. Reconstructing that evidence months later may be difficult for projects aiming to use actual emissions for 2026 imports.
CBAM-oriented PPAs and guarantees of origin are distinct
The carbon-price increase also supports changes to how renewable PPAs are drafted. A conventional PPA typically covers price, volume, profile, balancing, settlement and guarantees of origin, while a CBAM-oriented agreement needs additional controls such as plant identification, allocation of qualifying volumes, EU declarant identification and access to meter and nomination information. It also calls for verifier cooperation, data-retention requirements and provisions preventing double counting.
The agreement should define what happens if electricity fails the actual-emissions test, because if contract pricing assumes low or near-zero plant-specific emissions but verification fails, the importer must use the Serbian default and carbon exposure could be material. The parties therefore need to determine contractually who carries fallback risk.
The rising CBAM price reinforces separation between guarantees of origin and actual-emissions verification. A Serbian generator may issue renewable certificates associated with its production that can have commercial value if EU recognition of Energy Community guarantees of origin expands, but a guarantee of origin does not replace physical electricity evidence required under CBAM. The described outcome is that projects may sell two distinct environmental products: a renewable attribute and a CBAM-verifiable electricity transaction.
Carbon volatility links EU ETS prices to cross-border electricity economics
The Commission calculates CBAM certificate prices from EU ETS auction prices; for 2026 they are set quarterly and from 2027 on a weekly basis. That schedule is described as embedding carbon-price volatility into cross-border electricity economics. For exports relying on default emissions, higher EU ETS prices directly increase effective costs of reaching the EU market.
For wind and solar plants able to satisfy actual-emissions methodology conditions, rising carbon prices can increase relative value of verified low-emission electricity compared with default-based treatment. The Q3 increase is presented as dividing Serbian electricity exports according to evidence quality behind them: at €82.32/tCO₂ this translates into an indicative default burden of around €85.70/MWh.
The Commission confirms Q3’s €82.32/tCO₂ level versus €75.28 in Q2, with Serbia’s applicable default factor at 1.041 tCO₂/MWh. The Q2 comparison is supported by Energy Community CBAM monitoring, while current EU regulation retains requirements tied to physical PPA arrangements, network conditions, nomination timing, hourly matching and accredited-verifier certification for actual electricity emissions.