Principal Solar Institute

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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 Zhejiang Guangyi Optical Energy Technology

Here are the PSI Ratings for modules from Zhejiang Guangyi Optical Energy Technology, 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
1Zhejiang Guangyi Optical Energy TechnologyGYP-150MMonocrystalline1507.97*74
2Zhejiang Guangyi Optical Energy TechnologyGYP-250MMonocrystalline2507.65*57
3Zhejiang Guangyi Optical Energy TechnologyGYP-290MMonocrystalline2907.61*54
4Zhejiang Guangyi Optical Energy TechnologyGYP-285PPolycrystalline2857.61*55
5Zhejiang Guangyi Optical Energy TechnologyGYP-245MMonocrystalline2457.50*48
6Zhejiang Guangyi Optical Energy TechnologyGYP-280PPolycrystalline2807.48*47
7Zhejiang Guangyi Optical Energy TechnologyGYP-185MMonocrystalline1857.43*44
8Zhejiang Guangyi Optical Energy TechnologyGYP-210PPolycrystalline2107.38*40
9Zhejiang Guangyi Optical Energy TechnologyGYP-185PPolycrystalline1857.36*39
10Zhejiang Guangyi Optical Energy TechnologyGYP-280MMonocrystalline2807.34*38
11Zhejiang Guangyi Optical Energy TechnologyGYP-240MMonocrystalline2407.34*38
12Zhejiang Guangyi Optical Energy TechnologyGYP-230PPolycrystalline2307.26*34
13Zhejiang Guangyi Optical Energy TechnologyGYP-180MMonocrystalline1807.23*32
14Zhejiang Guangyi Optical Energy TechnologyGYP-270PPolycrystalline2707.21*31
15Zhejiang Guangyi Optical Energy TechnologyGYP-235MMonocrystalline2357.19*30
16Zhejiang Guangyi Optical Energy TechnologyGYP-180PPolycrystalline1807.14*27
17Zhejiang Guangyi Optical Energy TechnologyGYP-225PPolycrystalline2257.11*26
18Zhejiang Guangyi Optical Energy TechnologyGYP-200PPolycrystalline2007.10*26
19Zhejiang Guangyi Optical Energy TechnologyGYP-265PPolycrystalline2657.08*25
20Zhejiang Guangyi Optical Energy TechnologyGYP-270MMonocrystalline2707.07*24
21Zhejiang Guangyi Optical Energy TechnologyGYP-230MMonocrystalline2307.04*23
22Zhejiang Guangyi Optical Energy TechnologyGYP-220PPolycrystalline2206.95*19
23Zhejiang Guangyi Optical Energy TechnologyGYP-175PPolycrystalline1756.92*18
24Zhejiang Guangyi Optical Energy TechnologyGYP-190PPolycrystalline1906.74*12
25Zhejiang Guangyi Optical Energy TechnologyGYP-170PPolycrystalline1706.69*11

* 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.