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 Integrated Power

Here are the PSI Ratings for modules from Integrated 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
1	Integrated Power	IPC190P01-US	Polycrystalline	190	8.40*	89
2	Integrated Power	IPC190P01	Polycrystalline	190	8.40*	89
3	Integrated Power	IPC185P01-US	Polycrystalline	185	8.19*	83
4	Integrated Power	IPC185P01	Polycrystalline	185	8.19*	83
5	Integrated Power	IPC185M01	Monocrystalline	185	7.98*	74
6	Integrated Power	IPC185M01-US	Monocrystalline	185	7.98*	74
7	Integrated Power	IPC280P01	Polycrystalline	280	7.96*	73
8	Integrated Power	IPC280P01-US	Polycrystalline	280	7.96*	73
9	Integrated Power	IPC275P01	Polycrystalline	275	7.80*	65
10	Integrated Power	IPC275P01-US	Polycrystalline	275	7.80*	65
11	Integrated Power	IPC180P01	Polycrystalline	180	7.79*	65
12	Integrated Power	IPC180P01-US	Polycrystalline	180	7.79*	65
13	Integrated Power	IPC180M01-US	Monocrystalline	180	7.77*	64
14	Integrated Power	IPC180M01	Monocrystalline	180	7.77*	64
15	Integrated Power	IPC225P01	Polycrystalline	225	7.75*	63
16	Integrated Power	IPC225P01-US	Polycrystalline	225	7.75*	63
17	Integrated Power	IPC175P01-US	Polycrystalline	175	7.74*	62
18	Integrated Power	IPC175P01	Polycrystalline	175	7.74*	62
19	Integrated Power	IPC270P01	Polycrystalline	270	7.67*	58
20	Integrated Power	IPC270P01-US	Polycrystalline	270	7.67*	58
21	Integrated Power	IPC220P01-US	Polycrystalline	220	7.58*	53
22	Integrated Power	IPC220P01	Polycrystalline	220	7.58*	53
23	Integrated Power	IPC175M01	Monocrystalline	175	7.55*	51
24	Integrated Power	IPC175M01-US	Monocrystalline	175	7.55*	51
25	Integrated Power	IPC265P01-US	Polycrystalline	265	7.53*	49
26	Integrated Power	IPC265P01	Polycrystalline	265	7.53*	49
27	Integrated Power	IPC215P01-US	Polycrystalline	215	7.42*	42
28	Integrated Power	IPC215P01	Polycrystalline	215	7.42*	42
29	Integrated Power	IPC260P01	Polycrystalline	260	7.39*	41
30	Integrated Power	IPC260P01-US	Polycrystalline	260	7.39*	41
31	Integrated Power	IPC255P01	Polycrystalline	255	7.25*	33
32	Integrated Power	IPC255P01-US	Polycrystalline	255	7.25*	33
33	Integrated Power	IPC210P01-US	Polycrystalline	210	7.25*	33
34	Integrated Power	IPC210P01	Polycrystalline	210	7.25*	33
35	Integrated Power	IPC250P01-US	Polycrystalline	250	7.10*	26
36	Integrated Power	IPC250P01	Polycrystalline	250	7.10*	26
37	Integrated Power	IPC205P01-US	Polycrystalline	205	7.07*	24
38	Integrated Power	IPC205P01	Polycrystalline	205	7.07*	24
39	Integrated Power	IPC245P01-US	Polycrystalline	245	6.96*	19
40	Integrated Power	IPC245P01	Polycrystalline	245	6.96*	19
41	Integrated Power	IPC200P01	Polycrystalline	200	6.89*	17
42	Integrated Power	IPC200P01-US	Polycrystalline	200	6.89*	17
43	Integrated Power	IPC240P01	Polycrystalline	240	6.83*	15
44	Integrated Power	IPC240P01-US	Polycrystalline	240	6.83*	15
45	Integrated Power	IPC235P01-US	Polycrystalline	235	6.75*	13
46	Integrated Power	IPC235P01	Polycrystalline	235	6.75*	13
47	Integrated Power	IPC230P01-US	Polycrystalline	230	6.60*	9
48	Integrated Power	IPC230P01	Polycrystalline	230	6.60*	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.