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 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
1Moser Baer PhotovoltaicMBPV CAAP BB 245WPolycrystalline2457.53*49
2Moser Baer PhotovoltaicMBPV CAAP BB 230WPolycrystalline2307.36*39
3Moser Baer PhotovoltaicMBPV CAAP BB 240WPolycrystalline2407.35*39
4Moser Baer PhotovoltaicMBPV CAAP BB 225WPolycrystalline2257.22*31
5Moser Baer PhotovoltaicMBPV CAAP 215WPolycrystalline2157.21*31
6Moser Baer PhotovoltaicMBPV CAAP BB 235WPolycrystalline2357.19*30
7Moser Baer PhotovoltaicMBPV CAAP BB 220WPolycrystalline2207.05*23
8Moser Baer PhotovoltaicMBPV CAAP BB 215WPolycrystalline2156.87*16
9Moser Baer PhotovoltaicMBPV CAAP 220Polycrystalline2206.87*16
10Moser Baer PhotovoltaicMBPV CAAP BB 210WPolycrystalline2106.73*12
11Moser Baer PhotovoltaicMBPV CAAP 210Polycrystalline2106.59*9

* 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.