Certificates
Types of Energy Attribute Certificates
Compare Guarantees of Origin, RECs, I-REC(E), REGOs and TIGRs, and see where the EAC umbrella term fits.
Energy attribute certificates
Energy Attribute Certificate (EAC) is an umbrella term. GOs, RECs, I-REC(E), REGOs and TIGRs use different standards and registries. Their suitability depends on the market, reporting purpose and contractual requirements.
Tradable Instruments for Global Renewables
TIGRs are renewable energy certificates tracked through the TIGR Registry. Check registry coverage, the applicable market boundary and buyer reporting requirements before using them for a renewable electricity claim.
Resources
Guarantees of Origin (GOs)
Explore the European certificates used to document electricity generation attributes and support renewable electricity disclosure.
International REC (I-REC)
How I-REC for electricity (I-REC(E)) is issued, transferred and redeemed across participating markets.
UK REGOs
A guide to REGOs and their role in UK electricity disclosure and renewable procurement.
Renewable Energy Certificates (RECs)
What a REC represents, how registries track it, and where it fits in voluntary and compliance markets.