Principal Solar Institute

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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 Yingli Energy (China)

Here are the PSI Ratings for modules from Yingli Energy (China), 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
1Yingli Energy (China)YL270C-30bMonocrystalline2708.67*94
2Yingli Energy (China)YL265C-30bMonocrystalline2658.53*92
3Yingli Energy (China)YL260C-30bMonocrystalline2608.44*90
4Yingli Energy (China)YL265P-29bPolycrystalline2658.33*87
5Yingli Energy (China)YL315P-35bPolycrystalline3158.33*87
6Yingli Energy (China)YL255C-30bMonocrystalline2558.28*86
7Yingli Energy (China)YL260P-29bPolycrystalline2608.18*83
8Yingli Energy (China)YL310P-35bPolycrystalline3108.15*82
9Yingli Energy (China)YL250C-30bMonocrystalline2508.12*81
10Yingli Energy (China)YL255P-29bPolycrystalline2558.04*77
11Yingli Energy (China)YL305P-35bPolycrystalline3058.03*77
12Yingli Energy (China)YL250P-29bPolycrystalline2507.91*71
13Yingli Energy (China)YL300P-35bPolycrystalline3007.89*70
14Yingli Energy (China)YL295P-35bPolycrystalline2957.76*63
15Yingli Energy (China)YL245P-29bPolycrystalline2457.73*62
16Yingli Energy (China)YL290P-35bPolycrystalline2907.63*56
17Yingli Energy (China)YL240P-29bPolycrystalline2407.58*53
18Yingli Energy (China)YL285P-35bPolycrystalline2857.49*47
19Yingli Energy (China)YL185P-23bPolycrystalline1857.45*45
20Yingli Energy (China)YL235P-29bPolycrystalline2357.42*43
21Yingli Energy (China)YL280P-35bPolycrystalline2807.39*41
22Yingli Energy (China)YL180P-23bPolycrystalline1807.27*34
23Yingli Energy (China)YL275P-35bPolycrystalline2757.26*34
24Yingli Energy (China)YL210P-26bPolycrystalline2107.25*33
25Yingli Energy (China)YL255P-32bPolycrystalline2557.22*31
26Yingli Energy (China)YL270P-35bPolycrystalline2707.12*27
27Yingli Energy (China)YL230P-29bPolycrystalline2307.11*26
28Yingli Energy (China)YL205P-26bPolycrystalline2057.07*24
29Yingli Energy (China)YL250P-32bPolycrystalline2507.07*24
30Yingli Energy (China)YL225P-29bPolycrystalline2257.06*24
31Yingli Energy (China)YL175P-23bPolycrystalline1757.03*23
32Yingli Energy (China)YL265P-35bPolycrystalline2656.98*20
33Yingli Energy (China)YL245P-32bPolycrystalline2456.92*18
34Yingli Energy (China)YL200P-26bPolycrystalline2006.90*17
35Yingli Energy (China)YL220P-29bPolycrystalline2206.90*17
36Yingli Energy (China)YL260P-35bPolycrystalline2606.83*15
37Yingli Energy (China)YL170P-23bPolycrystalline1706.83*15
38Yingli Energy (China)YL240P-32bPolycrystalline2406.79*14
39Yingli Energy (China)YL195P-26bPolycrystalline1956.73*12

* 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.