# Hornsdale Power Reserve

Publisher: CapexCue
Canonical dossier: <https://capexcue.com/projects/hornsdale-power-reserve-b1b37c42-327/>
Dossier reference: release 1 (5334ea73-8751-4d49-8f1e-541c4cb0920a)

Released project intelligence

Oldest supporting observation: 2026-10-17T15:46:31.713527+00:00
Dossier released: 2026-10-17T16:06:17.631156+00:00
Source report dates and capture dates are listed per fact below; neither establishes an event date.

## Project summary

Hornsdale Power Reserve is a grid-scale battery storage asset near Jamestown, South Australia, adjacent to Hornsdale Wind Farm. Its initial 100 MW/129 MWh installation was completed in November 2017, followed by a 50 MW/64.5 MWh expansion completed in September 2020. The source says the 150 MW facility was upgraded to provide inertia support. The source also reports that the battery provides grid-support services and stores energy for delivery to the grid when needed.

## Evidence limits and unknowns

- The page documents completed work in November 2017 and September 2020 but does not establish whether a current procurement package, further planned expansion, budget, or supplier opportunity exists.

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.
Battery storage: an initial 100 MW/129 MWh installation, followed by a 50 MW/64.5 MWh expansion; the source says the full 150 MW was upgraded with Tesla’s Virtual Machine Mode to provide inertia support.
Source: hornsdalepowerreserve.com.au — https://hornsdalepowerreserve.com.au/ | published unknown | observed 2026-10-17T15:46:31.713527+00:00

Project overview
Oldest decisive evidence: 2026-10-17T15:46:31.713527+00:00
Newest evidence: 2026-10-17T15:46:31.713527+00:00
Knowledge reviewed: 2026-10-17T16:04:46.478439+00:00
Publication reviewed: 2026-10-17T16:06:07.583098+00:00

## Date
The initial 100 MW/129 MWh was completed in November 2017; the 50 MW/64.5 MWh expansion was completed in September 2020.
Status: actual
Attribution: hornsdalepowerreserve.com.au
Source: hornsdalepowerreserve.com.au — https://hornsdalepowerreserve.com.au/ | published unknown | observed 2026-10-17T15:46:31.713527+00:00

## Name
Hornsdale Power Reserve
Status: reported
Attribution: hornsdalepowerreserve.com.au
Source: hornsdalepowerreserve.com.au — https://hornsdalepowerreserve.com.au/ | published unknown | observed 2026-10-17T15:46:31.713527+00:00

## Scope
Battery storage: an initial 100 MW/129 MWh installation, followed by a 50 MW/64.5 MWh expansion; the source says the full 150 MW was upgraded with Tesla’s Virtual Machine Mode to provide inertia support.
Status: actual
Attribution: hornsdalepowerreserve.com.au
Source: hornsdalepowerreserve.com.au — https://hornsdalepowerreserve.com.au/ | published unknown | observed 2026-10-17T15:46:31.713527+00:00

## Sector
Grid-scale battery energy storage.
Status: reported
Attribution: hornsdalepowerreserve.com.au
Source: hornsdalepowerreserve.com.au — https://hornsdalepowerreserve.com.au/ | published unknown | observed 2026-10-17T15:46:31.713527+00:00

## Activity
The source reports that the battery provides essential grid-support services and stores energy for delivery to the grid when needed.
Status: reported
Attribution: hornsdalepowerreserve.com.au
Source: hornsdalepowerreserve.com.au — https://hornsdalepowerreserve.com.au/ | published unknown | observed 2026-10-17T15:46:31.713527+00:00

## Location
Approximately 15 km north of Jamestown, South Australia, next to the Hornsdale Wind Farm; the source also describes it as about a three-hour drive from Adelaide.
Status: reported
Attribution: hornsdalepowerreserve.com.au
Source: hornsdalepowerreserve.com.au — https://hornsdalepowerreserve.com.au/ | published unknown | observed 2026-10-17T15:46:31.713527+00:00


## Cite this dossier

CapexCue — Hornsdale Power Reserve — dossier released 2026-10-17T16:06:17.631156+00:00, release 1 (5334ea73-8751-4d49-8f1e-541c4cb0920a) — https://capexcue.com/projects/hornsdale-power-reserve-b1b37c42-327/.

For current information and later dossier updates, visit <https://capexcue.com/projects/hornsdale-power-reserve-b1b37c42-327/>.
This file records the release identified above; the current dossier may change.