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 Nanjing Daqo New Energy

Here are the PSI Ratings for modules from Nanjing Daqo New 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
1Nanjing Daqo New EnergyDQ240PSCbPolycrystalline2407.58*53
2Nanjing Daqo New EnergyDQ235PSCbPolycrystalline2357.42*43
3Nanjing Daqo New EnergyDQ210PSBbPolycrystalline2107.36*39
4Nanjing Daqo New EnergyDQ230PSCbPolycrystalline2307.27*34
5Nanjing Daqo New EnergyDQ190MFAbMonocrystalline1907.24*33
6Nanjing Daqo New EnergyDQ205PSBbPolycrystalline2057.17*29
7Nanjing Daqo New EnergyDQ225PSCbPolycrystalline2257.11*26
8Nanjing Daqo New EnergyDQ185MFAbMonocrystalline1857.05*23
9Nanjing Daqo New EnergyDQ200PSBbPolycrystalline2007.01*22
10Nanjing Daqo New EnergyDQ220PSCbPolycrystalline2206.96*19
11Nanjing Daqo New EnergyDQ180MFAbMonocrystalline1806.86*16
12Nanjing Daqo New EnergyDQ195PSBbPolycrystalline1956.83*15
13Nanjing Daqo New EnergyDQ190PSBbPolycrystalline1906.66*11

* 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.