Decarbonising primary aluminium production requires commercial teams to separate emissions linked to electricity supply from direct process emissions created by smelting technology. Renewable electricity can lower the broader carbon footprint of production, but it does not remove the need to monitor and reduce emissions tied to anode consumption and perfluorocarbon (PFC) releases. This distinction affects how emissions are tracked for compliance purposes.
Under current carbon border adjustment mechanism rules, CBAM calculations for iron-and-steel and aluminium goods listed in Annex II take account of direct emissions. Renewable electricity procurement can support operational, customer, financing and decarbonisation benefits without automatically reducing certificate liability through purchased-electricity emissions. The European Commission’s approach therefore keeps direct emissions central for the listed goods covered by the existing calculation.
European Commission guidance dates for CBAM implementation
The European Commission published definitive-period sector guidance on 14 August 2026, including dedicated material for electricity, iron and steel, and aluminium. It also refreshed its general CBAM questions and answers on 15 October 2026. The guidance is intended to explain implementation but does not replace the binding regulation and implementing acts.
For primary aluminium producers, the separation between electricity-related emissions and process emissions is described as particularly important. Anode-related CO2 emissions and PFC emissions require monitoring and abatement measures. Under current CBAM rules for listed aluminium goods, these direct process emissions remain central to the certificate calculation.
Renewable electricity attributes and evidence requirements
Contracts that cover renewable electricity attributes should prevent the same environmental claim from being sold more than once, including when a renewable project supplies multiple industrial customers. Electricity supply records and Guarantees of Origin (GoOs) can be reconciled to support appropriate claims. However, owning a renewable attribute alone does not establish that the electricity qualifies for a specific CBAM treatment.
The power contract is described as one element within a broader transition programme covering cell efficiency, anode management, process control and precursor data. Electricity traders can support the energy-procurement component without implying that renewable supply resolves the product’s entire embedded-emissions position. This separation is tied to how claims are evidenced under current rules.
Financing models and contract terms for low-carbon aluminium
Capital providers are expected to incorporate both decarbonisation capital expenditure and power purchase agreement (PPA) strategy into the same financial model while keeping revenue effects and compliance effects distinct. The source notes that a competitively priced renewable contract may improve cash generation and help finance process upgrades even before purchased electricity gains a broader role in the relevant CBAM calculation. This reflects timing differences between financing structures and regulatory treatment.
Customer contracts for low-carbon aluminium should specify whether commitments relate to product carbon footprint, renewable electricity sourcing, a maximum emissions threshold or a disclosure requirement. Each commitment type requires its own evidence and may support a different commercial premium. Aluminium buyers are therefore expected to separate power-cost competitiveness from process-carbon compliance when evaluating transition measures.
COM(2025) 989 proposes changes to electricity treatment and downstream CBAM scope
The legislative proposal COM(2025) 989 would revise electricity treatment, including the methodology for electricity default values and conditions for using actual values. It would broaden physical power purchase agreements to include intermediaries and change elements of congestion and nomination framework mechanics. The Council adopted its negotiating position on 12 June 2026, followed by the European Parliament on 15 September 2026.
The proposal remains under interinstitutional negotiation and is not enacted law. The same legislative file also proposes extending CBAM downstream coverage from 2028 to selected steel- and aluminium-intensive goods, with both institutions supporting expansion but proposing different product lists subject to negotiation. Until final legislation is adopted, the existing scope remains the operating baseline.
For primary aluminium, renewable electricity is described as an important decarbonisation lever but not a substitute for reducing direct process emissions. Investors are therefore expected to use a disaggregated carbon model reflecting each emissions source and the specific regulatory treatment applicable to the product. This requirement links investment planning to how emissions sources are accounted for under CBAM.