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 SUNGEN International

Here are the PSI Ratings for modules from SUNGEN International, 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
1SUNGEN InternationalSGM-205DMonocrystalline2058.44*90
2SUNGEN InternationalSGM-260DMonocrystalline2608.38*89
3SUNGEN InternationalSGM-200DMonocrystalline2008.23*84
4SUNGEN InternationalSGM-255DMonocrystalline2558.22*84
5SUNGEN InternationalSGM-255PPolycrystalline2558.16*82
6SUNGEN InternationalSGM-250DMonocrystalline2508.06*78
7SUNGEN InternationalSGM-195DMonocrystalline1958.03*77
8SUNGEN InternationalSGM-250PPolycrystalline2508.00*76
9SUNGEN InternationalSGM-245DMonocrystalline2457.90*71
10SUNGEN InternationalSGM-245PPolycrystalline2457.84*68
11SUNGEN InternationalSGM-190DMonocrystalline1907.82*67
12SUNGEN InternationalSGM-240DMonocrystalline2407.73*62
13SUNGEN InternationalSGM-240PPolycrystalline2407.70*60
14SUNGEN InternationalSGM-235DMonocrystalline2357.58*53
15SUNGEN InternationalSGM-185DMonocrystalline1857.54*50
16SUNGEN InternationalSGM-235PPolycrystalline2357.54*50
17SUNGEN InternationalSGM-230DMonocrystalline2307.41*42
18SUNGEN InternationalSGM-285PPolycrystalline2857.39*41
19SUNGEN InternationalSGM-230PPolycrystalline2307.38*41
20SUNGEN InternationalSGM-180DMonocrystalline1807.34*38
21SUNGEN InternationalSGM-280PPolycrystalline2807.26*34
22SUNGEN InternationalSGM-225DMonocrystalline2257.25*33
23SUNGEN InternationalSGM-225PPolycrystalline2257.21*31
24SUNGEN InternationalSGM-275PPolycrystalline2757.14*27
25SUNGEN InternationalSGM-270PPolycrystalline2707.00*21
26SUNGEN InternationalSGM-175DMonocrystalline1756.97*20
27SUNGEN InternationalSGM-265PPolycrystalline2656.88*17
28SUNGEN InternationalSGM-220PPolycrystalline2206.79*14
29SUNGEN InternationalSGM-260PPolycrystalline2606.76*13
30SUNGEN InternationalSGM-170DMonocrystalline1706.76*13
31SUNGEN InternationalSGM-215PPolycrystalline2156.60*9
32SUNGEN InternationalSGM-220DMonocrystalline2206.53*8
33SUNGEN InternationalSGM-165DMonocrystalline1656.52*8
34SUNGEN InternationalSGM-210PPolycrystalline2106.45*7
35SUNGEN InternationalSGM-215DMonocrystalline2156.34*5
36SUNGEN InternationalSGM-205PPolycrystalline2056.30*5
37SUNGEN InternationalSGM-210DMonocrystalline2106.21*4
38SUNGEN InternationalSGM-200PPolycrystalline2006.14*4
39SUNGEN InternationalSG-HN110-GGThin Film1103.87*1
40SUNGEN InternationalSG-HN105-GGThin Film1053.69*1
41SUNGEN InternationalSG-HN100-GGThin Film1003.52*0
42SUNGEN InternationalSG-HN95-GGThin Film953.38*0
43SUNGEN InternationalSG-HN90-GGThin Film903.25*0

* 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.