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 Ningbo Solar Electric Power

Here are the PSI Ratings for modules from Ningbo Solar Electric Power, 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
1Ningbo Solar Electric PowerTPB156x156-72-P 280WPolycrystalline2807.32*37
2Ningbo Solar Electric PowerTPB156x156-60-P 230WPolycrystalline2307.21*31
3Ningbo Solar Electric PowerTPB125x125-72-P 180WPolycrystalline1807.20*30
4Ningbo Solar Electric PowerTDB125x125-72-P 180WMonocrystalline1807.15*28
5Ningbo Solar Electric PowerTPB156x156-72-P 270WPolycrystalline2707.06*24
6Ningbo Solar Electric PowerTPB125x125-96-P 240WPolycrystalline2407.05*24
7Ningbo Solar Electric PowerTPB156x156-60-P 225WPolycrystalline2257.04*23
8Ningbo Solar Electric PowerTPB125x125-72-P 175WPolycrystalline1757.00*22
9Ningbo Solar Electric PowerTPB156x156-54-P 200WPolycrystalline2006.96*19
10Ningbo Solar Electric PowerTDB125x125-72-P 175WMonocrystalline1756.95*19
11Ningbo Solar Electric PowerTPB156x156-60-P 220WPolycrystalline2206.90*17
12Ningbo Solar Electric PowerTPB156x156-54-P 195WPolycrystalline1956.86*16
13Ningbo Solar Electric PowerTPB125x125-72-P 170WPolycrystalline1706.81*14
14Ningbo Solar Electric PowerTDB125x125-72-P 170WMonocrystalline1706.81*14
15Ningbo Solar Electric PowerTPB156x156-72-P 260WPolycrystalline2606.80*14
16Ningbo Solar Electric PowerTPB125x125-96-P 230WPolycrystalline2306.75*13
17Ningbo Solar Electric PowerTPB156x156-60-P 215WPolycrystalline2156.71*12
18Ningbo Solar Electric PowerTPB156x156-72-P 255WPolycrystalline2556.67*11
19Ningbo Solar Electric PowerTPB156x156-54-P 190WPolycrystalline1906.61*9
20Ningbo Solar Electric PowerTDB125x125-72-P 165WMonocrystalline1656.60*9
21Ningbo Solar Electric PowerTPB125x125-72-P 165WPolycrystalline1656.59*9
22Ningbo Solar Electric PowerTPB156x156-72-P 250WPolycrystalline2506.55*8
23Ningbo Solar Electric PowerTPB156x156-60-P 210WPolycrystalline2106.55*8
24Ningbo Solar Electric PowerTPB125x125-96-P 220WPolycrystalline2206.46*7
25Ningbo Solar Electric PowerTPB156x156-60-P 205WPolycrystalline2056.40*6
26Ningbo Solar Electric PowerTPB156x156-54-P 185WPolycrystalline1856.39*6
27Ningbo Solar Electric PowerTPB156x156-72-P 240WPolycrystalline2406.37*6
28Ningbo Solar Electric PowerTPB125x125-72-P 160WPolycrystalline1606.37*6
29Ningbo Solar Electric PowerTPB125x125-72-P 155WPolycrystalline1556.26*5
30Ningbo Solar Electric PowerTPB156x156-60-P 200WPolycrystalline2006.24*5
31Ningbo Solar Electric PowerTPB156x156-54-P 180WPolycrystalline1806.23*5
32Ningbo Solar Electric PowerTPB156x156-72-P 230WPolycrystalline2306.10*4
33Ningbo Solar Electric PowerTDB125x125-72-P 160WMonocrystalline1606.09*4
34Ningbo Solar Electric PowerTPB125x125-96-P 210WPolycrystalline2106.08*3
35Ningbo Solar Electric PowerTPB125x125-72-P 150WPolycrystalline1506.07*3
36Ningbo Solar Electric PowerTDB125x125-72-P 155WMonocrystalline1555.90*3
37Ningbo Solar Electric PowerTPB125x125-96-P 200WPolycrystalline2005.80*3
38Ningbo Solar Electric PowerTDB125x125-72-P 150WMonocrystalline1505.71*2

* 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.