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 Worldwide Energy & Mfg USA

Here are the PSI Ratings for modules from Worldwide Energy & Mfg USA, 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
1Worldwide Energy & Mfg USAAS-6P-315WPolycrystalline31510.23*99
2Worldwide Energy & Mfg USAAS-6P-310WPolycrystalline31010.06*99
3Worldwide Energy & Mfg USAAS-6P-305WPolycrystalline3059.91*99
4Worldwide Energy & Mfg USAAS-6P-300WPolycrystalline3009.74*99
5Worldwide Energy & Mfg USAAS-6P-295WPolycrystalline2959.58*98
6Worldwide Energy & Mfg USAAS-6P-290WPolycrystalline2909.42*98
7Worldwide Energy & Mfg USAAS-6M30-265WMonocrystalline2658.32*87
8Worldwide Energy & Mfg USAAS-6M30-260WMonocrystalline2608.16*82
9Worldwide Energy & Mfg USAAS-6M30-270WMonocrystalline2708.14*81
10Worldwide Energy & Mfg USAAS-6M-320WMonocrystalline3208.10*80
11Worldwide Energy & Mfg USAAS-6M27-240WMonocrystalline2408.03*77
12Worldwide Energy & Mfg USAAS-6P30-260WPolycrystalline2608.02*77
13Worldwide Energy & Mfg USAAS-6M30-255WMonocrystalline2558.00*75
14Worldwide Energy & Mfg USAAS-6M-315WMonocrystalline3157.98*74
15Worldwide Energy & Mfg USAAS-6M-250WMonocrystalline2507.90*71
16Worldwide Energy & Mfg USAAS-6M30-250WMonocrystalline2507.90*71
17Worldwide Energy & Mfg USAAS-6P30-255WPolycrystalline2557.87*69
18Worldwide Energy & Mfg USAAS-6M-310WMonocrystalline3107.85*68
19Worldwide Energy & Mfg USAAS-6M-245WMonocrystalline2457.74*62
20Worldwide Energy & Mfg USAAS-6M-305WMonocrystalline3057.72*61
21Worldwide Energy & Mfg USAAS-6P30-250WPolycrystalline2507.71*60
22Worldwide Energy & Mfg USAAS-6M30-245WMonocrystalline2457.69*59
23Worldwide Energy & Mfg USAAS-6M-300WMonocrystalline3007.66*58
24Worldwide Energy & Mfg USAAS-6M27-B-225WMonocrystalline2257.61*55
25Worldwide Energy & Mfg USAAS-6M-285WMonocrystalline2857.57*52
26Worldwide Energy & Mfg USAAS-6P30-245WPolycrystalline2457.56*51
27Worldwide Energy & Mfg USAAS-6M27-225WMonocrystalline2257.56*51
28Worldwide Energy & Mfg USAAS-6M-295WMonocrystalline2957.53*49
29Worldwide Energy & Mfg USAAS-6M27-B-220WMonocrystalline2207.45*45
30Worldwide Energy & Mfg USAAS-6M-B-295WMonocrystalline2957.45*45
31Worldwide Energy & Mfg USAAS-6M30-240WMonocrystalline2407.44*44
32Worldwide Energy & Mfg USAAS-5M-190WMonocrystalline1907.44*44
33Worldwide Energy & Mfg USAAS-6M24-190WMonocrystalline1907.43*43
34Worldwide Energy & Mfg USAAS-6M30-B-245WMonocrystalline2457.43*43
35Worldwide Energy & Mfg USAAS-6M30-235WMonocrystalline2357.43*43
36Worldwide Energy & Mfg USAAS-6M-280WMonocrystalline2807.43*44
37Worldwide Energy & Mfg USAAS-6M-290WMonocrystalline2907.41*42
38Worldwide Energy & Mfg USAAS-6M27-220WMonocrystalline2207.39*41
39Worldwide Energy & Mfg USAAS-6P30-240WPolycrystalline2407.38*40
40Worldwide Energy & Mfg USAAS-5M-185WMonocrystalline1857.37*40
41Worldwide Energy & Mfg USAAS-6P24-190WPolycrystalline1907.34*38
42Worldwide Energy & Mfg USAAS-5M36-185WMonocrystalline1857.34*38
43Worldwide Energy & Mfg USAAS-6P-285WPolycrystalline2857.33*37
44Worldwide Energy & Mfg USAAS-6M-B-290WMonocrystalline2907.33*38
45Worldwide Energy & Mfg USAAS-6M-275WMonocrystalline2757.31*36
46Worldwide Energy & Mfg USAAS-6M24-185WMonocrystalline1857.30*36
47Worldwide Energy & Mfg USAAS-6M30-B-240WMonocrystalline2407.28*35
48Worldwide Energy & Mfg USAAS-6M27-B-215WMonocrystalline2157.27*34
49Worldwide Energy & Mfg USAAS-6M30-225WMonocrystalline2257.24*33
50Worldwide Energy & Mfg USAAS-5M36-180WMonocrystalline1807.22*31
51Worldwide Energy & Mfg USAAS-6M27-215WMonocrystalline2157.22*32
52Worldwide Energy & Mfg USAAS-5M-180WMonocrystalline1807.21*31
53Worldwide Energy & Mfg USAAS-6P-280WPolycrystalline2807.21*31
54Worldwide Energy & Mfg USAAS-6M-B-285WMonocrystalline2857.20*30
55Worldwide Energy & Mfg USAAS-6M-270WMonocrystalline2707.18*29
56Worldwide Energy & Mfg USAAS-6P30-230WPolycrystalline2307.15*27
57Worldwide Energy & Mfg USAAS-6M30-230WMonocrystalline2307.13*27
58Worldwide Energy & Mfg USAAS-6P24-185WPolycrystalline1857.13*27
59Worldwide Energy & Mfg USAAS-6M30-B-235WMonocrystalline2357.11*26
60Worldwide Energy & Mfg USAAS-6M24-180WMonocrystalline1807.09*25
61Worldwide Energy & Mfg USAAS-6M-B-280WMonocrystalline2807.08*24
62Worldwide Energy & Mfg USAAS-6P-275WPolycrystalline2757.07*24
63Worldwide Energy & Mfg USAAS-6M-265WMonocrystalline2657.04*23
64Worldwide Energy & Mfg USAAS-5M36-175WMonocrystalline1757.03*22
65Worldwide Energy & Mfg USAAS-5M-175WMonocrystalline1757.02*22
66Worldwide Energy & Mfg USAAS-6P30-225WPolycrystalline2256.98*21
67Worldwide Energy & Mfg USAAS-6P24-180WPolycrystalline1806.93*18
68Worldwide Energy & Mfg USAAS-6M24-175WMonocrystalline1756.91*18
69Worldwide Energy & Mfg USAAS-5M36-170WMonocrystalline1706.84*16
70Worldwide Energy & Mfg USAAS-6M30-220WMonocrystalline2206.83*15
71Worldwide Energy & Mfg USAAS-6P30-220WPolycrystalline2206.82*15
72Worldwide Energy & Mfg USAAS-5M-170WMonocrystalline1706.81*14
73Worldwide Energy & Mfg USAAS-6P24-175WPolycrystalline1756.75*13
74Worldwide Energy & Mfg USAAS-6M24-170WMonocrystalline1706.70*12
75Worldwide Energy & Mfg USAAS-5M36-165WMonocrystalline1656.65*10
76Worldwide Energy & Mfg USAAS-6P24-170WPolycrystalline1706.56*9

* 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.