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 Neo Solar Power

Here are the PSI Ratings for modules from Neo Solar Power, 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
1Neo Solar PowerD6M335B4AMonocrystalline3358.79*95
2Neo Solar PowerD6M280B3AMonocrystalline2808.79*95
3Neo Solar PowerD6P330B4APolycrystalline3308.78*95
4Neo Solar PowerD6M330B4AMonocrystalline3308.65*93
5Neo Solar PowerD6P325B4APolycrystalline3258.64*93
6Neo Solar PowerD6M275B3AMonocrystalline2758.63*93
7Neo Solar PowerD6P270B3APolycrystalline2708.57*92
8Neo Solar PowerD6P320B4APolycrystalline3208.51*91
9Neo Solar PowerD6M325B4AMonocrystalline3258.51*91
10Neo Solar PowerD6M270B3AMonocrystalline2708.47*90
11Neo Solar PowerD6P265B3APolycrystalline2658.40*89
12Neo Solar PowerD6M320B4AMonocrystalline3208.39*89
13Neo Solar PowerD6P315B4APolycrystalline3158.37*88
14Neo Solar PowerD6M265B3AMonocrystalline2658.32*87
15Neo Solar PowerD6M315B4AMonocrystalline3158.26*85
16Neo Solar PowerD6P260B3APolycrystalline2608.25*85
17Neo Solar PowerD6P310B4APolycrystalline3108.24*85
18Neo Solar Power7E00-6A265Monocrystalline2658.22*84
19Neo Solar Power7E00-6A265-BMonocrystalline2658.22*84
20Neo Solar PowerD6M260B3AMonocrystalline2608.16*82
21Neo Solar PowerD6P305B4APolycrystalline3058.12*80
22Neo Solar PowerD6M310B4AMonocrystalline3108.12*80
23Neo Solar PowerD6P255B3APolycrystalline2558.09*79
24Neo Solar Power7C00-6C275Polycrystalline2758.09*79
25Neo Solar Power7C00-6C275-BPolycrystalline2758.09*79
26Neo Solar Power7E00-6A260-BMonocrystalline2608.07*79
27Neo Solar Power7E00-6A260Monocrystalline2608.07*79
28Neo Solar Power7E00-6C305Monocrystalline3057.99*75
29Neo Solar Power7E00-6C305-BMonocrystalline3057.99*75
30Neo Solar PowerD6P300B4APolycrystalline3007.97*74
31Neo Solar Power7E00-6A255Monocrystalline2557.95*73
32Neo Solar Power7E00-6A255-BMonocrystalline2557.95*73
33Neo Solar Power7E00-6C300-BMonocrystalline3007.86*69
34Neo Solar Power7E00-6C300Monocrystalline3007.86*69
35Neo Solar PowerD6M255B3AMonocrystalline2557.82*66
36Neo Solar PowerD6M305B4AMonocrystalline3057.82*67
37Neo Solar Power7E00-6A250Monocrystalline2507.79*65
38Neo Solar Power7E00-6A250-BMonocrystalline2507.79*65
39Neo Solar PowerD6P245A3FPolycrystalline2457.77*64
40Neo Solar PowerD6P250B3APolycrystalline2507.74*63
41Neo Solar Power7E00-6C295Monocrystalline2957.73*62
42Neo Solar Power7E00-6C295-BMonocrystalline2957.73*62
43Neo Solar PowerD6M300B4AMonocrystalline3007.70*60
44Neo Solar Power7C00-6C295-BPolycrystalline2957.70*60
45Neo Solar Power7C00-6C295Polycrystalline2957.70*60
46Neo Solar PowerD6M250B3AMonocrystalline2507.65*57
47Neo Solar Power7E00-6A245Monocrystalline2457.64*56
48Neo Solar Power7E00-6A245-BMonocrystalline2457.64*56
49Neo Solar Power7C00-6A245-BPolycrystalline2457.64*56
50Neo Solar Power7C00-6A240Polycrystalline2407.64*56
51Neo Solar Power7C00-6A240-BPolycrystalline2407.64*56
52Neo Solar Power7C00-6A245Polycrystalline2457.64*56
53Neo Solar PowerD6P220A5FPolycrystalline2207.61*54
54Neo Solar PowerD6P240A3FPolycrystalline2407.61*55
55Neo Solar PowerD6P245B3APolycrystalline2457.59*53
56Neo Solar Power7E00-6C290-BMonocrystalline2907.59*54
57Neo Solar Power7E00-6C290Monocrystalline2907.59*54
58Neo Solar PowerD6M295B4AMonocrystalline2957.58*53
59Neo Solar PowerD6Q295B4APolycrystalline2957.57*52
60Neo Solar Power7C00-6C290-BPolycrystalline2907.56*52
61Neo Solar Power7C00-6C290Polycrystalline2907.56*52
62Neo Solar PowerD6P295B4APolycrystalline2957.52*49
63Neo Solar PowerD6M245B3AMonocrystalline2457.51*49
64Neo Solar PowerD6P290A4FPolycrystalline2907.50*48
65Neo Solar Power7E00-6A240Monocrystalline2407.49*47
66Neo Solar Power7E00-6A240-BMonocrystalline2407.49*47
67Neo Solar Power7C00-6A235-BPolycrystalline2357.48*47
68Neo Solar Power7C00-6A235Polycrystalline2357.48*47
69Neo Solar Power7E00-6C285Monocrystalline2857.47*46
70Neo Solar Power7E00-6C285-BMonocrystalline2857.47*46
71Neo Solar PowerD6Q290B4APolycrystalline2907.45*45
72Neo Solar PowerD6M290B4AMonocrystalline2907.44*44
73Neo Solar PowerD6P215A5FPolycrystalline2157.44*44
74Neo Solar Power7C00-6C285Polycrystalline2857.44*44
75Neo Solar Power7C00-6C285-BPolycrystalline2857.44*44
76Neo Solar PowerD6P240B3APolycrystalline2407.43*43
77Neo Solar PowerD6P210A5FPolycrystalline2107.43*44
78Neo Solar PowerD6P235A3FPolycrystalline2357.39*41
79Neo Solar PowerD6P290B4APolycrystalline2907.39*41
80Neo Solar PowerD6P285A4FPolycrystalline2857.37*40
81Neo Solar PowerD6M240B3AMonocrystalline2407.35*39
82Neo Solar Power7C00-6A230Polycrystalline2307.33*37
83Neo Solar Power7C00-6A230-BPolycrystalline2307.33*37
84Neo Solar Power7E00-6A235Monocrystalline2357.33*37
85Neo Solar Power7E00-6A235-BMonocrystalline2357.33*37
86Neo Solar PowerD6Q285B4APolycrystalline2857.32*37
87Neo Solar Power7C00-6C280-BPolycrystalline2807.31*36
88Neo Solar Power7C00-6C280Polycrystalline2807.31*36
89Neo Solar PowerD6M285B4AMonocrystalline2857.30*36
90Neo Solar PowerD6P205A5FPolycrystalline2057.26*34
91Neo Solar PowerD6P235B3APolycrystalline2357.26*33
92Neo Solar PowerD6P285B4APolycrystalline2857.25*33
93Neo Solar PowerD6P280A4FPolycrystalline2807.24*33
94Neo Solar PowerD6P140A1FPolycrystalline1407.24*33
95Neo Solar PowerD6P230A3FPolycrystalline2307.23*32
96Neo Solar PowerD6Q280B4APolycrystalline2807.20*30
97Neo Solar PowerD6M235B3AMonocrystalline2357.20*31
98Neo Solar Power7C00-6A225Polycrystalline2257.17*29
99Neo Solar Power7C00-6A225-BPolycrystalline2257.17*29
100Neo Solar PowerD6P280B4APolycrystalline2807.12*27
101Neo Solar PowerD6P230B3APolycrystalline2307.11*26
102Neo Solar PowerD6P275A4FPolycrystalline2757.11*26
103Neo Solar PowerD6P225A3FPolycrystalline2257.09*25
104Neo Solar PowerD6P200A5FPolycrystalline2007.08*25
105Neo Solar PowerD6Q275B4APolycrystalline2757.08*25
106Neo Solar PowerD6P275B4APolycrystalline2756.99*21
107Neo Solar PowerD6P270A4FPolycrystalline2706.99*21
108Neo Solar PowerD6P135A1FPolycrystalline1356.99*21
109Neo Solar PowerD6P220A3FMonocrystalline2206.94*19
110Neo Solar PowerD6P195A5FPolycrystalline1956.91*18
111Neo Solar PowerD6P265A4FPolycrystalline2656.88*17
112Neo Solar PowerD6P215A3FMonocrystalline2156.78*13
113Neo Solar PowerD6P130A1FPolycrystalline1306.76*13
114Neo Solar PowerD6P260A4FPolycrystalline2606.75*13
115Neo Solar PowerD6P190A5FPolycrystalline1906.74*12
116Neo Solar PowerD6P125A1FPolycrystalline1256.45*7
117Neo Solar PowerD6P120A1FPolycrystalline1206.19*4

* 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.