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 Suntop Solar Energy

Here are the PSI Ratings for modules from Suntop Solar Energy, 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
1Suntop Solar EnergyTOP-H-240S6AMonocrystalline2407.40*41
2Suntop Solar EnergyTOP-H-235M6APolycrystalline2357.38*41
3Suntop Solar EnergyTOP-S-195S6AMonocrystalline1957.34*38
4Suntop Solar EnergyTOP-H-235S6AMonocrystalline2357.31*36
5Suntop Solar EnergyTOP-H-230M6APolycrystalline2307.27*34
6Suntop Solar EnergyTOP-S-240S6AMonocrystalline2407.24*33
7Suntop Solar EnergyTOP-S-235M6APolycrystalline2357.23*32
8Suntop Solar EnergyTOP-S-210M6APolycrystalline2107.17*29
9Suntop Solar EnergyTOP-S-235S6AMonocrystalline2357.16*28
10Suntop Solar EnergyTOP-S-190S6AMonocrystalline1907.16*28
11Suntop Solar EnergyTOP-H-230S6AMonocrystalline2307.14*27
12Suntop Solar EnergyTOP-S-145S6AMonocrystalline1457.14*27
13Suntop Solar EnergyTOP-S-190M6APolycrystalline1907.14*27
14Suntop Solar EnergyTOP-S-230M6APolycrystalline2307.12*26
15Suntop Solar EnergyTOP-H-225M6APolycrystalline2257.12*26
16Suntop Solar EnergyTOP-S-185M6APolycrystalline1857.03*22
17Suntop Solar EnergyTOP-S-140M6APolycrystalline1407.02*22
18Suntop Solar EnergyTOP-S-205M6APolycrystalline2057.00*22
19Suntop Solar EnergyTOP-S-230S6AMonocrystalline2306.99*21
20Suntop Solar EnergyTOP-S-225M6APolycrystalline2256.97*20
21Suntop Solar EnergyTOP-H-225S6AMonocrystalline2256.96*19
22Suntop Solar EnergyTOP-H-220M6APolycrystalline2206.93*18
23Suntop Solar EnergyTOP-S-185S6AMonocrystalline1856.92*18
24Suntop Solar EnergyTOP-S-180M6APolycrystalline1806.91*18
25Suntop Solar EnergyTOP-S-140S6AMonocrystalline1406.89*17
26Suntop Solar EnergyTOP-H-220S6AMonocrystalline2206.87*17
27Suntop Solar EnergyTOP-S-200M6APolycrystalline2006.83*16
28Suntop Solar EnergyTOP-H-215M6APolycrystalline2156.83*15
29Suntop Solar EnergyTOP-S-225S6AMonocrystalline2256.82*15
30Suntop Solar EnergyTOP-S-220M6APolycrystalline2206.79*14
31Suntop Solar EnergyTOP-S-135M6APolycrystalline1356.78*14
32Suntop Solar EnergyTOP-S-175M6APolycrystalline1756.74*12
33Suntop Solar EnergyTOP-S-220S6AMonocrystalline2206.73*12
34Suntop Solar EnergyTOP-S-215M6APolycrystalline2156.69*11
35Suntop Solar EnergyTOP-S-195M6APolycrystalline1956.65*10
36Suntop Solar EnergyTOP-S-135S6AMonocrystalline1356.64*10
37Suntop Solar EnergyTOP-S-170M6APolycrystalline1706.55*8
38Suntop Solar EnergyTOP-S-130M6APolycrystalline1306.52*8
39Suntop Solar EnergyTOP-S-125M6APolycrystalline1256.43*6

* 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.