Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.
Market context
Germany purchasing view
RCT Power | Power Storage DC 6.0 / 8.0 / 10.0; scored DC 10.0 at 9.9 kW
60/ 100
Strong evidence coverage · 100%
Evidence checked 2026-09-01
Available in Germany · checked 2026-08-16
Buyer evidence: Ready (100% direct coverage).
Full scorecardEnphase | 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 | Power Storage DC | 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 | Power Storage DC | IQ9N-A Microinverter |
|---|---|---|
| Architecture | Hybrid inverter | Microinverter |
| Published rated AC power range | 6–9.9 kW | 0.427 kW |
| Scored benchmark | 9.9 kW | Not stated |
| Power | 9.9 kW | 0.427 kW |
| Type | Hybrid | Micro |
| Peak eff | 98.6 % | Not recorded |
| MPPTs | 2 (better value on this row) | 1 |
| Evidence | Power Storage DC | IQ9N-A Microinverter |
|---|---|---|
| Outcome | Available in Germany | Available in Germany |
| Checked | 2026-08-16 | 2026-08-30 |
| Certifications | DC 6.0 has VDE-AR-N 4105 certificates U20-0978/U20-0980; DC 8.0 and 10.0 have U20-0672/U20-0676, with firmware 2.3 or later. | 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; ten years from purchase, capped at 123 months after factory dispatch, with stated exchange-process exclusions. | Germany; the 30 September 2025 German microinverter schedule explicitly lists IQ9N-A-INT for a 25-year product term from activation. |
| Warranty remedy | RCT may supply an equivalent refurbished replacement under its exchange process. | Enphase may repair, replace or provide a depreciated market-value refund. |
| Labour and reinstallation | An installer allowance may apply, but travel and onsite installation are excluded. Removal and reinstallation are excluded. | Uninstall, reinstall and ordinary site labour are not limited-warranty entitlements. Removal and reinstallation are excluded from the limited warranty. |
| Freight | Return freight may be reimbursed through the exchange process. | 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 | An unrestricted later-owner transfer right was not established. Purchase date, factory dispatch limit, serial identity and claim process control coverage. | 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 | Current German DC 6.0, 8.0 and 10.0 family. DC 4.0 and legacy DC 5.0 remain outside this exact scored identity. | 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 | The current exact datasheet begins at DC 6.0. Nearby 4.0 and legacy 5.0 references are not silently absorbed. | 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.