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 Eclipsall Energy

Here are the PSI Ratings for modules from Eclipsall 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
1Eclipsall EnergyNRG72-320MMonocrystalline3208.15*82
2Eclipsall EnergyNRG72-310PPolycrystalline3108.00*75
3Eclipsall EnergyNRG72-315MMonocrystalline3158.00*75
4Eclipsall EnergyNRG60-260MMonocrystalline2607.92*71
5Eclipsall EnergyNRG72-310MMonocrystalline3107.91*71
6Eclipsall EnergyNRG72-305PPolycrystalline3057.87*69
7Eclipsall EnergyNRG60-255PPolycrystalline2557.84*67
8Eclipsall EnergyNRG60-255MMonocrystalline2557.80*65
9Eclipsall EnergyNRG72-305MMonocrystalline3057.78*64
10Eclipsall EnergyNRG72-300PPolycrystalline3007.74*62
11Eclipsall EnergyNRG60-250PPolycrystalline2507.69*60
12Eclipsall EnergyNRG72-300MMonocrystalline3007.66*57
13Eclipsall EnergyNRG60-250MMonocrystalline2507.64*56
14Eclipsall EnergyNRG72-295PPolycrystalline2957.61*55
15Eclipsall EnergyNRG60-250M-BKMonocrystalline2507.55*51
16Eclipsall EnergyNRG60-245PPolycrystalline2457.53*49
17Eclipsall EnergyNRG72-295MMonocrystalline2957.53*49
18Eclipsall EnergyNRG60-245MMonocrystalline2457.50*48
19Eclipsall EnergyNRG72-290PPolycrystalline2907.49*47
20Eclipsall EnergyNRG60-245M-BKMonocrystalline2457.42*42
21Eclipsall EnergyNRG72-290MMonocrystalline2907.39*41
22Eclipsall EnergyNRG60-240PPolycrystalline2407.38*40
23Eclipsall EnergyNRG60-240MMonocrystalline2407.35*39
24Eclipsall EnergyNRG60-240M-BKMonocrystalline2407.27*34
25Eclipsall EnergyNRG60-235M-BKMonocrystalline2357.09*25
26Eclipsall EnergyNRG60-230M-BKMonocrystalline2306.94*19

* 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.