Powerwall 3
Tesla
77/ 100
Strong evidence coverage · 60%
Evidence checked 2026-06-16
Available in Australia · checked 2026-07-13
Buyer evidence: Ready (60% direct coverage).
Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.
Market context
Australia purchasing view
Tesla
77/ 100
Strong evidence coverage · 60%
Evidence checked 2026-06-16
Available in Australia · checked 2026-07-13
Buyer evidence: Ready (60% direct coverage).
Enphase
78/ 100
Strong evidence coverage · 63%
Evidence checked 2026-07-15
Available in Australia · checked 2026-07-16
Buyer evidence: Ready (63% direct coverage).
| Measure | Powerwall 3 | IQ Battery 5P |
|---|---|---|
| Capacity & Usability | ||
| Power & Efficiency | ||
| Longevity (verified) | ||
| Safety & Chemistry | ||
| Guarantee & Backbone | ||
| Energy Ecosystem |
| Measure | Powerwall 3 | IQ Battery 5P |
|---|---|---|
| Published usable capacity range | 13.5 kWh | 5 kWh |
| Chemistry | LFP | LFP |
| Power | 11.5 kW | 3.84 kW |
| Round-trip | 89 % | 96 % |
| Cycle life | Not recorded | Not recorded |
| Evidence | Powerwall 3 | IQ Battery 5P |
|---|---|---|
| Outcome | Available in Australia | Available in Australia |
| Checked | 2026-07-13 | 2026-07-16 |
| Certifications | IEC 61000-6-1/-6-3, IEC 62477-1, IEC 62109-1/-2, IEC 62933-5-2, IEC 62619, UL 1973, UL 9540A and AS/NZS 4777.2 on Tesla's Australia/New Zealand Powerwall 3 datasheet. | The AU/NZ IQ Battery 5P datasheet identifies IQBATTERY-5P-1P-ROW and IQBATTERY-5P-3P-INT and lists AS/NZS 4777.2:2020 + A2, AS IEC 62040.1, EN IEC 62109-1/-2, AS IEC 62619 and UN 38.3. |
| Warranty scope | Australia; Tesla states a 10-year Powerwall 3 warranty. | Australia and New Zealand; 15 years or 6,000 discharged cycles for the IQ Battery 5P, subject to Enphase terms. |
| Grid compatibility | Tesla's Australia/New Zealand Powerwall 3 datasheet states grid connection for Australia and New Zealand and lists AS/NZS 4777.2. Backup Gateway 2 supports single- and three-phase feed-in at 50 Hz. | Backup capability requires an IQ System Controller 3 INT; Enphase certification is required to commission the system. |
| Buyer evidence | Ready (60% direct coverage): Local availability, buyer evidence, and the publication threshold are confirmed. | Ready (63% direct coverage): Local availability, buyer evidence, and the publication threshold are confirmed. |
| Safety notice | No model-specific notice recorded | No model-specific notice recorded |
| Review note | Tesla Australia directs buyers to a Tesla Certified Installer for product selection and installation. Connection approval and export settings remain DNSP-specific. | Enphase publishes an AU product page, local warranty, and installer requirements for this exact SKU family. |
| Sources | Source 1Source 2Source 3 | Source 1Source 2Source 3 |
These checks sit beside the benchmark score. They are site, tariff and contract questions that no product score can settle.
Ask for every model number to appear on the quote and order. The Clean Energy Council product lists are live: STC creation requires listed products at installation, and network requirements may also depend on current approval.
Have the retailer state the supply phase, inverter connection limit, export limit and any export-control cost. The local network connection agreement, not a generic datasheet, determines those settings. See the Australian Government's connection guidance.
Ask which bills or interval data, tariff, feed-in rate, export limit and future loads support the savings and payback claim. Self-consumed electricity and tariff timing usually matter more than a headline feed-in rate. See the system sizing and battery savings guidance.
Define the usable energy, output power, backed-up circuits and outage behaviour. Confirm whether VPP participation, an internet connection, or an additional controller changes the configuration, reserve level, warranty or support path.
Keep the retailer, installer, manufacturer warranty and escalation path in the contract. Australian Consumer Law guarantees apply separately from any manufacturer warranty; where one business supplied both product and installation, it is generally responsible for the remedy. See the ACCC guidance.
A score lead is only meaningful inside this shared class or tier. Weigh it against the specification and evidence rows above before deciding.
Both products are scored in the Premium Integrated class, on the same rubric weighting. Scores are not comparable across classes or tiers. Full methodology.