Cygni
Dyness
64/ 100
Strong evidence coverage · 100%
Evidence checked 2026-08-02
Available in Australia · checked 2026-08-02
Buyer evidence: Ready (100% direct coverage).
Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.
Market context
Australia purchasing view
Dyness
64/ 100
Strong evidence coverage · 100%
Evidence checked 2026-08-02
Available in Australia · checked 2026-08-02
Buyer evidence: Ready (100% direct coverage).
AlphaESS
62/ 100
Strong evidence coverage · 100%
Evidence checked 2026-08-02
Available in Australia · checked 2026-08-02
Buyer evidence: Ready (100% direct coverage).
| Measure | Cygni | Smile G3 S5 BAT-9.3S |
|---|---|---|
| Capacity & Usability | ||
| Power & Efficiency | ||
| Longevity (verified) | ||
| Safety & Chemistry | ||
| Guarantee & Backbone | ||
| Energy Ecosystem |
| Measure | Cygni | Smile G3 S5 BAT-9.3S |
|---|---|---|
| Published usable capacity range | 7.3–43.77 kWh | 9.3–37.2 kWh |
| Scored benchmark | 14.59 kWh | 9.3 kWh |
| Chemistry | LFP | LFP |
| Power | 9.999 kW | 5 kW |
| Round-trip | Not recorded | Not recorded |
| Cycle life | 8,000 cycles | Not recorded |
| Evidence | Cygni | Smile G3 S5 BAT-9.3S |
|---|---|---|
| Outcome | Available in Australia | Available in Australia |
| Checked | 2026-08-02 | 2026-08-02 |
| Certifications | BAT-634 and EESS-240878-1 list Cygni M2 through M4 configurations, approved 14 July 2025 and expiring 31 December 2027., BAT-692 and EESS-240878-2 list Cygni M6 through M12 configurations, approved 15 October 2025 and expiring 31 December 2027. | The current Australian approved-battery export lists SMILE-G3-BAT-9.3S and stacks through six modules to 31 December 2027; the exact system datasheet publishes IEC 62619 and AS/NZS 4777.2. |
| Warranty scope | Ten years for the Cygni battery and inverter, subject to the configuration throughput cap, communications requirement and governing exclusions. | The exact Australian datasheet publishes 10-year product and battery-performance warranties, governed by current AlphaESS Australia terms and Australian Consumer Law. |
| Warranty remedy | Repair, replacement or another remedy is provided at Dyness's discretion under the governing terms. | Repair or replacement at AlphaESS's option. |
| Labour and reinstallation | Unconditional full-term site labour coverage was not established and is not credited. Unconditional removal and reinstallation coverage was not established and is not credited. | Installer travel and on-site labour are excluded. Removal and reinstallation are not promised. |
| Freight | Unconditional full-term transport coverage was not established and is not credited. | Replacement-parts freight is covered for an accepted claim. |
| Transfer and registration | An automatic transfer right was not established in the reviewed governing document. Continuous communications are required; without communications the published warranty term reduces to three years. | Transfers automatically with the building while the system remains installed; ownership evidence may be required. Initial serial registration and eligible installation are required. |
| Grid compatibility | Single-phase integrated hybrid family with exact Australian approval entries. DNSP settings and export limits remain site-specific. | The exact S5 configuration is a 230 V single-phase hybrid system with 5 kVA backup and AS/NZS 4777.2 grid regulation; final DNSP approval remains installation-specific. |
| System fit | No exact product pairing recorded | Confirmed: SMILE-G3-S5-INV with SMILE-G3-BAT-9.3S |
| Local product pathway | No separate local pathway recorded | No separate local pathway recorded |
| Buyer evidence | Ready (100% direct coverage): Local availability, buyer evidence, and the publication threshold are confirmed. | Ready (100% 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 | The scored M4 reference avoids the multiple-hub architecture used by larger M6-M12 systems. The manual excludes generator operation and parallel inverter operation; VPP is not inferred. | The exact 9.3 kWh battery module and supported stacks are current Australian approved-battery entries. |
| Sources | Source 1Source 2Source 3Source 4Source 5Source 6Source 7 | 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 Performance & Value class, on the same rubric weighting. Scores are not comparable across classes or tiers. Full methodology.