Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.
Market context
Germany purchasing view
Tesla | Powerwall 3 Expansion part 1807000-xx-y; 13.5 kWh reference unit
58/ 100
Strong evidence coverage · 100%
Evidence checked 2026-08-30
Available in Germany · checked 2026-08-30
Buyer evidence: Ready (100% direct coverage).
Full scorecardEcoFlow | EcoFlow OCEAN 2 three-phase with EF BD-5-S2; 5.02 kWh scored reference, expandable in 5.02 kWh modules
62/ 100
Strong evidence coverage · 100%
Evidence checked 2026-08-23
Available in Germany · checked 2026-08-27
Buyer evidence: Ready (100% direct coverage).
| Measure | Powerwall 3 Expansion | Ocean 2 |
|---|---|---|
| Capacity & Usability | ||
| Power & Efficiency | ||
| Longevity (verified) | ||
| Safety & Chemistry | ||
| Guarantee & Backbone | ||
| Energy Ecosystem |
| Measure | Powerwall 3 Expansion | Ocean 2 |
|---|---|---|
| Architecture | DC-coupled battery | All-in-one energy system |
| Published nominal capacity range | 13.5 kWh | Not stated |
| Chemistry | Other | LFP |
| Power | Not recorded | 3.4 kW |
| Round-trip | Not recorded | Not recorded |
| Cycle life | Not recorded | Not recorded |
| Published nominal battery capacity range | Not stated | 5.02–60 kWh |
| Scored benchmark | Not stated | 5.02 kWh |
| Evidence | Powerwall 3 Expansion | Ocean 2 |
|---|---|---|
| Outcome | Available in Germany | Available in Germany |
| Checked | 2026-08-30 | 2026-08-27 |
| Certifications | Tesla's German Expansion technical-data page names model 1807000-xx-y and lists IEC 62619, IEC 62933-5-2, IEC 61000-6-1:2016 and EN IEC 61000-6-3:2020. | EcoFlow's exact German OCEAN 2 three-phase datasheet lists IEC/EN 62619, IEC/EN 62040-1, IEC/EN 62477-1, ISO 13849-1, VDE-AR-E 2510-50, EN IEC 61000-6-1/-2/-3/-4 and UN 38.3 for battery module EF BD-5-S2. |
| Warranty scope | Germany; the Europe Powerwall warranty effective 19 March 2026 names Powerwall 3 Expansion part 1807000-xx-x. For Germany it publishes ten years and 80 percent retained capacity, subject to registration, internet connectivity and use-profile conditions. | EcoFlow's current German product surface publishes a 15-year warranty for the OCEAN 2 three-phase hybrid inverter and 5.02 kWh LFP battery module. The duration headline does not establish every remedy or service entitlement. |
| Warranty remedy | Tesla may repair with new or refurbished parts, replace with an equivalent product, or refund equivalent market value. | The exact remedy remains governed by EcoFlow's applicable home-solar warranty instrument. |
| Labour and reinstallation | The written warranty does not expressly allocate site labour. Unconditional removal and reinstallation coverage is not stated. | No unconditional full-term owner-selected labour entitlement was established from the duration headline. No unconditional removal and reinstallation entitlement was established from the duration headline. |
| Freight | The written warranty does not expressly allocate ordinary freight. | No unconditional full-term freight entitlement was established from the duration headline. |
| Transfer and registration | A later owner can claim with proof of ownership. Relocation requires Tesla's written consent. Registration and reliable internet are required for the full ten-year term. Non-registration or extended disconnection can reduce coverage to four years. | An automatic later-owner transfer right was not established from the reviewed German product and support surfaces. The applicable warranty instrument and installer commissioning requirements remain controlling. |
| Grid/network approval evidence | No standalone grid interface. In Germany the expansion pack is documented with Powerwall 3P as well as Powerwall 3. Those host inverters are separate records. Site approval remains configuration-specific. | Current German three-phase OCEAN 2. EcoFlow qualifies the published 0 ms transfer by local grid compliance, open-circuit state, load within rated backup output and stable grid conditions. |
| 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 German energy library titles the page Powerwall 3 Expansion (Erweiterung). The German Powerwall 3P datasheet also names 1807000-xx-y as a separate product. This record is not merged with Powerwall 3P. | The exact three-phase OCEAN 2 is offered through EcoFlow's German quote route, and EcoFlow publishes a German service hotline and European support address. Battery-passport readiness is not inferred from present product availability. |
| Sources | Source 1Source 2Source 3 | Source 1Source 2Source 3 |
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.