There are many Energy Attribute registries around the world - we're working towards supporting all of them
Energy Attribute Certificates (EACs) must start on a supported registry to be bridged on-chain. We're adding support for new registries all the time! If you'd like to bridge from a registry that we do not yet support, please come to our Discord and tell us about it. We are currently focusing on building out integrations with registrations in the North American market, where EACs are often standardized under the term "Renewable Energy Certificate" (REC) or sometimes also "Renewable Energy Credit".