| Published power range | 4.999–9.999 kW |
| Scored benchmark | 9.999 kW |
| Rated AC power | 9.999 kW |
| Phases | 1-phase |
| Peak efficiency | 98% |
| Weighted efficiency | 97.6% |
| Number of MPPTs | 4 |
| Max input current / MPPT | 20 A |
| Ingress protection | IP66 |
| Warranty period | 15 yr |
| Grid & safety certification | IEC 62109 certified; national grid-code certification not ev |
| Manufacturing track record | 15+ years, field-proven |
Some values are estimated where independent verification was not available: see the full scorecard and review.solar/terms.
EK90 HS5 S3 / S4 · every criterion scored by the live rubric (Solar Analytica inverter rubric v3.7.0), with its recorded value, evidence status, and any linked source. Page 1 carries the buying-decision summary; this page is the full record for verification and right of reply.
| Efficiency | |||
| Peak efficiency (%) | 98.0 | datasheet | Source |
| Weighted efficiency (CEC/Euro %) | 97.6 | datasheet | Source |
| Semiconductor technology | Not disclosed | reviewed absence | Source +1 |
| Design & Flexibility | |||
| Number of MPPTs | 4 | datasheet | Source |
| Max DC:AC oversizing ratio | 2.0 | datasheet | Source |
| Max input current per MPPT (A) | 20 | datasheet | Source |
| Thermal & Physical Resilience | |||
| Thermal management | Fan-cooled | datasheet | Source |
| Ingress protection | IP66 | datasheet | Source |
| Operating temperature range | Standard | datasheet | Source |
| Surge protection | Type II DC + AC SPD | datasheet | Source |
| Features & Integration | |||
| Hybrid / battery capability | Hybrid (battery-ready) + backup | datasheet | Source |
| Backup / islanding | Whole-home / full backup | datasheet | Source |
| Monitoring & smart features | App + smart features | datasheet | Source +1 |
| Safety & Compliance | |||
| Grid & safety certification | IEC 62109 only | reviewed absence | Source +1 |
| Shutdown / arc safety | String with AFCI (integrated, enabled by default) | datasheet | Source |
| Guarantee & Backbone | |||
| Warranty period (yrs) | 15 | datasheet | Source |
| Warranty assurance | Parts only | datasheet | Source |
| Manufacturing track record | 15+ years, field-proven | datasheet | Source |
| Energy Ecosystem | |||
| Open protocol & API maturity | Proprietary / no documented API | reviewed absence | Source +1 |
| VPP & grid services readiness | VPP-capable (protocol ready, no confirmed live program) | datasheet | Source +1 |
| Firmware & security disclosure | Firmware updates referenced; no security documentation | reviewed absence | Source +1 |
review.solar · audit sheet · Solar Analytica inverter rubric v3.7.0 · https://review.solar/cards/saj-ek90-hs5-s3-s4-5-9-999-au