Horizon Power
State Government-owned power company that provides power supplies to Western Australia

Horizon Power is a power company that provides power supplies to Western Australia owned by the Government of Western Australia.
Horizon Power was established on 1 April 2006 after Western Power Corporation was split up. It operates in the Pilbara, Kimberley, Gascoyne/Mid-West and Southern Goldfields-Esperance regions of Western Australia. Horizon Power's head office is in Karratha with regional offices in Broome, Kununurra, Carnarvon, Esperance and Port Hedland, and administrative support delivered from Perth.
Horizon Power is responsible for delivering electricity to 47,000 connections, supplying more than 100,000 residents and more than 10,000 businesses in regional towns and remote communities. It manages 38 systems: the North West Interconnected System in the Pilbara and the connected network between Kununurra, Wyndham and Lake Argyle, and 34 stand-alone systems across regional Western Australia.
Its service area is approximately 2.3 million square kilometres, which means Horizon Power services the biggest area with the fewest customers in the world. For every 53.5 square kilometres of terrain, Horizon Power has one customer.
Begin with the source’s own compact description: “Horizon Power” is state Government-owned power company that provides power supplies to Western Australia. The dossier treats that line as a proposition to test through Horizon, Power and State, not as a finished interpretation.
Why this record matters
The phrase “state Government-owned power company that provides power supplies to Western Australia” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
The record creator and administrative purpose are central evidence, because official documentation reflects both action and institutional priorities. The source revision retrieved here is dated Sep 1, 2026. The linked authority identifier is Q5903476. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2006.
Later summaries often reconcile disputed chronology or motive more neatly than the contemporary record permits. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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Three-step research path
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This entry incorporates text from “Horizon Power” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.