For Serbia, the electricity question should be treated as a separate CBAM workstream, not as an ESG add-on. There are two electricity routes that matter. The first is electricity as a CBAM product, meaning Serbian power exported into the EU. The second, and commercially more important for Serbian manufacturers, is electricity consumed inside Serbian production facilities and then converted into indirect embedded emissions for CBAM-relevant goods. EU rules define indirect emissions as emissions from electricity consumed during production, and the definitive CBAM scope currently counts indirect emissions for cement, fertilisers and agglomerated iron ore, while iron/steel, aluminium and hydrogen are currently limited to direct emissions. Still, Serbian steel and aluminium exporters should build the electricity MRV layer now because EU buyers will increasingly request it as part of supplier risk management.
Serbia’s electricity baseline makes this issue material. Energy Community data for Serbia show 8,981 MW of installed electricity capacity, 34,706 GWh of generation, 35,725 GWh of gross consumption, 5,432 GWh traded on the day-ahead power exchange, 44 day-ahead market members, an average baseload day-ahead price of €102/MWh, 11 active electricity suppliers and 53.5% of supply at non-regulated prices. This means Serbian industrial buyers have a functioning market framework, but not yet a low-carbon default electricity system. The same dataset shows Serbia’s renewable share in electricity generation at 38.12% in the decarbonisation outlook, which leaves a large residual system exposure to fossil generation and makes the Serbian grid factor a key CBAM-risk variable.
The CBAM calculation logic is blunt: indirect emissions = electricity consumed during production × applicable electricity emission factor. For Serbian factories, the first question is therefore not whether electricity is marketed as “green”, but which electricity emission factor can be defended in the CBAM file. The EU’s current Q&A says the electricity emission factor may be either the grid emission factor supplying the electricity consumed or an actual electricity emission factor where CBAM rules allow it. That distinction is decisive for Serbia because a factory relying on ordinary Serbian grid electricity will carry the Serbian grid factor, while a factory using a properly evidenced renewable PPA or direct technical link may have a stronger case for using an actual factor.
The strongest Serbian electricity-procurement route for CBAM-ready production is on-site generation, especially rooftop or land-adjacent solar with properly separated metering. The next strongest route is a direct technical connectionbetween a generator and the consuming installation. After that comes a physical corporate PPA with a named Serbian renewable generator, supported by a licensed supplier, hourly or sub-hourly metering, settlement records and Guarantees of Origin as supporting documentation. The weakest route is a generic “green supply” or unbundled GO purchase without physical delivery evidence. Serbian Guarantees of Origin are useful because EMS defines them as electronic documents proving that 1 MWh of electricity attributes came from renewable sources, and EMS is the Serbian issuing body and registry operator under the renewable-energy framework, but this is a disclosure and anti-double-counting instrument, not a complete CBAM electricity factor by itself.
Serbia’s corporate PPA structure now needs special attention. The 2024 amendments to Serbia’s Energy Act removed the requirement for renewable producers to hold an electricity supply licence to enter into corporate PPAs with final customers, but the arrangement still requires an electricity supplier as intermediary between the producer-seller and the final customer. The supplier’s role is particularly important because it is expected to deliver missing quantities to the final customer. For CBAM-ready electricity, this means the Serbian PPA cannot be a simple price contract. It must become a three-party evidence structure: generator, licensed supplier and industrial buyer, with data rights flowing through the supplier to the factory and, ultimately, to the EU buyer or CBAM declarant.
The Serbian electricity purchase agreement should therefore contain a CBAM electricity annex. This annex should identify the generator, technology, installed capacity, location, grid-connection point, metering point, EIC codes where applicable, balancing party, supplier licence, delivery period, settlement interval, treatment of losses, GO ownership, GO cancellation process, replacement-power rule, curtailment rule, negative-price rule, data-retention period, audit rights and seller liability for failed evidence. The key commercial clause is the replacement-power rule: when a Serbian renewable PPA under-delivers, the missing MWh should not remain “green” by assumption. It should become Serbian grid electricity unless replaced by another verified low-carbon source with equivalent evidence.
The Serbian factory should run electricity MRV through a dedicated electricity ledger. This ledger should record every MWh entering the installation, every MWh generated on site, every MWh exported, every MWh consumed by production lines, and every MWh allocated to CBAM-relevant product output. The ledger should separate ordinary grid imports, PPA-backed electricity, on-site renewable generation, direct-line electricity, backup diesel/gas generation, electricity exports, auxiliary consumption and unverified electricity. Each category needs its own evidence status and emission factor. The electricity ledger must reconcile with supplier invoices, EMS/DSO metering, GO registry records, SCADA or EMS data, production volumes and ERP dispatch records.
A simple Serbian example shows the risk. A factory consuming 100,000 MWh per year cannot claim “100% green production” because it bought 60,000 MWh under a renewable PPA. Its CBAM electricity intensity must be calculated from the actual production-period balance: 60,000 MWh may be treated as PPA-backed only if the contract, metering, delivery and evidence support that claim; the remaining 40,000 MWh carries the Serbian grid factor unless separately verified. If the PPA produces only 50,000 MWh in a dry, low-wind or curtailed year, then the uncovered 10,000 MWhmust be treated as residual/grid power unless the contract supplies verified replacement electricity.
This is where Serbia’s GO system becomes useful but limited. EMS maintains the Serbian GO registry and also publishes a National Residual Mix Yearly Report, including the 2025 residual mix after correction with the European attribute mix. That residual mix is important for electricity disclosure because it helps prevent double counting: once renewable attributes are claimed through GOs, the untracked electricity mix must be adjusted. For CBAM-ready Serbian production, the GO file should include serial numbers, cancellation evidence, beneficiary identity, production period, generator identity and reconciliation to the factory’s consumption period. It should sit behind the PPA and metering file, not replace them.
Serbia’s power market is also changing in ways that matter for CBAM electricity contracts. SEEPEX introduced negative prices in May 2026, with the first day-ahead auction allowing negative prices on 5 May 2026 for delivery on 6 May 2026. The day-ahead floor moved from €0/MWh to –€500/MWh, while the intraday floor moved to –€9,999/MWh. SEEPEX later reported the first negative day-ahead price on 10 May 2026, when the delivery hour 14:00–15:00 cleared at –€0.01/MWh, followed by intraday negative-price trades on 24 May.
This matters because Serbian industrial PPAs now need European-style risk clauses. A CBAM-ready PPA should define who bears negative-price exposure, whether the generator may curtail during negative-price hours, whether the buyer still receives GOs for curtailed or non-generated volumes, whether storage can be used to shift renewable supply, and whether hourly matching is required for EU buyer acceptance. Negative prices are also evidence of a more granular Serbian power market, where timing, not only annual MWh volume, starts to matter. The Energy Community has described SEEPEX’s negative-price alignment as a step toward EU market coupling and stronger market signals for flexibility and storage.
For Serbian electricity exported directly to the EU, the compliance burden is different. Electricity itself is a CBAM good. The authorised CBAM declarant is normally the importer or indirect customs representative, and where explicit transmission capacity is allocated, supporting documents must prove that capacity was allocated and nominated. For imported electricity, default values are country-based CO₂ emission factors using IEA five-year averages. Actual emissions from a specific electricity-producing installation may be used only if cumulative conditions are met: a qualifying PPA, direct connection or proof of no physical congestion to the EU transmission system, generation below 550 gCO₂/kWh of fossil-origin CO₂, and firm nomination to allocated interconnection capacity with generation and capacity matched to the same period, no longer than one hour.
That makes Serbian renewable electricity exports to the EU commercially attractive but procedurally demanding. A Serbian solar, wind or hydro producer cannot assume that “renewable” status automatically creates zero-CBAM electricity at the EU border. The export chain must connect generation, PPA, capacity allocation, nomination, interconnector flows, timing and evidence. For power exported through traders, the data chain becomes harder because the authorised CBAM declarant may not be the Serbian generator. The trader or EU importer would need generator-level data, nomination records and proof that the electricity claimed as actual emissions corresponds to the same hourly period as the allocated cross-border capacity.
The wider strategic issue is market coupling. The Energy Community states that electricity market coupling is strongly intertwined with CBAM because EU rules allow a time-limited exemption for electricity imports from non-EU countries whose electricity markets are coupled with the EU market, where there is no technical solution to apply CBAM. From 1 January 2026, Energy Community contracting parties can remain or become coupled with the EU electricity market only if they receive such an exemption. Serbia has moved toward EU alignment, but until exemption and coupling conditions are fully resolved, Serbian electricity exports into the EU remain exposed to CBAM mechanics.
The practical Serbian solution is to treat electricity procurement as a bankable MRV asset. A Serbian factory should not buy “green electricity” as a marketing product. It should buy a verified electricity dataset: metered MWh, generation source, delivery period, emission factor, GO cancellation, supplier confirmation, settlement record, residual-mix treatment, audit trail and allocation method. The electricity seller should accept that it is also selling CBAM evidence. The EU buyer should require that the Serbian factory’s electricity file can be inserted directly into the factory’s product-level CBAM calculation and reviewed by an accredited verifier.
For Serbia, the competitive advantage will belong to factories that can say: this product was made using electricity whose source, volume, timing, emission factor and allocation to production have been verified. Anything less remains a green procurement claim, useful for ESG reporting but not yet strong enough for a serious CBAM-ready supply contract.
Elevated by CBAM.Clarion.Engineer