Premium Performance
Maxeon 7
SunPower
85/ 100
Strong evidence coverage · 69%
Evidence checked 2026-07-27
Back-Contact Cell24.1% EfficiencyClass-Leading Temp Coeff15+ Yrs Field-ProvenFinancial note
Full scorecard Score profile
| Measure | Maxeon 7 | Comet 1N |
|---|---|---|
| Architecture & Design | ||
| Efficiency & Yield | ||
| Durability (verified) | ||
| Performance & Degradation | ||
| Guarantee & Backbone | ||
| Sustainability |
Architecture & Design
- Maxeon 7
83 / 100 - Comet 1N
86 / 100
Efficiency & Yield
- Maxeon 7
81 / 100 - Comet 1N
76 / 100
Durability (verified)
- Maxeon 7
85 / 100 - Comet 1N
74 / 100
Performance & Degradation
- Maxeon 7
90 / 100 - Comet 1N
78 / 100
Guarantee & Backbone
- Maxeon 7
82 / 100 - Comet 1N
64 / 100
Sustainability
- Maxeon 7
91 / 100 - Comet 1N
80 / 100
Key specifications
| Measure | Maxeon 7 | Comet 1N |
|---|---|---|
| Published rated power range | 435–445 W | 590–615 W |
| Scored benchmark | 445 W | 615 W |
| Power | 445 W | 615 W |
| Efficiency | 24.1 % | 23.8 % |
| Cell | Back-contact | Back-contact |
| Temp coeff | -0.27 %/°C | -0.26 %/°C |
Published rated power range
- Maxeon 7
- 435–445 W
- Comet 1N
- 590–615 W
Scored benchmark
- Maxeon 7
- 445 W
- Comet 1N
- 615 W
Power
- Maxeon 7
- 445 W
- Comet 1N
- 615 W
Efficiency
- Maxeon 7
- 24.1 %
- Comet 1N
- 23.8 %
Cell
- Maxeon 7
- Back-contact
- Comet 1N
- Back-contact
Temp coeff
- Maxeon 7
- -0.27 %/°C
- Comet 1N
- -0.26 %/°C
Where the comparison separates
OverallMaxeon 7 leads the global score by 9 points.
Strongest dimensionsMaxeon 7: Sustainability · Comet 1N: Architecture & Design
Largest differenceMaxeon 7 has the largest pillar edge in Guarantee & Backbone (18 points).
Evidence coverageMaxeon 7: strong evidence coverage (69%) · Comet 1N: strong evidence coverage (69%)
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 Performance class, on the same rubric weighting. Scores are not comparable across classes or tiers. Full methodology.