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 Apollo Solar Energy

Here are the PSI Ratings for modules from Apollo Solar 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	Apollo Solar Energy	ASEC-220G6M68	Polycrystalline	220	8.52*	91
2	Apollo Solar Energy	ASEC-220G6S68	Monocrystalline	220	8.47*	90
3	Apollo Solar Energy	ASEC-270G6M6A	Polycrystalline	270	8.44*	90
4	Apollo Solar Energy	ASEC-245G6M69	Polycrystalline	245	8.44*	90
5	Apollo Solar Energy	ASEC-245G6S69	Monocrystalline	245	8.40*	89
6	Apollo Solar Energy	ASEC-270G6S6A	Monocrystalline	270	8.39*	89
7	Apollo Solar Energy	ASEC-295G6M6B	Polycrystalline	295	8.38*	88
8	Apollo Solar Energy	ASEC-325G6M	Polycrystalline	325	8.38*	88
9	Apollo Solar Energy	ASEC-215G6M68	Polycrystalline	215	8.33*	87
10	Apollo Solar Energy	ASEC-325G6S	Monocrystalline	325	8.32*	87
11	Apollo Solar Energy	ASEC-295G6S6B	Monocrystalline	295	8.32*	87
12	Apollo Solar Energy	ASEC-215G6S68	Monocrystalline	215	8.28*	86
13	Apollo Solar Energy	ASEC-265G6M6A	Polycrystalline	265	8.28*	86
14	Apollo Solar Energy	ASEC-240G6M69	Polycrystalline	240	8.26*	85
15	Apollo Solar Energy	ASEC-290G6M6B	Polycrystalline	290	8.24*	85
16	Apollo Solar Energy	ASEC-265G6S6A	Monocrystalline	265	8.24*	84
17	Apollo Solar Energy	ASEC-320G6M	Polycrystalline	320	8.24*	85
18	Apollo Solar Energy	ASEC-240G6S69	Monocrystalline	240	8.23*	84
19	Apollo Solar Energy	ASEC-320G6S	Monocrystalline	320	8.19*	83
20	Apollo Solar Energy	ASEC-290G6S6B	Monocrystalline	290	8.18*	83
21	Apollo Solar Energy	ASEC-210G6M68	Polycrystalline	210	8.13*	81
22	Apollo Solar Energy	ASEC-260G6M6A	Polycrystalline	260	8.13*	81
23	Apollo Solar Energy	ASEC-315G6M	Polycrystalline	315	8.12*	80
24	Apollo Solar Energy	ASEC-210G6S68	Monocrystalline	210	8.09*	79
25	Apollo Solar Energy	ASEC-285G6M6B	Polycrystalline	285	8.09*	79
26	Apollo Solar Energy	ASEC-235G6M69	Polycrystalline	235	8.09*	79
27	Apollo Solar Energy	ASEC-260G6S6A	Monocrystalline	260	8.08*	79
28	Apollo Solar Energy	ASEC-235G6S69	Monocrystalline	235	8.06*	78
29	Apollo Solar Energy	ASEC-315G6S	Monocrystalline	315	8.06*	78
30	Apollo Solar Energy	ASEC-285G6S6B	Monocrystalline	285	8.04*	77
31	Apollo Solar Energy	ASEC-310G6M	Polycrystalline	310	7.99*	75
32	Apollo Solar Energy	ASEC-255G6M6A	Polycrystalline	255	7.97*	74
33	Apollo Solar Energy	ASEC-155G6M49	Polycrystalline	155	7.95*	73
34	Apollo Solar Energy	ASEC-280G6M6B	Polycrystalline	280	7.95*	73
35	Apollo Solar Energy	ASEC-205G6M68	Polycrystalline	205	7.94*	73
36	Apollo Solar Energy	ASEC-310G6S	Monocrystalline	310	7.93*	72
37	Apollo Solar Energy	ASEC-230G6M69	Polycrystalline	230	7.92*	71
38	Apollo Solar Energy	ASEC-255G6S6A	Monocrystalline	255	7.92*	72
39	Apollo Solar Energy	ASEC-155G6S49	Monocrystalline	155	7.91*	71
40	Apollo Solar Energy	ASEC-280G6S6B	Monocrystalline	280	7.90*	70
41	Apollo Solar Energy	ASEC-230G6S69	Monocrystalline	230	7.89*	70
42	Apollo Solar Energy	ASEC-205G6S68	Monocrystalline	205	7.89*	70
43	Apollo Solar Energy	ASEC-305G6M	Polycrystalline	305	7.85*	68
44	Apollo Solar Energy	ASEC-305G6S	Monocrystalline	305	7.81*	66
45	Apollo Solar Energy	ASEC-275G6M6B	Polycrystalline	275	7.81*	66
46	Apollo Solar Energy	ASEC-250G6M6A	Polycrystalline	250	7.80*	66
47	Apollo Solar Energy	ASEC-245G6S6A	Monocrystalline	245	7.79*	65
48	Apollo Solar Energy	ASEC-245G6M6A	Polycrystalline	245	7.77*	64
49	Apollo Solar Energy	ASEC-250G6S6A	Monocrystalline	250	7.77*	64
50	Apollo Solar Energy	ASEC-275G6S6B	Monocrystalline	275	7.76*	63
51	Apollo Solar Energy	ASEC-200G6M68	Polycrystalline	200	7.75*	63
52	Apollo Solar Energy	ASEC-225G6M69	Polycrystalline	225	7.74*	62
53	Apollo Solar Energy	ASEC-300G6M	Polycrystalline	300	7.73*	62
54	Apollo Solar Energy	ASEC-225G6S69	Monocrystalline	225	7.72*	61
55	Apollo Solar Energy	ASEC-200G6S68	Monocrystalline	200	7.70*	60
56	Apollo Solar Energy	ASEC-150G6M49	Polycrystalline	150	7.69*	59
57	Apollo Solar Energy	ASEC-300G6S	Monocrystalline	300	7.68*	59
58	Apollo Solar Energy	ASEC-220G6S69	Monocrystalline	220	7.66*	57
59	Apollo Solar Energy	ASEC-270G6M6B	Polycrystalline	270	7.66*	58
60	Apollo Solar Energy	ASEC-270G6S6B	Monocrystalline	270	7.65*	57
61	Apollo Solar Energy	ASEC-150G6S49	Monocrystalline	150	7.65*	57
62	Apollo Solar Energy	ASEC-195G6S68	Monocrystalline	195	7.63*	55
63	Apollo Solar Energy	ASEC-240G6S6A	Monocrystalline	240	7.63*	56
64	Apollo Solar Energy	ASEC-220G6M69	Polycrystalline	220	7.61*	54
65	Apollo Solar Energy	ASEC-240G6M6A	Polycrystalline	240	7.61*	55
66	Apollo Solar Energy	ASEC-295G6M	Polycrystalline	295	7.60*	54
67	Apollo Solar Energy	ASEC-290G6S	Monocrystalline	290	7.57*	52
68	Apollo Solar Energy	ASEC-195G6M68	Polycrystalline	195	7.57*	52
69	Apollo Solar Energy	ASEC-295G6S	Monocrystalline	295	7.55*	51
70	Apollo Solar Energy	ASEC-210G6S	Monocrystalline	210	7.55*	51
71	Apollo Solar Energy	ASEC-265G6M6B	Polycrystalline	265	7.52*	49
72	Apollo Solar Energy	ASEC-265G6S6B	Monocrystalline	265	7.51*	49
73	Apollo Solar Energy	ASEC-290G6M	Polycrystalline	290	7.50*	48
74	Apollo Solar Energy	ASEC-215G6S69	Monocrystalline	215	7.48*	47
75	Apollo Solar Energy	ASEC-285G6S	Monocrystalline	285	7.45*	45
76	Apollo Solar Energy	ASEC-215G6M69	Polycrystalline	215	7.44*	44
77	Apollo Solar Energy	ASEC-235G6S	Monocrystalline	235	7.43*	44
78	Apollo Solar Energy	ASEC-210G6M	Polycrystalline	210	7.43*	44
79	Apollo Solar Energy	ASEC-190G6S68	Monocrystalline	190	7.43*	43
80	Apollo Solar Energy	ASEC-145G6M49	Polycrystalline	145	7.43*	43
81	Apollo Solar Energy	ASEC-145G6S49	Monocrystalline	145	7.40*	41
82	Apollo Solar Energy	ASEC-235G6M	Polycrystalline	235	7.39*	41
83	Apollo Solar Energy	ASEC-260G6M6B	Polycrystalline	260	7.38*	40
84	Apollo Solar Energy	ASEC-190G6M68	Polycrystalline	190	7.37*	40
85	Apollo Solar Energy	ASEC-205G6S	Monocrystalline	205	7.37*	40
86	Apollo Solar Energy	ASEC-260G6S6B	Monocrystalline	260	7.37*	40
87	Apollo Solar Energy	ASEC-285G6M	Polycrystalline	285	7.37*	40
88	Apollo Solar Energy	ASEC-280G6S	Monocrystalline	280	7.31*	36
89	Apollo Solar Energy	ASEC-230G6S	Monocrystalline	230	7.27*	34
90	Apollo Solar Energy	ASEC-205G6M	Polycrystalline	205	7.26*	34
91	Apollo Solar Energy	ASEC-140G6S	Monocrystalline	140	7.26*	34
92	Apollo Solar Energy	ASEC-280G6M	Polycrystalline	280	7.24*	33
93	Apollo Solar Energy	ASEC-255G6M6B	Polycrystalline	255	7.24*	32
94	Apollo Solar Energy	ASEC-140G6M	Polycrystalline	140	7.24*	33
95	Apollo Solar Energy	ASEC-230G6M	Polycrystalline	230	7.23*	32
96	Apollo Solar Energy	ASEC-255G6S6B	Monocrystalline	255	7.23*	32
97	Apollo Solar Energy	ASEC-200G6S	Monocrystalline	200	7.20*	30
98	Apollo Solar Energy	ASEC-275G6S	Monocrystalline	275	7.18*	29
99	Apollo Solar Energy	ASEC-225G6S	Monocrystalline	225	7.16*	28
100	Apollo Solar Energy	ASEC-185G6M	Polycrystalline	185	7.14*	27
101	Apollo Solar Energy	ASEC-185G6S	Monocrystalline	185	7.13*	27
102	Apollo Solar Energy	ASEC-275G6M	Polycrystalline	275	7.11*	26
103	Apollo Solar Energy	ASEC-250G6M6B	Polycrystalline	250	7.10*	25
104	Apollo Solar Energy	ASEC-225G6M	Polycrystalline	225	7.09*	25
105	Apollo Solar Energy	ASEC-200G6M	Polycrystalline	200	7.08*	25
106	Apollo Solar Energy	ASEC-250G6S6B	Monocrystalline	250	7.08*	25
107	Apollo Solar Energy	ASEC-270G6S	Monocrystalline	270	7.05*	24
108	Apollo Solar Energy	ASEC-195G6S	Monocrystalline	195	7.01*	22
109	Apollo Solar Energy	ASEC-220G6S	Monocrystalline	220	7.00*	21
110	Apollo Solar Energy	ASEC-135G6S	Monocrystalline	135	7.00*	21
111	Apollo Solar Energy	ASEC-270G6M	Polycrystalline	270	6.99*	21
112	Apollo Solar Energy	ASEC-135G6M	Polycrystalline	135	6.99*	21
113	Apollo Solar Energy	ASEC-180G6M	Polycrystalline	180	6.96*	19
114	Apollo Solar Energy	ASEC-180G6S	Monocrystalline	180	6.95*	19
115	Apollo Solar Energy	ASEC-220G6M	Monocrystalline	220	6.94*	19
116	Apollo Solar Energy	ASEC-195G6M	Polycrystalline	195	6.91*	17
117	Apollo Solar Energy	ASEC-265G6S	Monocrystalline	265	6.89*	17
118	Apollo Solar Energy	ASEC-265G6M	Polycrystalline	265	6.88*	17
119	Apollo Solar Energy	ASEC-215G6S	Monocrystalline	215	6.84*	16
120	Apollo Solar Energy	ASEC-190G6S	Monocrystalline	190	6.83*	15
121	Apollo Solar Energy	ASEC-215G6M	Monocrystalline	215	6.78*	13
122	Apollo Solar Energy	ASEC-130G6M	Polycrystalline	130	6.76*	13
123	Apollo Solar Energy	ASEC-130G6S	Monocrystalline	130	6.76*	13
124	Apollo Solar Energy	ASEC-175G6M	Polycrystalline	175	6.76*	13
125	Apollo Solar Energy	ASEC-175G6S	Monocrystalline	175	6.75*	13
126	Apollo Solar Energy	ASEC-260G6S	Monocrystalline	260	6.75*	13
127	Apollo Solar Energy	ASEC-260G6M	Polycrystalline	260	6.75*	13
128	Apollo Solar Energy	ASEC-190G6M	Polycrystalline	190	6.74*	12
129	Apollo Solar Energy	ASEC-255G6S	Monocrystalline	255	6.63*	10
130	Apollo Solar Energy	ASEC-255G6M	Polycrystalline	255	6.62*	10
131	Apollo Solar Energy	ASEC-125G6S	Monocrystalline	125	6.49*	7
132	Apollo Solar Energy	ASEC-250G6M	Polycrystalline	250	6.49*	7
133	Apollo Solar Energy	ASEC-125G6M	Polycrystalline	125	6.45*	7
134	Apollo Solar Energy	ASEC-245G6M	Polycrystalline	245	6.37*	6
135	Apollo Solar Energy	ASEC-120G6M	Polycrystalline	120	6.19*	4

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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.