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 Hangzhou Zhejiang University Sunny Energy Science & Technology

Here are the PSI Ratings for modules from Hangzhou Zhejiang University Sunny Energy Science & 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
1	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-335C72	Monocrystalline	335	8.80*	95
2	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-330C72	Monocrystalline	330	8.67*	94
3	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-275C60	Monocrystalline	275	8.63*	93
4	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-325C72	Monocrystalline	325	8.54*	92
5	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-270C60	Monocrystalline	270	8.47*	90
6	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-320C72	Monocrystalline	320	8.41*	89
7	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-265C60	Monocrystalline	265	8.31*	87
8	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-320P72	Polycrystalline	320	8.29*	86
9	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-315C72	Monocrystalline	315	8.28*	86
10	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-265P60	Polycrystalline	265	8.26*	86
11	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-315P72	Polycrystalline	315	8.16*	82
12	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-260C60	Monocrystalline	260	8.16*	82
13	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-310C72	Monocrystalline	310	8.15*	82
14	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-260P60	Polycrystalline	260	8.12*	80
15	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-230C54	Monocrystalline	230	8.08*	79
16	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-310P72	Polycrystalline	310	8.03*	77
17	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-305C72	Monocrystalline	305	8.01*	76
18	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-255C60	Monocrystalline	255	8.01*	76
19	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-300C72	Monocrystalline	300	7.98*	74
20	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-255P60	Polycrystalline	255	7.95*	73
21	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-305P72	Polycrystalline	305	7.90*	70
22	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-250C60	Monocrystalline	250	7.88*	70
23	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-250P60	Polycrystalline	250	7.80*	65
24	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-300P72	Polycrystalline	300	7.77*	64
25	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-220C54	Monocrystalline	220	7.73*	61
26	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-290C72	Monocrystalline	290	7.72*	61
27	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-290P72	Polycrystalline	290	7.69*	59
28	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-220P54	Polycrystalline	220	7.67*	58
29	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-245P60	Polycrystalline	245	7.65*	57
30	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-295P72	Polycrystalline	295	7.64*	56
31	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-190C	Monocrystalline	190	7.61*	55
32	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-240C60	Monocrystalline	240	7.56*	52
33	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-240P60	Polycrystalline	240	7.54*	50
34	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-280C72	Monocrystalline	280	7.44*	44
35	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-280P72	Polycrystalline	280	7.42*	43
36	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-185C	Monocrystalline	185	7.41*	42
37	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-210C54	Monocrystalline	210	7.37*	40
38	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-210P54	Polycrystalline	210	7.33*	38
39	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-230C60	Monocrystalline	230	7.25*	33
40	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-230P60	Polycrystalline	230	7.24*	33
41	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-180C	Monocrystalline	180	7.20*	31
42	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-270P72	Polycrystalline	270	7.16*	28
43	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-200P54	Polycrystalline	200	6.99*	21
44	Hangzhou Zhejiang University Sunny Energy Science & Technology	ZDNY-220P60	Polycrystalline	220	6.92*	18

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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.