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.

Subscribe to our email list

Before using the PSI Ratings, you should subscribe to our email list to receive important updates from the Principal Solar Institute.

PSI Ratings – PV Solar Modules from GE Energy

Here are the PSI Ratings for modules from GE 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
1GE EnergyGEPVp-205-MPolycrystalline2056.95*19
2GE EnergyGEPVp-200-MPolycrystalline2006.70*12
3GE EnergyGEPVp-066-GPolycrystalline665.27*2
4GE EnergyGE-CIGS155Thin Film1557.87*69
5GE EnergyGE-CIGS150Thin Film1507.68*59
6GE EnergyGE-CIGS145Thin Film1457.42*42
7GE EnergyGE-CIGS140Thin Film1407.19*30
8GE EnergyGE-CIGS130Thin Film1306.72*12
9GE EnergyGE85-NA-BThin Film856.38*6
10GE EnergyGE80-NA-BThin Film805.83*3

* 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.