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 Juli New Energy

Here are the PSI Ratings for modules from Juli New 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	Juli New Energy	JLS215P	Polycrystalline	215	8.41*	89
2	Juli New Energy	JLS210M	Monocrystalline	210	8.30*	86
3	Juli New Energy	JLS72M320WH(156)	Monocrystalline	320	8.18*	83
4	Juli New Energy	JLS72M315WH(156)	Monocrystalline	315	8.08*	79
5	Juli New Energy	JLS205M	Monocrystalline	205	8.07*	78
6	Juli New Energy	JLS60M265WH(156)	Monocrystalline	265	8.06*	78
7	Juli New Energy	JLS60P260WH(156)	Polycrystalline	260	7.96*	73
8	Juli New Energy	JLS72P310WH(156)	Polycrystalline	310	7.95*	73
9	Juli New Energy	JLS72M310WH(156)	Monocrystalline	310	7.95*	73
10	Juli New Energy	JLS60M260WH(156)	Monocrystalline	260	7.91*	71
11	Juli New Energy	JLS200M	Monocrystalline	200	7.91*	71
12	Juli New Energy	JLS72P305WH(156)	Polycrystalline	305	7.83*	67
13	Juli New Energy	JLS72M305WH(156)	Monocrystalline	305	7.82*	67
14	Juli New Energy	JLS60P255WH(156)	Polycrystalline	255	7.79*	65
15	Juli New Energy	JLS60M255WH(156)	Monocrystalline	255	7.77*	64
16	Juli New Energy	JLS72M300WH(156)	Monocrystalline	300	7.68*	58
17	Juli New Energy	JLS72P300WH(156)	Polycrystalline	300	7.68*	58
18	Juli New Energy	JLS60P250WH(156)	Polycrystalline	250	7.65*	57
19	Juli New Energy	JLS60M250WH(156)	Monocrystalline	250	7.61*	54
20	Juli New Energy	JLS72P295WH(156)	Polycrystalline	295	7.56*	51
21	Juli New Energy	JLS60P245WH(156)	Polycrystalline	245	7.50*	48
22	Juli New Energy	JLS72P290WH(156)	Polycrystalline	290	7.43*	43
23	Juli New Energy	JLS60P240WH(156)	Polycrystalline	240	7.35*	39
24	Juli New Energy	JLS230P	Polycrystalline	230	7.02*	22
25	Juli New Energy	JLS180M	Monocrystalline	180	7.02*	22
26	Juli New Energy	JLS225P	Polycrystalline	225	6.87*	16
27	Juli New Energy	JLS175M	Monocrystalline	175	6.83*	16
28	Juli New Energy	JLS220P	Polycrystalline	220	6.71*	12
29	Juli New Energy	JLS170M	Monocrystalline	170	6.64*	10
30	Juli New Energy	JLS165M	Monocrystalline	165	6.29*	5
31	Juli New Energy	JLS160M	Monocrystalline	160	6.11*	4
32	Juli New Energy	JLS155M	Monocrystalline	155	5.92*	3

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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.