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 Zhongli Talesun Solar

Here are the PSI Ratings for modules from Zhongli Talesun Solar, 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
1Zhongli Talesun SolarTP672M-320Monocrystalline3208.43*90
2Zhongli Talesun SolarTP660M-260Monocrystalline2608.32*87
3Zhongli Talesun SolarTP672M-315Monocrystalline3158.30*86
4Zhongli Talesun SolarTP660M-260BMonocrystalline2608.26*86
5Zhongli Talesun SolarTP672M-310BMonocrystalline3108.24*85
6Zhongli Talesun SolarTP660P-260Polycrystalline2608.21*84
7Zhongli Talesun SolarTP672M-310Monocrystalline3108.20*83
8Zhongli Talesun SolarTP672P-310Polycrystalline3108.18*83
9Zhongli Talesun SolarTP660M-255Monocrystalline2558.17*82
10Zhongli Talesun SolarTP660M-255BMonocrystalline2558.11*80
11Zhongli Talesun SolarTP672M-305BMonocrystalline3058.11*80
12Zhongli Talesun SolarTP672M-305Monocrystalline3058.08*79
13Zhongli Talesun SolarTP660P-255Polycrystalline2558.08*79
14Zhongli Talesun SolarTP572M-200Monocrystalline2008.08*79
15Zhongli Talesun SolarTP672P-305Polycrystalline3058.06*78
16Zhongli Talesun SolarTP660P-255BPolycrystalline2558.04*77
17Zhongli Talesun SolarTP672M-300BMonocrystalline3007.98*74
18Zhongli Talesun SolarTAC208/240Monocrystalline2507.96*73
19Zhongli Talesun SolarTP660M-250Monocrystalline2507.96*73
20Zhongli Talesun SolarTP672M-300Monocrystalline3007.95*73
21Zhongli Talesun SolarTP660M-250BMonocrystalline2507.95*73
22Zhongli Talesun SolarTP660P-250Polycrystalline2507.92*71
23Zhongli Talesun SolarTP672P-300Polycrystalline3007.91*71
24Zhongli Talesun SolarTP672P-300BPolycrystalline3007.91*71
25Zhongli Talesun SolarTP660P-250BPolycrystalline2507.89*70
26Zhongli Talesun SolarTP572M-195Monocrystalline1957.89*70
27Zhongli Talesun SolarTP672M-295BMonocrystalline2957.84*68
28Zhongli Talesun SolarTP660M-245Monocrystalline2457.81*66
29Zhongli Talesun SolarTP672M-295Monocrystalline2957.81*66
30Zhongli Talesun SolarTP672P-295BPolycrystalline2957.79*65
31Zhongli Talesun SolarTP660M-245BMonocrystalline2457.79*65
32Zhongli Talesun SolarTP672P-295Polycrystalline2957.77*64
33Zhongli Talesun SolarTP660P-245Polycrystalline2457.76*63
34Zhongli Talesun SolarTP672M-290BMonocrystalline2907.72*61
35Zhongli Talesun SolarTP660P-245BPolycrystalline2457.72*61
36Zhongli Talesun SolarTP572M-190Monocrystalline1907.69*59
37Zhongli Talesun SolarTP672M-290Monocrystalline2907.69*59
38Zhongli Talesun SolarTP672P-290BPolycrystalline2907.66*57
39Zhongli Talesun SolarTP660M-240BMonocrystalline2407.64*56
40Zhongli Talesun SolarTP660M-240Monocrystalline2407.64*56
41Zhongli Talesun SolarTP672P-290Polycrystalline2907.64*57
42Zhongli Talesun SolarTP660P-240Polycrystalline2407.61*54
43Zhongli Talesun SolarTP672M-285BMonocrystalline2857.58*53
44Zhongli Talesun SolarTP660P-240BPolycrystalline2407.57*52
45Zhongli Talesun SolarTP672M-285Monocrystalline2857.55*51
46Zhongli Talesun SolarTP672P-285BPolycrystalline2857.52*49
47Zhongli Talesun SolarTP672P-285Polycrystalline2857.51*48
48Zhongli Talesun SolarTP572M-185Monocrystalline1857.48*47
49Zhongli Talesun SolarTP660M-235Monocrystalline2357.48*47
50Zhongli Talesun SolarTP660P-235Polycrystalline2357.45*45
51Zhongli Talesun SolarTP672P-280Polycrystalline2807.39*41
52Zhongli Talesun SolarTP660M-230Monocrystalline2307.35*38
53Zhongli Talesun SolarTP660P-230Polycrystalline2307.29*35
54Zhongli Talesun SolarTP572M-180Monocrystalline1807.25*33
55Zhongli Talesun SolarTP660M-225Monocrystalline2257.18*29
56Zhongli Talesun SolarTP660P-225Polycrystalline2257.13*27
57Zhongli Talesun SolarTP572M-175Monocrystalline1757.05*24
58Zhongli Talesun SolarTP660M-220Monocrystalline2207.02*22
59Zhongli Talesun SolarTP660P-220Polycrystalline2206.97*20

* 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.