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 Inventec Energy

Here are the PSI Ratings for modules from Inventec Energy, 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	Inventec Energy	IECS-6M6C-330	Monocrystalline	330	8.35*	88
2	Inventec Energy	IECS-6M6A-275	Monocrystalline	275	8.33*	87
3	Inventec Energy	IECS-6M6C-325	Monocrystalline	325	8.23*	84
4	Inventec Energy	IECS-6M6A-270	Monocrystalline	270	8.18*	83
5	Inventec Energy	IECS-6M6C-320	Monocrystalline	320	8.10*	80
6	Inventec Energy	IECS-6M6C-315	Monocrystalline	315	7.96*	74
7	Inventec Energy	IECS-6M6A-265	Monocrystalline	265	7.93*	72
8	Inventec Energy	IECS-6P6A-255	Polycrystalline	255	7.91*	71
9	Inventec Energy	IECS-6P69-230	Polycrystalline	230	7.88*	70
10	Inventec Energy	IECS-6P68-205	Polycrystalline	205	7.87*	69
11	Inventec Energy	IECS-6M6A-260	Monocrystalline	260	7.87*	69
12	Inventec Energy	IECS-6M6C-310	Monocrystalline	310	7.84*	68
13	Inventec Energy	IECS-6P6A-250	Polycrystalline	250	7.75*	63
14	Inventec Energy	IECS-6M6C-305	Monocrystalline	305	7.72*	61
15	Inventec Energy	IECS-6P69-225	Polycrystalline	225	7.72*	61
16	Inventec Energy	IECS-6M6A-255	Monocrystalline	255	7.70*	60
17	Inventec Energy	IECS-6P68-200	Polycrystalline	200	7.67*	58
18	Inventec Energy	IECS-6M67-175	Monocrystalline	175	7.67*	58
19	Inventec Energy	IECS-6P67-175	Polycrystalline	175	7.65*	57
20	Inventec Energy	IECS-6M68-195	Monocrystalline	195	7.62*	55
21	Inventec Energy	IECS-6M6C-300	Monocrystalline	300	7.60*	54
22	Inventec Energy	IECS-6P6A-245	Polycrystalline	245	7.58*	53
23	Inventec Energy	IECS-6M6A-250	Monocrystalline	250	7.55*	50
24	Inventec Energy	IECS-6P69-220	Polycrystalline	220	7.53*	50
25	Inventec Energy	IECS-6M6A-245	Monocrystalline	245	7.51*	48
26	Inventec Energy	IECS-6P6A-240	Polycrystalline	240	7.49*	48
27	Inventec Energy	IECS-6P6C-300	Polycrystalline	300	7.48*	47
28	Inventec Energy	IECS-6P68-195	Polycrystalline	195	7.48*	47
29	Inventec Energy	IECS-6M6C-295	Monocrystalline	295	7.47*	46
30	Inventec Energy	IECS-6M66-150	Monocrystalline	150	7.45*	45
31	Inventec Energy	IECS-6M67-170	Monocrystalline	170	7.44*	44
32	Inventec Energy	IECS-6P6C-285	Polycrystalline	285	7.39*	41
33	Inventec Energy	IECS-6P69-215	Polycrystalline	215	7.37*	39
34	Inventec Energy	IECS-6P6C-295	Polycrystalline	295	7.35*	38
35	Inventec Energy	IECS-6M6A-240	Monocrystalline	240	7.35*	38
36	Inventec Energy	IECS-6P67-170	Polycrystalline	170	7.34*	38
37	Inventec Energy	IECS-6M6C-290	Monocrystalline	290	7.34*	38
38	Inventec Energy	IECS-6P6A-235	Polycrystalline	235	7.33*	38
39	Inventec Energy	IECS-6M68-190	Monocrystalline	190	7.31*	36
40	Inventec Energy	IECS-6P68-190	Polycrystalline	190	7.29*	35
41	Inventec Energy	IECS-6P66-145	Polycrystalline	145	7.29*	35
42	Inventec Energy	IECS-6P6C-280	Polycrystalline	280	7.26*	34
43	Inventec Energy	IECS-6P6C-290	Polycrystalline	290	7.23*	32
44	Inventec Energy	IECS-6M6C-285	Monocrystalline	285	7.22*	31
45	Inventec Energy	IECS-6M67-165	Monocrystalline	165	7.20*	31
46	Inventec Energy	IECS-6P69-210	Polycrystalline	210	7.19*	30
47	Inventec Energy	IECS-6M66-145	Monocrystalline	145	7.19*	30
48	Inventec Energy	IECS-6M6A-235	Monocrystalline	235	7.19*	30
49	Inventec Energy	IECS-6P6A-230	Polycrystalline	230	7.17*	29
50	Inventec Energy	IECS-6P6C-275	Polycrystalline	275	7.12*	27
51	Inventec Energy	IECS-6M68-185	Monocrystalline	185	7.11*	26
52	Inventec Energy	IECS-6P67-165	Polycrystalline	165	7.11*	26
53	Inventec Energy	IECS-6P68-185	Polycrystalline	185	7.10*	26
54	Inventec Energy	IECS-6P66-140	Polycrystalline	140	7.04*	23
55	Inventec Energy	IECS-6M6A-230	Monocrystalline	230	7.03*	22
56	Inventec Energy	IECS-6P69-205	Polycrystalline	205	7.02*	22
57	Inventec Energy	IECS-6P6A-225	Polycrystalline	225	7.02*	22
58	Inventec Energy	IECS-6M67-160	Monocrystalline	160	6.95*	19
59	Inventec Energy	IECS-6M66-140	Monocrystalline	140	6.94*	19
60	Inventec Energy	IECS-6M69-210	Monocrystalline	210	6.94*	19
61	Inventec Energy	IECS-6P67-160	Polycrystalline	160	6.90*	17
62	Inventec Energy	IECS-6M6A-225	Monocrystalline	225	6.89*	17
63	Inventec Energy	IECS-6M68-180	Monocrystalline	180	6.89*	17
64	Inventec Energy	IECS-6P6A-220	Polycrystalline	220	6.86*	16
65	Inventec Energy	IECS-6P69-200	Polycrystalline	200	6.84*	16
66	Inventec Energy	IECS-6P66-135	Polycrystalline	135	6.79*	14
67	Inventec Energy	IECS-6M69-205	Monocrystalline	205	6.78*	13
68	Inventec Energy	IECS-6P67-155	Polycrystalline	155	6.74*	12
69	Inventec Energy	IECS-6M67-155	Monocrystalline	155	6.74*	12
70	Inventec Energy	IECS-6M6A-220	Monocrystalline	220	6.74*	12
71	Inventec Energy	IECS-6M68-175	Monocrystalline	175	6.70*	12
72	Inventec Energy	IECS-6P68-175	Polycrystalline	175	6.69*	11
73	Inventec Energy	IECS-6P69-195	Polycrystalline	195	6.68*	11
74	Inventec Energy	IECS-6M66-135	Monocrystalline	135	6.67*	11
75	Inventec Energy	IECS-6P66-130	Polycrystalline	130	6.66*	11
76	Inventec Energy	IECS-6P6A-215	Polycrystalline	215	6.66*	11
77	Inventec Energy	IECS-6M69-200	Monocrystalline	200	6.61*	9
78	Inventec Energy	IECS-6M6A-215	Monocrystalline	215	6.59*	9
79	Inventec Energy	IECS-6M67-150	Monocrystalline	150	6.53*	8
80	Inventec Energy	IECS-6P67-150	Polycrystalline	150	6.53*	8
81	Inventec Energy	IECS-6P6A-210	Polycrystalline	210	6.51*	8
82	Inventec Energy	IECS-6P69-190	Polycrystalline	190	6.51*	8
83	Inventec Energy	IECS-6M68-170	Monocrystalline	170	6.51*	8
84	Inventec Energy	IECS-6P68-170	Polycrystalline	170	6.50*	8
85	Inventec Energy	IECS-6M66-130	Monocrystalline	130	6.42*	6
86	Inventec Energy	IECS-6P66-125	Polycrystalline	125	6.41*	6
87	Inventec Energy	IECS-6P68-165	Polycrystalline	165	6.33*	5
88	Inventec Energy	IECS-6P67-145	Polycrystalline	145	6.31*	5

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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.