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Updated March 8, 2022

More documents can be found in the Green-e Energy Participant Portal (password required).

1. Overview Materials

2. Standards and Governing Documents

North America



  • Green-e™ Renewable Energy Standard for Singapore provides Green-e™ Energy's requirements for certified renewable electricity sales and consumption in Singapore.
    • Note: TIGRS Registry. Approved for use toward Green-e™ Energy certified transactions in Singapore. Public reports of retirement volumes are not currently required; this may be reevaluated as the Singapore market develops.
  • Green-e™ Code of Conduct for Singapore is one of the main governing documents of  Green-e™ Energy in Singapore, and outlines requirements for consumer protection and environmental standards. Updated March 1, 2020
  • Terms of Reference (Singapore) lays out the key issues that the Standard for Singapore addresses, including market need, sustainability, comparison to and compatibility with other existing relevant standards, implementation risk and how to address such risk.

Taiwan R.O.C.

Green-e® Direct Governing Documents (Supplemental)

In addition to the Standards and Governing Documents above, the following supplemental documents are also required for participants in Green-e® Direct.

California Enhanced Community Renewables (ECR) Documents

4. Guidance Documents

  • Tracking Attestations. A review of the Tracking Attestation process, beginning with whether renewable energy or renewable energy certificates (RECs) generated from a specific facility meet certain criteria in the Green-e® Renewable Energy Standard for Canada and the United States, and whether the facility has completed the process to be listed on the “Approved Tracking Attestations” page by CRS.
  • Green-e® Residual Mix Emissions Rate Tables. CRS publishes annual "Residual Mix" emissions rates, which are CO2 emissions rates that should be applied to all electricity use that is not associated with a Green-e® Energy certified product or for which a more specific set of emissions data is not available. These rates are compatible with the World Resources Institute's (WRI's) guidance.
  • Green-e Energy Summary of WRI Scope 2 Guidance summarizes the major takeaways from WRI's Scope 2 accounting guidelines as well as required and optional reporting under this guidance.
  • Standardized PPA Language Providing for Green-e® Certification. Buyers who use power purchase agreements (PPAs) as a procurement method may want to plan for future Green-e® certification of the generation and environmental attributes, including renewable energy certificates (RECs), within the text of the PPA contract. CRS recommends including this PPA contract language to lay the groundwork for Green-e® certification to come.

5. Attestation Forms for Facilities Within a Tracking System

These forms are used to substantiate the chain of custody of all renewable MWh (renewable electricity or standalone RECs) used in Green-e® Energy certified sales. Renewable energy generators must be registered in an approved tracking system (see "Approved Tracking Systems" below).

6. Attestation Forms for Facilities Not in a Tracking System

Attestations for sales of RECs and renewable electricity from facilities not registered in an Electronic Tracking System. These do not grant any specific Green-e® Energy eligibility status; the ultimate determination of eligibility lies with Green-e® Energy staff during the annual verification audit. Facilities not in a Tracking System may only use these forms.