Corporate renewable electricity procurement increasingly relies on physical power purchase agreements, virtual PPAs and Guarantees of Origin. Although all three instruments can support decarbonisation strategies, they confer different contractual and economic rights and do not provide equivalent evidence under the EU Carbon Border Adjustment Mechanism (CBAM) rules for imported electricity.
Physical PPAs Require Evidence Beyond Contractual Delivery
A physical power purchase agreement (PPA) establishes contractual arrangements for electricity delivery, but the contract alone does not qualify a megawatt-hour for actual-emissions treatment under CBAM. The applicable criteria also require an eligible generating installation, relevant network evidence, firm nominations linked to production within the same hour and verification.
An agreement referencing a wind farm may therefore be insufficient if its settlement is based on a regional trading hub and the required qualifying physical arrangements are absent.
Virtual PPAs Provide Financial Exposure Rather Than Physical Delivery
A virtual PPA generally uses financial settlements between a renewable electricity generator and a corporate buyer. Such agreements can hedge price exposure or support investment in a new renewable energy project while allowing the buyer to purchase physical electricity from the market.
However, a virtual PPA does not constitute the physical-delivery agreement required for actual-emissions treatment of a specific electricity import into the EU. Matching annual contract volumes in megawatt-hours against an import portfolio does not transform a financial arrangement into evidence of qualifying physical delivery.
Guarantees of Origin Establish Renewable Attributes
A Guarantee of Origin (GoO) certifies an attribute of renewable electricity generation and can support electricity disclosure and renewable-energy claims, subject to applicable registry and disclosure requirements.
A certificate does not, by itself, establish which electricity was nominated for delivery across an EU border. Documentation associated with a GoO retired for a European corporate buyer may complement a wider evidence file, but it does not replace the physical criteria applicable to electricity CBAM. Certificates must also be managed to prevent the same attribute from being sold or claimed more than once.
Serbian and Montenegrin Generators Face Attribute-Ownership Questions
The distinctions have commercial implications for independent power producers (IPPs) in Serbia and Montenegro. A renewable developer may sell physical electricity under an offtake agreement to one trading company while selling Guarantees of Origin to another buyer.
Such arrangements may be permissible under the applicable schemes and contractual terms, but they affect the overall revenue structure and raise questions about ownership of renewable attributes. Contracts marketing electricity as low-carbon or CBAM-qualified should specify whether the buyer receives renewable certificates, physical delivery rights, actual-emissions evidence or a combination of these products.
Corporate electricity purchasers also need to distinguish renewable procurement claims from the emissions legally attributed to electricity imports. Buying renewable certificates for European offices does not necessarily change the embedded emissions attributed under CBAM to electricity imported from a non-EU electricity system.
Similarly, a steel or aluminium purchaser with a renewable PPA cannot automatically claim lower CBAM liabilities on imported products. The applicable sector-specific rules for direct and indirect embedded emissions must be assessed independently of the electricity procurement arrangement.
Contractual Separation Defines Carbon-Evidence Rights
Energy contracts can accommodate multiple commercial products by specifying electricity volumes, generation sources, delivery arrangements, nominations and rights to use carbon-related evidence.
A separate certificate schedule can define the applicable registry, certificate vintage, transfer, retirement, cancellation and controls against duplicate claims. Financial agreements used to hedge electricity prices should remain distinct from documentation intended to demonstrate physical delivery.
Bundled commercial offerings should therefore distinguish between the separate rights associated with electricity delivery, renewable attributes and emissions evidence rather than treating them as a single, undefined green megawatt-hour.
Proposed EU–Energy Community Recognition Framework
The distinction between renewable certificates and CBAM qualification could become more significant if the EU and the Energy Community establish broader mutual recognition of renewable certificates.
The September 2026 proposal COM(2026) 464 envisages a new recognition framework. As described in the source, the proposal had not yet become an operative replacement for the existing CBAM qualification requirements.
For renewable developers and electricity traders, the commercial arrangements consequently need to preserve the separate, auditable rights associated with physical electricity, financial settlements, renewable attributes and emissions evidence.
