generated: '2026-09-02'
method: searched
source: https://www.ameren.com/partners/account-and-data/share-my-usage
provider: Ameren
providerId: ameren
description: >-
  Lifecycle posture for Ameren's third-party data surface. Ameren publishes no API
  versioning policy, no deprecation policy, no Sunset/Deprecation header commitment, no
  SLA and no API status page. What it does publish is a program lifecycle — registration,
  authorization term, and revocation — and that is recorded here.
versioning_policy:
  published: false
  scheme: unknown
  detail: >-
    Searched the Share My Usage program page and the third-party registration guide PDF.
    Neither names an ESPI/NAESB REQ.21 version, an API version, or a version negotiation
    mechanism.
deprecation_policy:
  published: false
  sunset_header: false
  deprecation_header: false
  rfc8594: false
  detail: >-
    No deprecation or sunset policy is published. No Deprecation pointer is emitted.
sla:
  published: false
  detail: No availability or latency commitment is published for the data interface.
status_page:
  published: false
  url: null
  detail: >-
    Ameren operates an OUTAGE CENTER (https://www.ameren.com/outages) for electric service
    interruptions. That is a utility service map for customers, NOT an API/platform status
    page, and it is deliberately not wired as a StatusPage pointer — doing so would credit
    Ameren with an operational transparency surface for its API that it does not have.
  probed:
    - url: https://www.ameren.com/outages
      status: 200
      classification: electric service outage map, not API status
changelog:
  published: false
  detail: >-
    No dated API or developer changelog found on ameren.com, gp.ameren.com or
    developer.ameren.com. No ChangeLog pointer is emitted.
program_lifecycle:
  - stage: Third-party registration
    detail: >-
      Two-phase application: Ameren Illinois reviews, then data custodian Aclara collects
      technical information. Ameren states the whole process takes 2 to 4 weeks.
    url: https://gp.ameren.com/third-party-registration/instructions
  - stage: Registration term
    detail: Ameren states registration does not expire once approved; it remains active unless discontinued.
  - stage: Customer authorization term
    detail: >-
      Up to 24 months of historical usage data plus 24 months of forward data, unless the
      customer revokes authorization before the 24-month expiration.
  - stage: Revocation
    detail: Customer-initiated at any time within the term. See conventions/ameren-conventions.yml reversibility.
  - stage: Territory boundary
    detail: >-
      Illinois only. Ameren states Share My Usage is not currently available for Missouri
      customers — a live scope limit an integrator must plan around.
deprecated_operations: []
deprecated_operations_note: No OpenAPI exists, so no deprecated operations can be derived.
evidence:
  - url: https://www.ameren.com/partners/account-and-data/share-my-usage
    status: 200
  - url: https://www.ameren.com/outages
    status: 200
  - url: https://developer.ameren.com/
    status: 200
    note: 302 to /s/ — Salesforce Experience Cloud community, no changelog readable anonymously
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com