SWIS Observatory

Operating and transition evidence for the South West Interconnected System.

Current version: operations-swis-2026-09-18
Lifecycle: reference
Freshness basis: Editorial review
Freshness date: 2026-09-20
Editions: 16
Confidence: High
Serving: Live ledger

Open decision surface JSON export

Compare releases

What changed, and what did not.

Select any two retained editions. Status labels come from the publisher or the Solar Analytica release boundary; rows are never silently rewritten into the latest state.

Earlier editionLater edition

Edition comparison

Field	operations-swis-2026-09-17	operations-swis-2026-09-18	Read
Release status	snapshot	snapshot	Unchanged
Published	2026-09-19	2026-09-20	Changed
Rows	6	6	Unchanged
Recorded changes	Not recorded	Not recorded	Unchanged
Observation Date	2026-09-17	2026-09-18	Changed

SWIS operating record provider release.

Trust declaration

Fitness, limits and the check performed.

Publication contract pass

Suitable for the named scope when used with the published vintage, confidence and known limit. It is not a substitute for project-specific diligence.

Institutional environment: documented; AEMO WEM and Western Australian Government is named as source; Solar Analytica owns the published transformation and limits.
Relevance: documented; South West Interconnected System, Western Australia
Accuracy and reliability: documented; The shared release heartbeat is pending connection to the SWIS pipeline.
Timeliness: documented; Versioned operating-record release. Next expected check: 2026-09-21.
Accessibility: documented; Public landing page at /swis; JSON trust metadata and catalogue metadata are open.
Interpretability

Receipt lineage

Which edition, and what sits upstream.

Receipt resolution and dependency health are separate. A complete lineage path cannot make a recovering source decision-ready.

matched

Resolution: direct exact version.

swis-observatory / operations-swis-2026-09-18

Editorial review: lastMaterialReleaseAt satisfies the editorial_review date basis.

Freshness records which declared date satisfies the product's registered basis. Dependency causes describe upstream operational state. Neither establishes source correctness or a changed decision outcome.

No upstream product dependency is registered. This product is treated as a source or standalone evidence surface.

Provenance

Current does not mean timeless.

The shared release heartbeat is pending connection to the SWIS pipeline.

Coverage: South West Interconnected System, Western Australia. Refresh contract: Versioned operating-record release.

AEMO WEM and Western Australian Government Latest edition evidence Methodology