Practical Guide: Eight Steps to Using Energy Attribute Certificates in Your Company

Energy Attribute Certificates: Eight Practical Steps for Companies

Energy Attribute Certificates are a widely used instrument for tracking renewable electricity attributes and supporting corporate renewable energy claims. This guide outlines eight steps companies can follow to procure, track, retire, and report EACs in line with common corporate reporting frameworks and registry practices.

How to use Energy Attribute Certificates within a company

The following eight steps describe a practical approach that aligns certificate procurement with operational needs, stakeholder expectations, and recognized standards such as the GHG Protocol for scope 2 guidance and registry rules administered by issuing bodies.

Step 1: Clarify objectives and materiality

Determine why EACs are needed: to demonstrate renewable consumption, meet internal sustainability goals, support investor or customer reporting, or comply with a procurement policy. Assess the materiality of the claim to decide the volume and vintage of certificates required.

Step 2: Identify applicable certificate types and registries

Different markets use different instruments (for example, Guarantees of Origin, Renewable Energy Certificates, or I-REC). Identify the registry and issuing body relevant to the production region and technology. National regulators, regional issuing bodies, and international standards such as the I-REC Standard or the Association of Issuing Bodies provide guidance on local practices.

Step 3: Check regulatory and reporting requirements

Confirm whether certificates can be used for public claims in the company’s jurisdictions and how they should be treated for corporate reporting (e.g., scope 2 market-based reporting). Consult guidance from recognized frameworks such as the GHG Protocol and national regulators to align accounting and disclosure approaches.

Step 4: Procure or contract certificates

Choose procurement routes: direct purchase from generators, brokers, supplier-backed certificates, or bundled with power purchase agreements. Ensure contract terms specify vintage, quantity, transferability, and the right to retire or cancel certificates to avoid double counting.

Step 5: Implement tracking and registry processes

Record EAC holdings in a secure tracking system or the issuing registry. Use unique serial numbers and maintain transaction records for audit trails. Ensure systems capture metadata such as generation source, location, and production date to support transparent disclosures.

Step 6: Retire certificates when making claims

Retirement (also called cancellation in some registries) removes the attribute from circulation and prevents further claims. Retire certificates in the issuing registry in the same timeframe as the reported consumption or committed period, and retain evidence of retirement for audits and stakeholder inquiries.

Step 7: Verify and document

Establish internal controls and, where appropriate, seek third-party assurance to verify procurement, retirement, and reporting. Maintain documentation that supports the chain of custody from generation to retirement and aligns with corporate disclosures and any regulatory filings.

Step 8: Communicate transparently

Communicate outcomes clearly to stakeholders. Disclose the type of certificates used, volumes, vintages, retirement dates, and whether attributes were bundled with physical energy or sourced separately. Transparency reduces reputational risk and supports consistent market practice.

Compliance, accounting, and common considerations

Regulatory context and standards

National regulators, regional issuing bodies, and international organizations set the rules that affect eligibility and recognition of EACs. For corporate greenhouse gas reporting, the GHG Protocol provides market-based scope 2 guidance that explains how certified attributes may be applied. Consult the appropriate regulatory authority in each operating jurisdiction for mandatory requirements.

Quality factors to evaluate

Consider additionality, location (grid vs. same-zone matching), vintage, and whether attributes are sold separately from physical energy. These quality factors influence stakeholder perception and the validity of claims in sustainability reporting.

Recordkeeping and audits

Maintain records of serial numbers, transaction receipts, retirement confirmations, and contracts. Many issuing registries provide download-able retirement certificates that can be archived as audit evidence.

Further resources

For overviews of renewable energy tracking and international policy context, refer to materials published by international energy agencies and recognized issuing bodies. For a broad perspective on energy transitions and policy, see the International Energy Agency: https://www.iea.org/

Frequently asked questions

What are Energy Attribute Certificates and how do they work?

Energy Attribute Certificates represent the environmental attributes associated with a unit of electricity generation. Each certificate is issued by a registry, carries a unique identifier, and can be transferred, traded, and retired to support claims about renewable electricity consumption.

Can EACs be used for corporate scope 2 reporting?

Yes. Market-based scope 2 reporting typically allows the use of certified attributes such as EACs, provided the accounting follows the guidance of recognized frameworks and the company documents procurement, delivery period, and retirement.

How should a company choose between different certificate types?

Choice depends on geography, registry availability, regulatory recognition, and corporate preferences for quality attributes like additionality and vintage. Evaluate issuing body rules, national regulations, and whether the certificate supports the intended communication.

How can a company avoid double counting with Energy Attribute Certificates?

Avoidance requires retirement of certificates in the issuing registry and clear contractual terms that transfer exclusive rights to the buyer. Registries and issuing bodies prevent re-use of retired serial numbers, which supports unique claims and prevents double counting.