Submit a NERC E-TAG energy transaction tag via the NAESB WEQ-012 XML API to schedule a wholesale power transfer

Verified steps

1. Register as an e-Tag agent with the relevant e-Tag authority service (typically your ISOs/RTOs' designated authority or a commercial e-Tag platform such as OATI webSmartTag); obtain digital certificates required for signed XML message submission.
2. Construct the e-Tag XML payload per NAESB WEQ-012 (Electronic Tagging Functional Specification); the tag must include: tagID (unique across the submitting entity), transactionType ('PURCHASE' or 'SALE'), contractNumber, marketSegments (energy source and sink with MW quantities), and physicalSegments (transmission path with TSR numbers from OASIS).
3. Submit the e-Tag via POST to the authority service's endpoint with the XML body and appropriate authentication headers; the authority service validates the tag structure and forwards approval requests to each transmission provider listed in the physical segments.
4. Monitor approval status by polling the authority service's tag status endpoint with the tagID; each physical segment provider must approve (or reject/conditionally approve) the tag — a tag is only dispatchable when all segments reach 'APPROVED' status.
5. For tags requiring curtailment adjustments during the operating hour, submit a tag amendment (tagType='AMENDMENT') with the modified MW quantity and the original tagID as the reference; amendments require re-approval from affected segment providers.
6. Submit a tag termination request before the end of the trading day for unused capacity; unreturned approved tags may result in transmission service charges even if the energy was not dispatched.