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 Econess Energy

Here are the PSI Ratings for modules from Econess 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
1Econess EnergyEN125M-96-265Monocrystalline2658.09*79
2Econess EnergyEN125M-72-200Monocrystalline2008.02*77
3Econess EnergyEN156P-72-300Polycrystalline3007.98*74
4Econess EnergyEN125M-96-260Monocrystalline2607.93*72
5Econess EnergyEN156M-72-300Monocrystalline3007.90*70
6Econess EnergyEN156M-60-250Monocrystalline2507.89*70
7Econess EnergyEN156P-60-250Polycrystalline2507.89*70
8Econess EnergyEN156P-72-295Polycrystalline2957.85*68
9Econess EnergyEN125M-72-195Monocrystalline1957.83*67
10Econess EnergyEN125M-96-255Monocrystalline2557.78*64
11Econess EnergyEN156M-72-295Monocrystalline2957.77*64
12Econess EnergyEN156M-60-245Monocrystalline2457.74*62
13Econess EnergyEN156P-60-245Polycrystalline2457.73*62
14Econess EnergyEN156P-72-290Polycrystalline2907.71*61
15Econess EnergyEN156M-72-290Monocrystalline2907.63*55
16Econess EnergyEN125M-72-190Monocrystalline1907.63*56
17Econess EnergyEN125M-96-250Monocrystalline2507.62*55
18Econess EnergyEN156P-72-285Polycrystalline2857.58*53
19Econess EnergyEN156M-60-240Monocrystalline2407.58*53
20Econess EnergyEN156P-60-240Polycrystalline2407.57*52
21Econess EnergyEN156M-72-285Monocrystalline2857.50*48
22Econess EnergyEN125M-96-245Monocrystalline2457.48*46
23Econess EnergyEN125M-72-185Monocrystalline1857.44*44
24Econess EnergyEN156P-72-280Polycrystalline2807.44*44
25Econess EnergyEN156M-60-235Monocrystalline2357.41*42
26Econess EnergyEN156P-60-235Polycrystalline2357.41*42
27Econess EnergyEN156M-72-280Monocrystalline2807.37*40

* 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.