Principal Solar Institute

A community for development and installation professionals in the solar industry

The Principal Solar Institute Module Ratings

The Principal Solar Institute’s scientifically designed and certified combination of tests and performance standards provide an unbiased, comprehensive rating system – the PSI PV module rating. Seven essential characteristics related to initial and long-term PV module performance are combined to create the PSI Rating:

  • Actual Tested Maximum Power vs. Advertised
  • Temperature Coefficient at Maximum Power
  • Power at Low Irradiance to Power at High Irradiance Ratio
  • Normal Operating Cell Temperature (NOCT)
  • Total Area Efficiency
  • Negative Power Tolerance
  • Annual Power Reduction

These ratings allow you to make comparisons when analyzing PV modules and help you select the optimal PV module.

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PSI Ratings – PV Solar Modules from Seraphim Solar System

Here are the PSI Ratings for modules from Seraphim Solar System, calculated based on initial performance test data. If you don’t see a solar module that you are considering, contact us and we will try to add it.

Rank Manufacturer Model Type Power
(W DC)		 PSI Rating Percentile
1Seraphim Solar SystemSRP-340-6MAMonocrystalline3408.99*96
2Seraphim Solar SystemSRP-335-6MAMonocrystalline3358.86*95
3Seraphim Solar SystemSRP-255-6MCMonocrystalline2558.81*95
4Seraphim Solar SystemSRP-280-6MBMonocrystalline2808.74*94
5Seraphim Solar SystemSRP-330-6MAMonocrystalline3308.72*94
6Seraphim Solar SystemSRP-285-5MAMonocrystalline2858.66*93
7Seraphim Solar SystemSRP-250-6MCMonocrystalline2508.65*93
8Seraphim Solar SystemSRP-325-6MAMonocrystalline3258.59*92
9Seraphim Solar SystemSRP-275-6MBMonocrystalline2758.58*92
10Seraphim Solar SystemSRP-210-5MBMonocrystalline2108.57*92
11Seraphim Solar SystemSRP-280-5MAMonocrystalline2808.53*91
12Seraphim Solar SystemSRP-245-6MCMonocrystalline2458.47*91
13Seraphim Solar SystemSRP-320-6MAMonocrystalline3208.46*90
14Seraphim Solar SystemSRP-265-6PBPolycrystalline2658.43*90
15Seraphim Solar SystemSRP-270-6MBMonocrystalline2708.43*90
16Seraphim Solar SystemSRP-205-5MBMonocrystalline2058.39*89
17Seraphim Solar SystemSRP-320-6PAPolycrystalline3208.39*89
18Seraphim Solar SystemSRP-275-5MAMonocrystalline2758.35*88
19Seraphim Solar SystemSRP-315-6MAMonocrystalline3158.34*88
20Seraphim Solar SystemSRP-240-6PCPolycrystalline2408.34*88
21Seraphim Solar SystemSRP-240-6MCMonocrystalline2408.31*87
22Seraphim Solar SystemSRP-260-6PBPolycrystalline2608.28*86
23Seraphim Solar SystemSRP-315-6PAPolycrystalline3158.28*86
24Seraphim Solar SystemSRP-270-5MAMonocrystalline2708.21*84
25Seraphim Solar SystemSRP-310-6MAMonocrystalline3108.19*83
26Seraphim Solar SystemSRP-235-6PCPolycrystalline2358.17*82
27Seraphim Solar SystemSRP-200-5MBMonocrystalline2008.16*82
28Seraphim Solar SystemSRP-310-6PAPolycrystalline3108.15*81
29Seraphim Solar SystemSRP-235-6MCMonocrystalline2358.14*81
30Seraphim Solar SystemSRP-260-6MBMonocrystalline2608.12*80
31Seraphim Solar SystemSRP-255-6PBPolycrystalline2558.12*80
32Seraphim Solar SystemSRP-305-6MAMonocrystalline3058.06*78
33Seraphim Solar SystemSRP-265-5MAMonocrystalline2658.05*78
34Seraphim Solar SystemSRP-305-6PAPolycrystalline3058.02*76
35Seraphim Solar SystemSRP-230-6PCPolycrystalline2307.99*75
36Seraphim Solar SystemSRP-265-6MBMonocrystalline2657.99*75
37Seraphim Solar SystemSRP-195-5MBMonocrystalline1957.96*74
38Seraphim Solar SystemSRP-250-6PBPolycrystalline2507.95*73
39Seraphim Solar SystemSRP-300-6MAMonocrystalline3007.94*72
40Seraphim Solar SystemSRP-225-6PCPolycrystalline2257.88*70
41Seraphim Solar SystemSRP-300-6PAPolycrystalline3007.88*70
42Seraphim Solar SystemSRP-245-6PBPolycrystalline2457.80*66
43Seraphim Solar SystemSRP-295-6MAMonocrystalline2957.79*65
44Seraphim Solar SystemSRP-295-6PAPolycrystalline2957.75*63
45Seraphim Solar SystemSRP-290-6PAPolycrystalline2907.72*61
46Seraphim Solar SystemSRP-190-5MBMonocrystalline1907.67*58
47Seraphim Solar SystemSRP-220-6PCPolycrystalline2207.67*58
48Seraphim Solar SystemSRP-290-6MAMonocrystalline2907.67*58
49Seraphim Solar SystemSRP-285-6PAPolycrystalline2857.59*53
50Seraphim Solar SystemSRP-240-6PBPolycrystalline2407.59*54
51Seraphim Solar SystemSRP-185-5MBMonocrystalline1857.45*45
52Seraphim Solar SystemSRP-280-6PAPolycrystalline2807.45*45
53Seraphim Solar SystemSRP-235-6PBPolycrystalline2357.43*44
54Seraphim Solar SystemSRP-275-6PAPolycrystalline2757.31*36
55Seraphim Solar SystemSRP-230-6PBPolycrystalline2307.27*34
56Seraphim Solar SystemSRP-180-5MBMonocrystalline1807.26*34

* Modules denoted with an “*” use estimated values for one or more characteristics. Manufacturers can contact us to provide the missing data for these PV modules.

NOTE: PSI Ratings are based on publicly available data, and are subject to change as additional data and proprietary analyses become available for long-term performance.