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 Du Pont Apollo

Here are the PSI Ratings for modules from Du Pont Apollo, 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	Du Pont Apollo	DA136-C2	Thin Film	136	4.78*	1
2	Du Pont Apollo	DA133-C2	Thin Film	133	4.66*	1
3	Du Pont Apollo	DA130-C2	Thin Film	130	4.57*	1
4	Du Pont Apollo	DA105-A6	Thin Film	105	3.81*	1
5	Du Pont Apollo	DA102-A6	Thin Film	102	3.81*	1
6	Du Pont Apollo	DA105-A2	Thin Film	105	3.70*	1
7	Du Pont Apollo	DA100-A6	Thin Film	100	3.64*	1
8	Du Pont Apollo	DA100-A2	Thin Film	100	3.54*	0
9	Du Pont Apollo	DA095-A6	Thin Film	95	3.44*	0
10	Du Pont Apollo	DA095-A2	Thin Film	95	3.34*	0

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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.