Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.
Market context
Germany purchasing view
SOFAR | ESI-5K-T1 / ESI-6.5K-T1 / ESI-8K-T1 / ESI-9.9K-T1-A / ESI-10K-T1 / ESI-12K-T1; scored model ESI-12K-T1
73/ 100
Strong evidence coverage · 100%
Evidence checked 2026-08-30
Available in Germany · checked 2026-08-30
Buyer evidence: Ready (100% direct coverage).
Enphase | IQ9N-A-INT; 427 VA exact Australian model
63/ 100
Strong evidence coverage · 100%
Evidence checked 2026-08-30
Available in Germany · checked 2026-08-30
Buyer evidence: Ready (100% direct coverage).
marks the better value on rows where a higher number is better. Temperature coefficient counts as higher when it is closer to zero. Size measures such as rated power carry no marker, because a larger product is a different choice rather than a better one.
| Measure | PowerAll ESI T1 | IQ9N-A Microinverter |
|---|---|---|
| Efficiency | ||
| Design & Flexibility | ||
| Thermal & Physical Resilience | ||
| Features & Integration | ||
| Safety & Compliance | ||
| Guarantee & Backbone | ||
| Energy Ecosystem |
marks the better value on rows where a higher number is better. Temperature coefficient counts as higher when it is closer to zero. Size measures such as rated power carry no marker, because a larger product is a different choice rather than a better one.
| Measure | PowerAll ESI T1 | IQ9N-A Microinverter |
|---|---|---|
| Architecture | Hybrid inverter | Microinverter |
| Published rated AC power range | 5–12 kW | 0.427 kW |
| Scored benchmark | 12 kW | Not stated |
| Power | 12.0 kW | 0.427 kW |
| Type | Hybrid | Micro |
| Peak eff | 98.2 % | Not recorded |
| MPPTs | 3 (better value on this row) | 1 |
| Evidence | PowerAll ESI T1 | IQ9N-A Microinverter |
|---|---|---|
| Outcome | Available in Germany | Available in Germany |
| Checked | 2026-08-30 | 2026-08-30 |
| Certifications | The German ESI-5-12K-T1 product page names 5 through 12 kW, including ESI-12K-T1. The manufacturer manual documents VDE-AR-N 4105 logic-interface and NA-protection functions for this family. | The German store page names SKU IQ9N-A-INT and 427 VA. The IQ9N-A-INT sheet lists EN IEC 62109-1/-2 safety and CE labelling. |
| Warranty scope | Germany; no German inverter warranty naming ESI-12K-T1 was attached, so six-field terms are not transferred from the Australian Version 2.4 factory warranty. | Germany; the 30 September 2025 German microinverter schedule explicitly lists IQ9N-A-INT for a 25-year product term from activation. |
| Warranty remedy | Not established | Enphase may repair, replace or provide a depreciated market-value refund. |
| Labour and reinstallation | Not established | Uninstall, reinstall and ordinary site labour are not limited-warranty entitlements. Removal and reinstallation are excluded from the limited warranty. |
| Freight | Not established | Eligible RMA return freight uses Enphase's prepaid label. Enphase pays shipment of the repaired or replacement product after an accepted claim. |
| Transfer and registration | Not established | Same-site transfer requires the owner-change form and fee within 30 days. Covered SKUs must match the German schedule. Continuous internet connectivity is required except for interruptions outside the owner's reasonable control. |
| Grid/network approval evidence | Three-phase PowerAll inverter family named on the German product page. The manual documents VDE-AR-N 4105. DNSP and site settings remain installation-specific. ESI 3-6K-S1 and HYD 5-20KTL-3PH are different identities. | The reviewed IQ9N-A-INT sheet prints grid compliance as AS/NZS 4777.2 and does not print VDE-AR-N 4105. German connection approval remains installation-specific. |
| 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 | de.sofarsolar.com names ESI-5-12K-T1. This is not the single-phase ESI 3-6K-S1 record. Manufacturer listing is established; distributor inventory is not inferred. | Enphase's German store lists IQ9N-A-INT. IQ9N-A-DOM-US is a different SKU and is not this record. The INT sheet remains the specification source; distributor stock is not inferred. |
| Sources | Source 1Source 2Source 3 | Source 1Source 2Source 3Source 4 |
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 Inverter class, on the same rubric weighting. Scores are not comparable across classes or tiers. Full methodology.