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It describes planned construction and operation of a 500 MW / 1,000 MWh grid-forming battery with advanced inverters at the retired Liddell Power Station in Muswellbrook, with a planned direct connection to TransGrid\u2019s existing 330 kV switchyard. The listing separately reports NSW planning approval for a system of up to 500 MW / 2,000 MWh. AGL Energy Limited is listed as Lead Organisation, and the stated project period is 1 March 2024 to 31 October 2028. ARENA funding is reported as $35 million, with total project cost reported as $694.68 million. The listing gives its last-updated date as 06 May 2025.", "schema_version": "1.0", "public_unknowns": ["The listing, last updated 06 May 2025, does not specify battery or inverter models or supplier identities; it states the project rating, inverter technology and planned connection.", "The listing mentions procuring local content but provides no tender details, procurement schedule or current procurement status."], "evidence_observed_at": "2026-10-15T14:34:26.238469+00:00", "knowledge_reviewed_at": "2026-10-15T14:41:52.996230+00:00", "decisive_evidence_observed_at": "2026-10-15T14:34:26.238469+00:00", "export_metadata": {"publisher": "CapexCue", "project_title": "AGL Energy \u2013 Liddell Large Scale Battery with advanced inverters; Deployment Project", "original_project_title": "AGL Energy \u2013 Liddell Large Scale Battery with advanced inverters; Deployment Project", "canonical_url": "https://capexcue.com/projects/agl-energy-liddell-large-scale-battery-with-advanced-inverters-deployment-project-efa8f9a7-031/", "release": {"id": "55ef16cd-7475-45a1-b65b-9fa9741f817c", "number": 1, "published_at": "2026-10-15T14:42:32.426686+00:00"}, "release_reference": "release 1 (55ef16cd-7475-45a1-b65b-9fa9741f817c)", "current_dossier_url": "https://capexcue.com/projects/agl-energy-liddell-large-scale-battery-with-advanced-inverters-deployment-project-efa8f9a7-031/", "citation": "CapexCue \u2014 AGL Energy \u2013 Liddell Large Scale Battery with advanced inverters; 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the planned battery is distinct from the retired station."}, "region": {"state": "accepted", "reason": "derived_from_accepted_countries"}, "country": {"state": "accepted", "reason": "Muswellbrook, New South Wales is in Australia; the planned battery is distinct from the retired station."}, "category": {"state": "accepted", "reason": "Muswellbrook, New South Wales is in Australia; the planned battery is distinct from the retired station."}}, "region_codes": ["oceania"], "release_hash": "8bac2606338490fe257e33360ebe2ea9e5224400c248eac110985d60432c2bc7", "assessment_id": "5d2412d0-ecfd-44e4-9935-229ef79a312f", "country_codes": ["AU"], "assessment_hash": "85ce934361866b0e517cf43d418f84b13766f5652d698aa56118014d60563cb8", "country_label": "Australia", "region_label": "Oceania", "type_labels": ["Battery Storage"]}, "date_note": "Project event times are distinct from source publication, observation and dossier release dates. An elapsed plan does not establish completion."}}}