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 Moser Baer Photovoltaic

Here are the PSI Ratings for modules from Moser Baer Photovoltaic, 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	Moser Baer Photovoltaic	MBPV CAAP BB 245W	Polycrystalline	245	7.53*	49
2	Moser Baer Photovoltaic	MBPV CAAP BB 230W	Polycrystalline	230	7.36*	39
3	Moser Baer Photovoltaic	MBPV CAAP BB 240W	Polycrystalline	240	7.35*	39
4	Moser Baer Photovoltaic	MBPV CAAP BB 225W	Polycrystalline	225	7.22*	31
5	Moser Baer Photovoltaic	MBPV CAAP 215W	Polycrystalline	215	7.21*	31
6	Moser Baer Photovoltaic	MBPV CAAP BB 235W	Polycrystalline	235	7.19*	30
7	Moser Baer Photovoltaic	MBPV CAAP BB 220W	Polycrystalline	220	7.05*	23
8	Moser Baer Photovoltaic	MBPV CAAP BB 215W	Polycrystalline	215	6.87*	16
9	Moser Baer Photovoltaic	MBPV CAAP 220	Polycrystalline	220	6.87*	16
10	Moser Baer Photovoltaic	MBPV CAAP BB 210W	Polycrystalline	210	6.73*	12
11	Moser Baer Photovoltaic	MBPV CAAP 210	Polycrystalline	210	6.59*	9

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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.