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
1	Nanjing Daqo New Energy	DQ240PSCb	Polycrystalline	240	7.58*	53
2	Nanjing Daqo New Energy	DQ235PSCb	Polycrystalline	235	7.42*	43
3	Nanjing Daqo New Energy	DQ210PSBb	Polycrystalline	210	7.36*	39
4	Nanjing Daqo New Energy	DQ230PSCb	Polycrystalline	230	7.27*	34
5	Nanjing Daqo New Energy	DQ190MFAb	Monocrystalline	190	7.24*	33
6	Nanjing Daqo New Energy	DQ205PSBb	Polycrystalline	205	7.17*	29
7	Nanjing Daqo New Energy	DQ225PSCb	Polycrystalline	225	7.11*	26
8	Nanjing Daqo New Energy	DQ185MFAb	Monocrystalline	185	7.05*	23
9	Nanjing Daqo New Energy	DQ200PSBb	Polycrystalline	200	7.01*	22
10	Nanjing Daqo New Energy	DQ220PSCb	Polycrystalline	220	6.96*	19
11	Nanjing Daqo New Energy	DQ180MFAb	Monocrystalline	180	6.86*	16
12	Nanjing Daqo New Energy	DQ195PSBb	Polycrystalline	195	6.83*	15
13	Nanjing Daqo New Energy	DQ190PSBb	Polycrystalline	190	6.66*	11

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* 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.