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 Integrated Power

Here are the PSI Ratings for modules from Integrated 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
1Integrated PowerIPC190P01-USPolycrystalline1908.40*89
2Integrated PowerIPC190P01Polycrystalline1908.40*89
3Integrated PowerIPC185P01-USPolycrystalline1858.19*83
4Integrated PowerIPC185P01Polycrystalline1858.19*83
5Integrated PowerIPC185M01Monocrystalline1857.98*74
6Integrated PowerIPC185M01-USMonocrystalline1857.98*74
7Integrated PowerIPC280P01Polycrystalline2807.96*73
8Integrated PowerIPC280P01-USPolycrystalline2807.96*73
9Integrated PowerIPC275P01Polycrystalline2757.80*65
10Integrated PowerIPC275P01-USPolycrystalline2757.80*65
11Integrated PowerIPC180P01Polycrystalline1807.79*65
12Integrated PowerIPC180P01-USPolycrystalline1807.79*65
13Integrated PowerIPC180M01-USMonocrystalline1807.77*64
14Integrated PowerIPC180M01Monocrystalline1807.77*64
15Integrated PowerIPC225P01Polycrystalline2257.75*63
16Integrated PowerIPC225P01-USPolycrystalline2257.75*63
17Integrated PowerIPC175P01-USPolycrystalline1757.74*62
18Integrated PowerIPC175P01Polycrystalline1757.74*62
19Integrated PowerIPC270P01Polycrystalline2707.67*58
20Integrated PowerIPC270P01-USPolycrystalline2707.67*58
21Integrated PowerIPC220P01-USPolycrystalline2207.58*53
22Integrated PowerIPC220P01Polycrystalline2207.58*53
23Integrated PowerIPC175M01Monocrystalline1757.55*51
24Integrated PowerIPC175M01-USMonocrystalline1757.55*51
25Integrated PowerIPC265P01-USPolycrystalline2657.53*49
26Integrated PowerIPC265P01Polycrystalline2657.53*49
27Integrated PowerIPC215P01-USPolycrystalline2157.42*42
28Integrated PowerIPC215P01Polycrystalline2157.42*42
29Integrated PowerIPC260P01Polycrystalline2607.39*41
30Integrated PowerIPC260P01-USPolycrystalline2607.39*41
31Integrated PowerIPC255P01Polycrystalline2557.25*33
32Integrated PowerIPC255P01-USPolycrystalline2557.25*33
33Integrated PowerIPC210P01-USPolycrystalline2107.25*33
34Integrated PowerIPC210P01Polycrystalline2107.25*33
35Integrated PowerIPC250P01-USPolycrystalline2507.10*26
36Integrated PowerIPC250P01Polycrystalline2507.10*26
37Integrated PowerIPC205P01-USPolycrystalline2057.07*24
38Integrated PowerIPC205P01Polycrystalline2057.07*24
39Integrated PowerIPC245P01-USPolycrystalline2456.96*19
40Integrated PowerIPC245P01Polycrystalline2456.96*19
41Integrated PowerIPC200P01Polycrystalline2006.89*17
42Integrated PowerIPC200P01-USPolycrystalline2006.89*17
43Integrated PowerIPC240P01Polycrystalline2406.83*15
44Integrated PowerIPC240P01-USPolycrystalline2406.83*15
45Integrated PowerIPC235P01-USPolycrystalline2356.75*13
46Integrated PowerIPC235P01Polycrystalline2356.75*13
47Integrated PowerIPC230P01-USPolycrystalline2306.60*9
48Integrated PowerIPC230P01Polycrystalline2306.60*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.