# Hazelwood Battery Energy Storage System expansion (HBESS 2) Publisher: CapexCue Canonical dossier: Dossier reference: release 2 (15d4c661-7cd6-4c62-bcb5-f5d1c3336445) Released project intelligence Oldest supporting observation: 2026-10-17T15:46:26.005901+00:00 Dossier released: 2026-10-19T21:28:20.192975+00:00 Source report dates and capture dates are listed per fact below; neither establishes an event date. ## Project summary Hazelwood Battery Energy Storage System expansion (HBESS 2) is the planned 150 MW / 300 MWh addition at the former Hazelwood Power Station site in Gippsland, Victoria, Australia. ENGIE distinguishes it from the existing Hazelwood BESS, reported as 150 MW / 150 MWh and operating since 2023; the Victorian Government release also reports that the existing battery was commissioned in 2023. (ENGIE announcement dated 16 October 2026; Victorian Government release published Friday 16 October 2026.) ENGIE announced financial close on 16 October 2026 and reported that key contracts had been executed. It names Sungrow to supply battery technology and Elecnor to deliver balance-of-plant and associated infrastructure works. ENGIE planned construction to commence later in 2026 and targeted commercial operations from 2028; the government release separately expected project completion in 2028. These are plans and expectations, not reports of achieved construction or completion. (ENGIE announcement dated 16 October 2026; Victorian Government release published Friday 16 October 2026.) The Victorian Government release reports that Hazelwood BESS Line Co Pty Ltd was declared a Declared Transmission System Operator, allowing the project to use existing transmission infrastructure. It also describes intended use of existing electricity connections and infrastructure; this does not confirm that the expansion’s grid connection is complete. The release describes a step towards financial close, while ENGIE reports that financial close was reached. The supplied reports do not establish a subsequent reversal. (Victorian Government release published Friday 16 October 2026; ENGIE announcement dated 16 October 2026.) ## Evidence limits and unknowns - The supplied announcements do not establish current construction progress, a completed grid connection or energisation, or the declaration instrument’s effective date and conditions. (ENGIE announcement dated 16 October 2026; Victorian Government release published Friday 16 October 2026.) - The supplied material does not identify project ownership, any remaining unawarded supplier package, a procurement timetable or an open buying window. ENGIE reports key contracts executed; that does not establish whether any procurement remains available. (ENGIE announcement dated 16 October 2026; Victorian Government release published Friday 16 October 2026.) Current purchasing availability: unknown. Source-dated plans do not establish current progress or available supplier packages. ## Project metadata Country: Australia Region: Oceania Physical assets: Battery Storage Derived from the exact released evidence; unresolved fields remain unclassified. ## Project category Energy Derived from the reviewed scope statement; delivery stage remains unclassified. Planned addition of a 150MW / 300MWh battery energy storage system. The article distinguishes this expansion from the existing Hazelwood BESS, reported as 150MW / 150MWh and operating since 2023. Source: engie.com.au — https://engie.com.au/media-news/engie-reaches-financial-close-on-hazelwood-battery-expansion | published unknown | observed 2026-10-17T15:46:26.005901+00:00 Project overview Oldest decisive evidence: 2026-10-17T15:46:26.005901+00:00 Newest evidence: 2026-10-19T17:59:20+02:00 Knowledge reviewed: 2026-10-19T21:28:20.192975+00:00 Publication reviewed: 2026-10-19T21:28:20.192975+00:00 ## Date Financial close announcement dated 16 October 2026 Status: reported Attribution: engie.com.au Source: engie.com.au — https://engie.com.au/media-news/engie-reaches-financial-close-on-hazelwood-battery-expansion | published unknown | observed 2026-10-17T15:46:26.005901+00:00 ## Name Hazelwood Battery Energy Storage System expansion (HBESS 2) Status: reported Attribution: engie.com.au Source: engie.com.au — https://engie.com.au/media-news/engie-reaches-financial-close-on-hazelwood-battery-expansion | published unknown | observed 2026-10-17T15:46:26.005901+00:00 ## Scope Planned addition of a 150MW / 300MWh battery energy storage system. The article distinguishes this expansion from the existing Hazelwood BESS, reported as 150MW / 150MWh and operating since 2023. Status: planned Attribution: engie.com.au Source: engie.com.au — https://engie.com.au/media-news/engie-reaches-financial-close-on-hazelwood-battery-expansion | published unknown | observed 2026-10-17T15:46:26.005901+00:00 ## Country Australia Status: reported Attribution: engie.com.au Source: engie.com.au — https://engie.com.au/media-news/engie-reaches-financial-close-on-hazelwood-battery-expansion | published unknown | observed 2026-10-17T15:46:26.005901+00:00 ## Location Hazelwood site, at the former Hazelwood Power Station site, Victoria, Australia Status: reported Attribution: engie.com.au Source: engie.com.au — https://engie.com.au/media-news/engie-reaches-financial-close-on-hazelwood-battery-expansion | published unknown | observed 2026-10-17T15:46:26.005901+00:00 ## Contractor Construction partners: Sungrow is to supply battery technology; Elecnor is to deliver balance-of-plant and associated infrastructure works. The article reports key contracts executed. Status: reported Attribution: engie.com.au Source: engie.com.au — https://engie.com.au/media-news/engie-reaches-financial-close-on-hazelwood-battery-expansion | published unknown | observed 2026-10-17T15:46:26.005901+00:00 ## Next Milestone Construction was planned to commence later in 2026; commercial operations were targeted from 2028. Status: planned Attribution: engie.com.au Source: engie.com.au — https://engie.com.au/media-news/engie-reaches-financial-close-on-hazelwood-battery-expansion | published unknown | observed 2026-10-17T15:46:26.005901+00:00 ## Financing Stage ENGIE announced that the project had reached financial close. Status: reported Attribution: engie.com.au Source: engie.com.au — https://engie.com.au/media-news/engie-reaches-financial-close-on-hazelwood-battery-expansion | published unknown | observed 2026-10-17T15:46:26.005901+00:00 ## Source qualifications and unresolved questions - Canonical facts retain their original source scope. Later source qualifications do not redefine the original asset or establish open supplier procurement. Published Friday 16 October 2026. (reported). Office of the Premier, Victorian Government (externally supplied capture), source observed 2026-10-19; https://www.premier.vic.gov.au/hazelwood-battery-expansion-boosts-gippsland-energy-jobs The release places the expansion at the former Hazelwood Power Station site in Gippsland. (reported). Office of the Premier, Victorian Government (externally supplied capture), source observed 2026-10-19; https://www.premier.vic.gov.au/hazelwood-battery-expansion-boosts-gippsland-energy-jobs The release describes a planned addition of a 150-megawatt battery with 300 megawatt-hours of storage to the existing battery, which it reports was commissioned in 2023. The additional battery is planned; the 2023 commissioning describes the existing battery. (planned). Office of the Premier, Victorian Government (externally supplied capture), source observed 2026-10-19; https://www.premier.vic.gov.au/hazelwood-battery-expansion-boosts-gippsland-energy-jobs The Government reports that it declared Hazelwood BESS Line Co Pty Ltd a Declared Transmission System Operator, allowing the project to use existing transmission infrastructure. This is the announcement’s report of the designation, not the declaration instrument. (reported). Office of the Premier, Victorian Government (externally supplied capture), source observed 2026-10-19; https://www.premier.vic.gov.au/hazelwood-battery-expansion-boosts-gippsland-energy-jobs The release says the project will make use of existing electricity connections and infrastructure; this is a stated project intention, not evidence that the expansion’s grid connection is complete. (planned). Office of the Premier, Victorian Government (externally supplied capture), source observed 2026-10-19; https://www.premier.vic.gov.au/hazelwood-battery-expansion-boosts-gippsland-energy-jobs The government release describes a key step towards ENGIE’s Hazelwood Battery expansion reaching financial close. (reported). Office of the Premier, Victorian Government (externally supplied capture), source observed 2026-10-19; https://www.premier.vic.gov.au/hazelwood-battery-expansion-boosts-gippsland-energy-jobs Project completion was expected in 2028; the release does not report completion as achieved. (planned). Office of the Premier, Victorian Government (externally supplied capture), source observed 2026-10-19; https://www.premier.vic.gov.au/hazelwood-battery-expansion-boosts-gippsland-energy-jobs ## Cite this dossier CapexCue — Hazelwood Battery Energy Storage System expansion (HBESS 2) — dossier released 2026-10-19T21:28:20.192975+00:00, release 2 (15d4c661-7cd6-4c62-bcb5-f5d1c3336445) — https://capexcue.com/projects/hazelwood-battery-energy-storage-system-expansion-hbess-2-697a71b1-516/. For current information and later dossier updates, visit . This file records the release identified above; the current dossier may change.