How Much Is a Tesla Powerwall? The Straight Answer

The short answer: recent public price guides put an installed Tesla Powerwall 3 at roughly $16,000 before the federal rebate and around $12,700 after it. Treat those as a ballpark. Your switchboard, backup circuits, existing solar and location all move the number.

Where the rebate comes in

At the time of writing (November 2026), the federal Cheaper Home Batteries Program is worth about 6.8 STCs per usable kWh, which is roughly $250 per kWh at current STC prices on the first 14kWh. For a 13.5kWh battery, that works out to roughly $3,400 off. That rate steps down on 1 January 2027, so the longer you wait, the smaller the discount.

What affects the final price

• Backup setup. Backing up selected circuits adds hardware and labour.
• Switchboard work. Older boards sometimes need upgrades.
• Existing solar. Compatibility with your current inverter can change the design.
• Install complexity. Long cable runs and tricky locations cost more.
• Network requirements. Some networks have their own rules for batteries.

How does this compare with other batteries?

For perspective, our battery cost guide shows indicative installed ranges before incentives: roughly $5,000 to $9,000 for 5kWh, $8,000 to $13,000 for 10kWh and $10,000 to $17,000 or more for 13kWh and up. The Powerwall is a well-known unit, and it isn’t the only option. The right battery is the one that suits your usage, your inverter and your budget, not just the one with the famous name.

Do other states change the price?

The federal rebate applies in Queensland, WA, Tasmania and NSW. After that, it differs:

• Queensland: no state battery rebate (Battery Booster closed in 2024).
• WA: a Residential Battery Scheme with rebates up to $1,300 for Synergy customers or up to $3,800 for Horizon Power customers, with a cap of 10kWh and some conditions.
• NSW: a VPP connection incentive that is typically a few hundred dollars.
• Tasmania: federal rebate only.

State schemes can close early or change, so check what is live before you sign.

Questions to ask on any battery quote

• What is the usable capacity?
• Will it back up my home in a blackout, and which circuits?
• Is the rebate shown as a separate line?
• What is the warranty on the battery and the inverter?
• Who installs it, and who looks after me afterwards?

For more, see our sizing guide. We are not affiliated with Tesla, and this isn’t a recommendation for or against any brand.

General information only, current at November 2026. Prices, rebates and tariffs change, so check current terms before you buy.