How much does a Tesla Powerwall 3 cost in Australia?

The Tesla Powerwall 3 has a supply price of approximately $9,000 in Australia. Installed cost including the Tesla solar inverter and labour typically runs $12,000 to $15,000 depending on the complexity of the installation. After the federal Cheaper Home Batteries rebate (approximately $372/kWh usable, which equates to roughly $5,022 on the 13.5kWh Powerwall 3), the net installed cost is closer to $7,000 to $10,000.

What are the specs of the Tesla Powerwall 3?

The Powerwall 3 has 13.5 kWh usable capacity, 11.5 kW continuous output power, and 22 kW peak power. It uses LFP (lithium iron phosphate) chemistry, has a 10-year warranty with 70% capacity retention guarantee, IP67 weatherproofing rating, and operates from -20°C to 50°C. Critically, it has an integrated solar inverter — no separate inverter is required.

Is the Tesla Powerwall 3 worth it compared to BYD or Sungrow?

The Powerwall 3 is a premium product at a premium price. Its integrated inverter simplifies installation and its 11.5kW continuous output is class-leading. However, at $9,000 supply price versus BYD HVS 10.2 at $5,500 or Sungrow SBR160 at $10,500 (but with 16kWh), the price-per-kWh is not the best in market. For buyers who prioritise simplicity, app experience, and blackout protection, it's an excellent choice. For pure value, BYD or Sungrow offer more kWh per dollar.

Does the Tesla Powerwall 3 work during a blackout?

Yes. The Powerwall 3 is grid-forming capable — it can island your home during a grid outage and power your loads independently. The integrated 11.5kW inverter can support most standard household loads simultaneously, including air conditioning. Up to 4 Powerwall 3 units can be stacked for 54kWh total capacity.

Does the Powerwall 3 qualify for the Australian battery rebate?

Yes. The Tesla Powerwall 3 is eligible for the federal Cheaper Home Batteries Program (CHBP), active from 1 July 2025. The rebate is approximately $372 per usable kWh and is applied at the point of sale by your Tesla Certified Installer. On the 13.5kWh Powerwall 3, this equates to approximately $5,022 in rebate value.

Tesla Powerwall 3 Review Australia 2026: Price & Specs

Tesla has sold more home batteries in Australia than any other brand. The Powerwall 3, released in late 2024 and widely available across Australia by early 2025, is a significant upgrade over its predecessor. It integrates the solar inverter directly into the battery unit, simplifies installation, and delivers class-leading power output. But at a supply price of $9,000 — before installation — it’s also one of the more expensive options on the market.

This review looks at whether the Powerwall 3 justifies the premium, who it’s best suited for, and how it compares to the main alternatives.

Tesla Powerwall 3 Specs

Spec	Value
Usable Capacity	13.5 kWh
Continuous Power	11.5 kW
Peak Power	22 kW
Battery Chemistry	LFP (Lithium Iron Phosphate)
Round-Trip Efficiency	89%
Solar Inverter	Integrated (no separate inverter needed)
DC-Coupled	Yes
AC-Coupled	Yes
Grid-Forming (blackout)	Yes
Scalable	Yes — up to 4 units (54 kWh)
IP Rating	IP67
Operating Temp	-20°C to 50°C
Warranty	10 years, 70% capacity retention
Weight	130 kg
Dimensions	609 × 1,105 × 193 mm

The standout spec is the 11.5 kW continuous output — roughly double what most competitors deliver. This means you can run your air conditioner, oven, and other high-draw appliances simultaneously during a blackout without the system tripping.

What’s New in Powerwall 3 vs Powerwall 2?

The biggest change is the integrated solar inverter. The Powerwall 2 required a separate solar inverter (Powerwall 2 itself was AC-coupled to an existing inverter). The Powerwall 3 includes its own solar inverter capable of handling up to 20 kW of DC solar input across 6 strings. This eliminates the need for a separate solar inverter entirely, simplifying the installation and reducing overall system cost.

Other improvements:

Power output up from 5kW continuous (Powerwall 2) to 11.5kW
Peak power up to 22kW (critical for motor start-up loads)
IP67 rating vs IP67 (matched)
LFP chemistry retained — stable, safe, no cobalt

Price and Value

The Tesla Powerwall 3 supply price in Australia is approximately $9,000. The full installed system cost — including labour, electrical work, gateway device, and in new installations the integrated inverter function — typically runs:

New solar + storage system: $12,000 to $15,000 (solar panels + Powerwall 3, no separate inverter needed)
Battery-only retrofit to existing solar: $12,000 to $15,000 (requires Tesla solar inverter or AC-coupling to existing inverter)

After the federal battery rebate (~$5,022 on 13.5kWh), the net cost lands around $7,000 to $10,000.

Price Per kWh (Installed, Pre-Rebate)

Battery	Capacity	Supply Price	$/kWh
Growatt APX HV 10.0	10.24 kWh	$4,500	$440
BYD HVS 10.2	10.2 kWh	$5,500	$539
GoodWe ESA 16kWh	16 kWh	$5,300	$331
Sungrow SBR160	16 kWh	$10,500	$656
Tesla Powerwall 3	13.5 kWh	$9,000	$667
Enphase IQ 5P	5 kWh	$8,200	$1,640

At $667/kWh, the Powerwall 3 is mid-range in the market. It’s not the cheapest per kWh (that’s the GoodWe ESA at $331), but you’re also getting an integrated inverter worth $2,000 to $3,000 — so the effective cost comparison shifts depending on whether you need that inverter.

Key Takeaway: If you’re building a new solar + storage system from scratch, the Powerwall 3’s integrated inverter means you only pay for one device where competitors require two. Factor that in when comparing sticker prices.

Pros and Cons

What we like:

Integrated solar inverter — eliminates one device, one failure point, and $2,000–$3,000 in additional hardware
11.5kW continuous output — highest in class; protects the whole house during blackouts
Tesla app and Autopilot — the software experience remains best-in-class; Powerwall autopilot learns your usage and optimises charging automatically
IP67 weatherproofing — can be installed outdoors without any weather cover
Tesla installer network — Tesla Certified Installers are well-distributed and experienced

What we don’t like:

Supply waiting periods — Tesla Powerwall 3 regularly has 4 to 12 week supply queues in popular states
Ecosystem lock-in — the Powerwall 3 integrates most cleanly with Tesla’s own solar panels and roof. Retrofitting to existing non-Tesla solar requires additional hardware
89% round-trip efficiency — Sungrow’s SBR160 achieves 97%, meaning Tesla loses more energy per cycle
Price — at $9,000 supply, it’s significantly more expensive than BYD and GoodWe alternatives with similar usable capacity

Comparing Powerwall 3 to Alternatives

Tesla Powerwall 3 vs Sungrow SBR160

The Sungrow SBR160 offers 16kWh of capacity (vs 13.5kWh) and 97% round-trip efficiency (vs 89%) at a supply price of $10,500. However, it requires a separate Sungrow SH-series hybrid inverter (add $2,000–$3,000), is DC-coupled only, and delivers just 9.6kW continuous power vs 11.5kW.

For a 3-phase home with higher energy needs, the Sungrow setup can be more economical total system cost. For a single-phase home wanting simplicity, Powerwall 3 wins on ease.

Read the full comparison: Tesla Powerwall 3 vs Sungrow SBR160

Tesla Powerwall 3 vs BYD Battery-Box HVM

The BYD HVM 16.6kWh at $8,500 offers 16.6kWh of capacity, 96% efficiency, and broad inverter compatibility (Fronius, SMA, SolarEdge, GoodWe, Sungrow). It’s the “most popular” badge holder on Gridly for good reason. If you have an existing inverter that’s compatible, BYD delivers more storage per dollar.

The trade-off: BYD requires a separate inverter (you may already have one), offers less continuous power (8kW vs 11.5kW), and lacks Tesla’s software sophistication.

Read the full comparison: Tesla Powerwall 3 vs BYD Battery-Box

Tesla Powerwall 3 vs Sigenergy SigenStor TP 16kWh

The Sigenergy TP at $9,200 is the most direct competitor — similar price, 3-phase capable, V2H ready, modular to 54kWh, and Editor’s Pick on Gridly. It offers 15.6kWh at 95% efficiency with a 10kW continuous output. For 3-phase homes wanting V2H capability, Sigenergy is worth a serious look.

View the Sigenergy SigenStor TP product page and Tesla Powerwall 3 product page.

Who Should Buy the Tesla Powerwall 3?

Best fit for:

Households building a new solar + storage system (avoids separate inverter cost)
Single-phase homes wanting maximum blackout protection
Tesla brand loyalists or households already with Tesla vehicles (Powerwall + Tesla car V2H is possible)
Households in areas with frequent blackouts or long grid outage durations

Look elsewhere if:

You have an existing inverter and just want storage (BYD or GoodWe will cost less)
You’re on a 3-phase connection and want grid-forming with high continuous power (Sigenergy TP)
You want maximum kWh per dollar (GoodWe ESA 16kWh or Growatt APX)

Running Costs and Payback

At post-rebate cost of around $8,000–$9,000 installed, and with typical annual savings of $800–$1,400 (depending on tariff, usage, and VPP participation), the Powerwall 3 pays back in approximately 6 to 11 years — within its 10-year warranty window for many households.

Use the battery payback calculator to run your specific numbers.

Compare the Powerwall 3 against all 22 batteries on Gridly at the home battery comparison page, or use the battery cost savings calculator to model your exact payback scenario. See where the Powerwall 3 ranks in our full Top 10, or get the detail on Powerwall 3 pricing and install costs. If you’re weighing up alternatives, read how it compares to the BYD HVM and see our guide to how much does a home battery cost in Australia for a full market cost breakdown.

Tesla Powerwall 3 Review: Price, Specs & Is It Worth It? (2026)