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.

Subscribe to our email list

Before using the PSI Ratings, you should subscribe to our email list to receive important updates from the Principal Solar Institute.

PSI Ratings – PV Solar Modules from Solartech Energy

Here are the PSI Ratings for modules from Solartech 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	Solartech Energy	ASC-6M-72-335-3BB	Monocrystalline	335	8.87*	96
2	Solartech Energy	ASC-6M-72B-335-3BB	Monocrystalline	335	8.87*	96
3	Solartech Energy	ASC-6M-72C-335-3BB	Monocrystalline	335	8.87*	95
4	Solartech Energy	ASC-6M-72C-330-3BB	Monocrystalline	330	8.72*	94
5	Solartech Energy	ASC-6M-72-330-3BB	Monocrystalline	330	8.72*	94
6	Solartech Energy	ASC-6M-72B-330-3BB	Monocrystalline	330	8.72*	94
7	Solartech Energy	ASC-6M-60-275-3BB	Monocrystalline	275	8.65*	93
8	Solartech Energy	ASC-6M-60A-275-3BB	Monocrystalline	275	8.65*	93
9	Solartech Energy	ASC-6P-72C-330-3BB	Polycrystalline	330	8.63*	93
10	Solartech Energy	ASC-6P-72B-330-3BB	Polycrystalline	330	8.63*	93
11	Solartech Energy	ASC-6P-72-330-3BB	Polycrystalline	330	8.63*	93
12	Solartech Energy	ASC-6M-72C-325-3BB	Monocrystalline	325	8.58*	92
13	Solartech Energy	ASC-6M-72-325-3BB	Monocrystalline	325	8.58*	92
14	Solartech Energy	ASC-6M-72B-325-3BB	Monocrystalline	325	8.58*	92
15	Solartech Energy	ASC-6P-72-325-3BB	Polycrystalline	325	8.51*	91
16	Solartech Energy	ASC-6P-72C-325-3BB	Polycrystalline	325	8.51*	91
17	Solartech Energy	ASC-6P-72B-325-3BB	Polycrystalline	325	8.51*	91
18	Solartech Energy	ASC-6M-60-270-3BB	Monocrystalline	270	8.49*	91
19	Solartech Energy	ASC-6M-60A-270-3BB	Monocrystalline	270	8.49*	91
20	Solartech Energy	ASC-6M-72C-320-3BB	Monocrystalline	320	8.46*	90
21	Solartech Energy	ASC-6M-72B-320-3BB	Monocrystalline	320	8.46*	90
22	Solartech Energy	ASC-6M-72-320-3BB	Monocrystalline	320	8.46*	90
23	Solartech Energy	ASC-6P-60-270-3BB	Polycrystalline	270	8.39*	89
24	Solartech Energy	ASC-6P-60A-270-3BB	Polycrystalline	270	8.39*	89
25	Solartech Energy	ASC-6P-72B-320-3BB	Polycrystalline	320	8.38*	88
26	Solartech Energy	ASC-6P-72-320-3BB	Polycrystalline	320	8.38*	88
27	Solartech Energy	ASC-6P-72C-320-3BB	Polycrystalline	320	8.38*	88
28	Solartech Energy	ASC-6M-72-315-3BB	Monocrystalline	315	8.33*	87
29	Solartech Energy	ASC-6M-60A-265-3BB	Monocrystalline	265	8.33*	87
30	Solartech Energy	ASC-6M-60-265-3BB	Monocrystalline	265	8.33*	88
31	Solartech Energy	ASC-6P-72C-315-3BB	Polycrystalline	315	8.24*	85
32	Solartech Energy	ASC-6P-72-315-3BB	Polycrystalline	315	8.24*	85
33	Solartech Energy	ASC-6P-72B-315-3BB	Polycrystalline	315	8.24*	85
34	Solartech Energy	ASC-6P-60-265-3BB	Polycrystalline	265	8.24*	85
35	Solartech Energy	ASC-6P-60A-265-3BB	Polycrystalline	265	8.24*	85
36	Solartech Energy	ASC-6M-72-310-3BB	Monocrystalline	310	8.21*	84
37	Solartech Energy	ASC-6M-60-260-3BB	Monocrystalline	260	8.18*	83
38	Solartech Energy	ASC-6P-72B-310-3BB	Polycrystalline	310	8.11*	80
39	Solartech Energy	ASC-6P-72-310-3BB	Polycrystalline	310	8.11*	80
40	Solartech Energy	ASC-6P-72C-310-3BB	Polycrystalline	310	8.11*	80
41	Solartech Energy	ASC-6P-60A-260-3BB	Polycrystalline	260	8.08*	79
42	Solartech Energy	ASC-6P-60-260-3BB	Polycrystalline	260	8.08*	79
43	Solartech Energy	ASC-6M-72-305-3BB	Monocrystalline	305	8.06*	78
44	Solartech Energy	ASC-6M-60-255-3BB	Monocrystalline	255	8.00*	76
45	Solartech Energy	ASC-6P-72B-305-3BB	Polycrystalline	305	7.98*	74
46	Solartech Energy	ASC-6P-72-305-3BB	Polycrystalline	305	7.98*	74
47	Solartech Energy	ASC-6P-72-305	Polycrystalline	305	7.98*	74
48	Solartech Energy	ASC-6P-72C-305-3BB	Polycrystalline	305	7.98*	74
49	Solartech Energy	ASC-6M-72-300-3BB	Monocrystalline	300	7.93*	72
50	Solartech Energy	ASC-6P-60-255-3BB	Polycrystalline	255	7.93*	72
51	Solartech Energy	ASC-6P-60-255	Polycrystalline	255	7.93*	72
52	Solartech Energy	ASC-6P-60A-255-3BB	Polycrystalline	255	7.93*	72
53	Solartech Energy	ASC-6M-60-250-3BB	Monocrystalline	250	7.86*	69
54	Solartech Energy	ASC-6P-72-300	Polycrystalline	300	7.85*	68
55	Solartech Energy	ASC-6P-72-300-3BB	Polycrystalline	300	7.85*	68
56	Solartech Energy	ASC-6M-72-295-3BB	Monocrystalline	295	7.80*	65
57	Solartech Energy	ASC-6P-60-250-3BB	Polycrystalline	250	7.79*	64
58	Solartech Energy	ASC-6P-60-250	Polycrystalline	250	7.79*	64
59	Solartech Energy	ASC-6P-54-230	Polycrystalline	230	7.78*	64
60	Solartech Energy	ASC-6P-72-295-3BB	Polycrystalline	295	7.69*	59
61	Solartech Energy	ASC-6P-72-295	Polycrystalline	295	7.69*	59
62	Solartech Energy	ASC-6M-60-245-3BB	Monocrystalline	245	7.69*	59
63	Solartech Energy	ASC-6M-72-290-3BB	Monocrystalline	290	7.66*	57
64	Solartech Energy	ASC-6P-60-245-3BB	Polycrystalline	245	7.63*	56
65	Solartech Energy	ASC-6P-60-245	Polycrystalline	245	7.63*	55
66	Solartech Energy	SEC-6P-60-245	Polycrystalline	245	7.63*	56
67	Solartech Energy	ASC-6P-54-225	Polycrystalline	225	7.61*	54
68	Solartech Energy	ASC-6P-72-290	Polycrystalline	290	7.59*	53
69	Solartech Energy	ASC-6P-72-290-3BB	Polycrystalline	290	7.59*	53
70	Solartech Energy	ASC-6P-48-200	Polycrystalline	200	7.58*	53
71	Solartech Energy	ASC-6M-60-240-3BB	Monocrystalline	240	7.54*	50
72	Solartech Energy	ASC-6M-72-285-3BB	Monocrystalline	285	7.53*	50
73	Solartech Energy	SEC-6P-60-240	Polycrystalline	240	7.47*	46
74	Solartech Energy	ASC-6P-60-240-3BB	Polycrystalline	240	7.47*	46
75	Solartech Energy	ASC-6P-60-240	Polycrystalline	240	7.47*	46
76	Solartech Energy	ASC-6P-72-285	Polycrystalline	285	7.46*	45
77	Solartech Energy	ASC-6P-72-285-3BB	Polycrystalline	285	7.46*	45
78	Solartech Energy	ASC-6P-36-150	Polycrystalline	150	7.45*	45
79	Solartech Energy	ASC-6P-54-220	Polycrystalline	220	7.44*	44
80	Solartech Energy	ASC-6P-48-195	Polycrystalline	195	7.38*	40
81	Solartech Energy	ASC-6M-60-235-3BB	Monocrystalline	235	7.37*	40
82	Solartech Energy	ASC-6P-72-280	Polycrystalline	280	7.33*	37
83	Solartech Energy	ASC-6P-72-280-3BB	Polycrystalline	280	7.33*	37
84	Solartech Energy	SEC-6P-60-235	Polycrystalline	235	7.32*	37
85	Solartech Energy	ASC-6P-60-235	Polycrystalline	235	7.32*	37
86	Solartech Energy	ASC-6P-60-235-3BB	Polycrystalline	235	7.32*	37
87	Solartech Energy	ASC-6P-54-215	Polycrystalline	215	7.27*	34
88	Solartech Energy	SEC-230W-M6-G	Polycrystalline	230	7.23*	32
89	Solartech Energy	ASC-6M-60-230-3BB	Monocrystalline	230	7.22*	32
90	Solartech Energy	ASC-6P-36-145	Polycrystalline	145	7.20*	30
91	Solartech Energy	ASC-6P-48-190	Polycrystalline	190	7.19*	30
92	Solartech Energy	SEC-6P-60-230	Polycrystalline	230	7.16*	28
93	Solartech Energy	ASC-6P-60-230	Polycrystalline	230	7.15*	28
94	Solartech Energy	ASC-6P-60-230-3BB	Polycrystalline	230	7.15*	28
95	Solartech Energy	ASC-6P-54-210	Polycrystalline	210	7.09*	25
96	Solartech Energy	SEC-225W-M6-G	Polycrystalline	225	7.07*	24
97	Solartech Energy	ASC-6P-72-275	Polycrystalline	275	7.07*	24
98	Solartech Energy	ASC-6P-60-225-3BB	Polycrystalline	225	7.00*	21
99	Solartech Energy	SEC-6P-60-225	Polycrystalline	225	7.00*	22
100	Solartech Energy	ASC-6P-60-225	Polycrystalline	225	7.00*	21
101	Solartech Energy	ASC-6P-48-185	Polycrystalline	185	6.97*	20
102	Solartech Energy	ASC-6P-36-140	Polycrystalline	140	6.95*	19
103	Solartech Energy	ASC-6P-72-270	Polycrystalline	270	6.94*	18
104	Solartech Energy	ASC-6P-54-205	Polycrystalline	205	6.92*	18
105	Solartech Energy	SEC-220W-M6-G	Polycrystalline	220	6.91*	18
106	Solartech Energy	SEC-6P-60-220	Polycrystalline	220	6.85*	16
107	Solartech Energy	ASC-6P-60-220	Polycrystalline	220	6.84*	16
108	Solartech Energy	ASC-6P-72-265	Polycrystalline	265	6.82*	15
109	Solartech Energy	ASC-6P-48-180	Polycrystalline	180	6.78*	14
110	Solartech Energy	ASC-6P-54-200	Polycrystalline	200	6.75*	13
111	Solartech Energy	SEC-215W-M6-G	Polycrystalline	215	6.75*	13
112	Solartech Energy	ASC-6P-36-135	Polycrystalline	135	6.69*	11
113	Solartech Energy	SEC-210W-M6-G	Polycrystalline	210	6.61*	9
114	Solartech Energy	ASC-6P-48-175	Polycrystalline	175	6.59*	9
115	Solartech Energy	ASC-6P-36-130	Polycrystalline	130	6.44*	7

* 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.