| Published power range | 320 kW |
| Scored benchmark | 320 kW |
| Rated AC power | 320 kW |
| Peak efficiency | 99.02% |
| Weighted efficiency | 98.8% |
| Number of MPPTs | 6 |
| Max input current / MPPT | 75 A |
| Ingress protection | IP66 |
| Grid & safety certification | IEC 62109 + national grid code certified for 1 market |
| 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.
SG320HX-20 · 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 (%) | 99.02 | datasheet | Source |
| Weighted efficiency (CEC/Euro %) | 98.8 | datasheet | Source |
| Semiconductor technology | Not disclosed | reviewed absence | Source |
| Night standby consumption (W) | 6 | datasheet | Source |
| Design & Flexibility | |||
| Number of MPPTs | 6 | datasheet | Source |
| Max input current per MPPT (A) | 75 | 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 | String only | datasheet | Source |
| Backup / islanding | No backup | datasheet | Source |
| Monitoring & smart features | App + smart features | datasheet | Source +1 |
| Safety & Compliance | |||
| Grid & safety certification | IEC 62109 + grid code, 1 market | datasheet | Source |
| Shutdown / arc safety | String | datasheet | Source |
| Guarantee & Backbone | |||
| Warranty assurance | Parts only | datasheet | Source |
| Financial strength & warranty backing | Stable / listed | datasheet | Source +1 |
| 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 | No VPP capability | reviewed absence | Source +1 |
| EV charging integration | No EV integration | reviewed absence | Source +1 |
| Thermal load management | No thermal load integration | reviewed absence | Source +1 |
| Smart home & IoT depth | No local smart home integration | reviewed absence | Source +1 |
| Firmware & security disclosure | Vulnerability disclosure policy + firmware/security documentation published | datasheet | Source |
review.solar · audit sheet · Solar Analytica inverter rubric v3.7.0 · https://review.solar/cards/sungrow-sg320hx-20-in