Tracker · Energy
Home batteries and storage
Storage is counted in gigawatt-hours (GWh), and 1 GWh is 1,000 megawatt-hours (MWh). Battery size is in kilowatt-hours (kWh). The Clean Energy Regulator is the Australian Government regulator that administers schemes to measure and reduce carbon emissions, and it publishes the data on home batteries approved under the Cheaper Home Batteries Program.
Tesla storage, Q3 2026
Tesla release, 2 Oct 2026
Rebate batteries approved, to 30 Sep 2026
Clean Energy Regulator, published 15 Oct 2026
Added in the June quarter 2026
Our calculation from Clean Energy Regulator data: 13,414.1 less 8,967.2 MWh
Average battery size
May–June 2026, down from 36 kWh in April
Tesla energy storage deployed, by quarter
Q3 2026 (latest): 13.7 GWh
GWh deployed worldwide (Megapack and Powerwall combined). Source: Tesla Q3 2026 production, deliveries and deployments, 2 Oct 2026 (filed with the US SEC) and Tesla Q2 2026 Update (filed with the US SEC) and earlier quarterly updates. Tesla does not split Powerwall from Megapack or report storage by country.
By state and territory, to 30 Sep 2026
| State or territory | MWh | Share |
|---|---|---|
| NSW | 5,599.7 | 36.6% |
| VIC | 3,184.0 | 20.8% |
| QLD | 3,171.3 | 20.7% |
| SA | 1,568.4 | 10.3% |
| WA | 1,322.9 | 8.7% |
| ACT | 289.6 | 1.9% |
| TAS | 113.8 | 0.7% |
| NT | 38.1 | 0.2% |
| Total | 15,287.8 | 100% |
Capacity approved under the Cheaper Home Batteries Program, July 2025 to 30 Sep 2026, as published by the Clean Energy Regulator on 15 Oct 2026. MWh is megawatt-hours, and 1,000 MWh is 1 gigawatt-hour (GWh). Shares are our calculation. Source: Clean Energy Regulator, September quarter 2026 data workbook, Figure 3.1 (data as at 30 Sep 2026, published 15 Oct 2026). Figures can be revised as installations are validated.
Change log
- Updated the state table and the total to the regulator's September quarter figures, data as at 30 Sep 2026 and published on 15 Oct 2026. Approved capacity is 15,287.8 MWh (15.3 GWh), and New South Wales has 36.6%. Changed the June quarter figure to about 4.4 GWh (13,414.1 less 8,967.2 MWh). Our story.
- Added Tesla's Q3 2026 storage figure of 13.7 GWh, from its production, deliveries and deployments release of 2 Oct 2026. It is Tesla's second-highest quarter, after 14.2 GWh in Q4 2025.
- Added the regulator's June quarter figures (published 9 Sep 2026). Our story.
- Added Tesla's Q2 2026 storage figure of 13.5 GWh.
How we collect this
- Tesla figures come from its quarterly production, deliveries and deployments release and its quarterly update, both filed with the US SEC.
- Australian figures come from the Clean Energy Regulator's quarterly carbon market report and its downloadable data. State figures are the regulator's own, rounded to one decimal place, and the shares are our calculation.
- The regulator does not break its data down by battery brand, so these figures are not specific to Tesla's batteries.