CDR Energy Secondary Data Holder API
The gateway contract AEMO implements as the CDR Secondary Data Holder for energy. Retailers are the primary data holders for the customer relationship, but the physical data — NMI standing data, meter and interval usage records, and the distributed energy resources register — lives with AEMO, so the standards define a separate six-operation server-to-server API that retailers call on the consumer's behalf. This is the piece of machinery that has no banking equivalent, and it is why energy needed a shared-responsibility model rather than a straight copy of the banking contract.