Value & Volume
SDT G3
GoodWe
68/ 100
Strong evidence coverage · 100%
Evidence checked 2026-07-31
Available in Australia · checked 2026-07-31
Buyer evidence: Ready (100% direct coverage).
AFCI IntegratedIP66 Rated
Full scorecard Score profile
| Measure | SDT G3 | DNS G3 |
|---|---|---|
| Efficiency | ||
| Design & Flexibility | ||
| Thermal & Physical Resilience | ||
| Features & Integration | ||
| Safety & Compliance | ||
| Guarantee & Backbone | ||
| Energy Ecosystem |
Efficiency
- SDT G3
85 / 100 - DNS G3
70 / 100
Design & Flexibility
- SDT G3
89 / 100 - DNS G3
76 / 100
Thermal & Physical Resilience
- SDT G3
81 / 100 - DNS G3
84 / 100
Features & Integration
- SDT G3
57 / 100 - DNS G3
57 / 100
Safety & Compliance
- SDT G3
78 / 100 - DNS G3
78 / 100
Guarantee & Backbone
- SDT G3
42 / 100 - DNS G3
42 / 100
Energy Ecosystem
- SDT G3
40 / 100 - DNS G3
40 / 100
Key specifications
| Measure | SDT G3 | DNS G3 |
|---|---|---|
| Published maximum AC output range | 5–20 kW | 3–6 kW |
| Scored benchmark | 20 kW | 6 kW |
| Power | 20.0 kW | 6.0 kW |
| Type | String | String |
| Peak eff | 98.6 % | 97.9 % |
| MPPTs | 3 | 2 |
Published maximum AC output range
- SDT G3
- 5–20 kW
- DNS G3
- 3–6 kW
Scored benchmark
- SDT G3
- 20 kW
- DNS G3
- 6 kW
Power
- SDT G3
- 20.0 kW
- DNS G3
- 6.0 kW
Type
- SDT G3
- String
- DNS G3
- String
Peak eff
- SDT G3
- 98.6 %
- DNS G3
- 97.9 %
MPPTs
- SDT G3
- 3
- DNS G3
- 2
Australia evidence
| Evidence | SDT G3 | DNS G3 |
|---|---|---|
| Outcome | Available in Australia | Available in Australia |
| Checked | 2026-07-31 | 2026-07-31 |
| Certifications | The exact Australian datasheet publishes IEC 62109 and AS/NZS 4777.2 compliance. | The exact Australian datasheet publishes IEC 62109 and AS/NZS 4777.2 compliance. |
| Warranty scope | Australia; GoodWe's standard terms provide five years of full inverter cover plus a further five years of replacement-parts cover for eligible SDT units, subject to registration and terms. | Australia; GoodWe's standard terms provide five years of full inverter cover plus a further five years of replacement-parts cover for eligible DNS G3 units, subject to registration and terms. |
| Grid compatibility | Three-phase 400 V Australian string-inverter family with AS/NZS 4777.2 compliance. | Single-phase 230 V Australian string-inverter family with AS/NZS 4777.2 compliance. |
| 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 | GoodWe Australia publishes the exact SDT G3 family and local warranty terms. | GoodWe Australia publishes the exact DNS G3 family and local warranty terms. |
| Sources | Source 1Source 2Source 3 | Source 1Source 2Source 3 |
Outcome
- SDT G3
- Available in Australia
- DNS G3
- Available in Australia
Checked
- SDT G3
- 2026-07-31
- DNS G3
- 2026-07-31
Certifications
- SDT G3
- The exact Australian datasheet publishes IEC 62109 and AS/NZS 4777.2 compliance.
- DNS G3
- The exact Australian datasheet publishes IEC 62109 and AS/NZS 4777.2 compliance.
Warranty scope
- SDT G3
- Australia; GoodWe's standard terms provide five years of full inverter cover plus a further five years of replacement-parts cover for eligible SDT units, subject to registration and terms.
- DNS G3
- Australia; GoodWe's standard terms provide five years of full inverter cover plus a further five years of replacement-parts cover for eligible DNS G3 units, subject to registration and terms.
Grid compatibility
- SDT G3
- Three-phase 400 V Australian string-inverter family with AS/NZS 4777.2 compliance.
- DNS G3
- Single-phase 230 V Australian string-inverter family with AS/NZS 4777.2 compliance.
Buyer evidence
- SDT G3
- Ready (100% direct coverage): Local availability, buyer evidence, and the publication threshold are confirmed.
- DNS G3
- Ready (100% direct coverage): Local availability, buyer evidence, and the publication threshold are confirmed.
Safety notice
- SDT G3
- No model-specific notice recorded
- DNS G3
- No model-specific notice recorded
Review note
- SDT G3
- GoodWe Australia publishes the exact SDT G3 family and local warranty terms.
- DNS G3
- GoodWe Australia publishes the exact DNS G3 family and local warranty terms.
Sources
Australia purchase checks
Make the shortlist quote-ready
These checks sit beside the benchmark score. They are site, tariff and contract questions that no product score can settle.
- Lock the exact model and installation-date listing.
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.
- Obtain the site-specific connection settings.
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.
- Test savings against the household, not a brochure.
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.
- Specify the operating outcome.
Confirm the proposed inverter phase, PV input design, battery pairing and export-control configuration against the final connection agreement. A suitable product can still require a different site design or control setting.
- Name the party responsible after installation.
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.
Where the comparison separates
OverallSDT G3 leads the global score by 3 points.
Strongest dimensionsSDT G3: Design & Flexibility · DNS G3: Thermal & Physical Resilience
Largest differenceSDT G3 has the largest pillar edge in Efficiency (15 points).
Market evidenceSDT G3: buyer ready · DNS G3: buyer ready
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 Value & Volume class, on the same rubric weighting. Scores are not comparable across classes or tiers. Full methodology.