Comment on page
Energy Attribute Tokens (EATs)
Turning Energy Attribute Certificates (EACs) into Energy Attribute Tokens (EATs)
We use the term "Energy Attribute Certificate" (EAC) to refer to the assets when tracked in a legacy registry. Once tokenized on-chain, we refer to it as an "Energy Attribute Token" (EAT).
EATs are ERC-1155 compliant Non-Fungible Tokens (NFT). This format allows the token to carry metadata of the most critical properties (like its tech type and vintage), and references to other EAC-associated metadata available on our API.
The following metadata is stored within the token to enable us to bridge certificates on and off-chain, uniquely track each certificate, perform automated inclusion criteria for liquidity pools, and ensure certificates and properly and permanently retired:
- Generator: Which generator (commonly called a "power plant," "wind farm," solar farm," etc) which generated the electricity and EAC?
- Vintage: When the energy for an EAC was generated? - designated by a month and year.
- Registry: Which registry was the certificate originally bridged from?
- Tech type: Which energy technology was used to generate the power? e.g. Wind, Solar, Hydro, etc.
- Certificate Type: Which global standard is this certificate? e.g. North American REC, European GO, etc
- Certificate Endorsement: Was this certificate endorsed by an external third party like the Center for Resource Solutions (CRS) to guarantee a high-quality project?
There is a considerable amount of additional metadata about the original certificate, that is fairly heterogeneous across registries and only lightly structured at best, and thus not a good fit to be stored directly on-chain. Instead, the additional metadata will be available from our publicly accessible API, or on a distributed file store.
The easiest way to get an EAT is to buy a Jasmine Liquidity Token (JLT) and use it to withdraw an EAT from a reference pool.