Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.
Market context
Global benchmark
Solis | S6-GR1P3K-S / S6-GR1P3.6K-S / S6-GR1P4K-S / S6-GR1P4.6K-S / S6-GR1P5K-S / S6-GR1P6K-S; scored model S6-GR1P6K-S
62/ 100
Strong evidence coverage · 100%
Evidence checked 2026-09-01
Deye | SUN-5K-SG03LP1-AU
67/ 100
Strong evidence coverage · 100%
Evidence checked 2026-08-06
Full scorecardmarks 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 | S6-GR1P | SUN-5K-SG03LP1-AU |
|---|---|---|
| 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 | S6-GR1P | SUN-5K-SG03LP1-AU |
|---|---|---|
| Architecture | Solar-only string inverter | Hybrid inverter |
| Published rated AC power range | 3–6 kW | 5 kW |
| Scored benchmark | 6 kW | Not stated |
| Power | 6.0 kW | 5.0 kW |
| Type | String | Hybrid |
| Peak eff | 97.7 % (better value on this row) | 97.6 % |
| MPPTs | 2 | 2 |
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 Value & Volume class, on the same rubric weighting. Scores are not comparable across classes or tiers. Full methodology.