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325 vs 320 16 of 18 identical Swap Change panels

JA Solar MYM2060-325 vs JA Solar MYM2060-320

JA Solar MYM2060-325
MYM2060-325
325 Wp 19.98 % PERC Incomplete
Open panel page Datasheet PDF
VS
JA Solar MYM2060-320
MYM2060-320
320 Wp 19.67 % PERC Incomplete
Open panel page Datasheet PDF
The verdict

325 leads on the differences that matter

The largest is module efficiency: 0.31 pp more efficient. 16 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 2 differences
How alike are they
16 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

2 of 18 parameters
Parameter 325 320 Difference
Module efficiency 19.98 % 19.67 % 0.31 pp more efficient
Power density 199.8 Wp/m² 196.7 Wp/m² 3.1 Wp/m² higher
02

What it means on a roof

Thirty years of production
A 1.0% first-year loss then 0.40% a year, assumed for both panels, at 1,200 kWh/kWp a year
Same temp coeff. for both panels (-0.370 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
325
10,904 kWh
320
10,737 kWh
Lifetime gap
167 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 325 320
Standard test conditions 25 °C 100.0% of rated power 325 W 320 W
Cool, bright day 40 °C 94.5% of rated power 307 W 302 W
Typical summer roof 55 °C 88.9% of rated power 289 W 284 W
Hot roof 70 °C 83.3% of rated power 271 W 267 W
03

Full specification

Parameter 325 320 Difference
Power and efficiency
Rated power 325 Wp 320 Wp Effectively the same
Module efficiency 19.98 % 19.67 % +0.31 pp for 325
Power density 199.8 Wp/m² 196.7 Wp/m² +3.1 Wp/m² for 325
Open-circuit voltage 41.20 V 40.90 V Effectively the same
Voltage at max power 33.60 V 33.30 V Effectively the same
Short-circuit current 10.20 A 10.10 A Effectively the same
Current at max power 9.67 A 9.61 A Effectively the same
Temperature
Temperature coefficient -0.370 %/°C -0.370 %/°C Same
Mechanical
Dimensions 1640x992x40 mm 1640x992x40 mm Same
Module area 1.627 m² 1.627 m² Same
Weight 18.5 kg 18.5 kg Same
Weight per kWp 56.9 kg/kWp 57.8 kg/kWp Effectively the same
Warranty and degradation
Product warranty 12 yrs 12 yrs Same
Performance warranty 25 yrs 25 yrs Same
Annual degradation - - Neither datasheet publishes this
Technology
Cell technology PERC PERC Same
Cell type Monocrystalline Monocrystalline Same
Cell count 60 60 Same
Bifacial No No Same
04

Against the whole database

14,005 panels
Efficiency
#12,293 vs #12,559
325 leads by 266 places
Power density
#12,250 vs #12,528
325 leads by 278 places
Heat behaviour
#13,081 vs #13,081
Tied - the same position in the database
Weight
#10,932 vs #11,428
325 leads by 496 places
Warranty
#9,798 vs #9,798
Tied - the same position in the database
Overall
#12,930 vs #13,005
325 leads by 75 places
05

More useful comparisons

Open the full database
Same series, other bin
JA Solar MYM2060-325 vs JA Solar MYM2072-385
7 differences, the largest is rated power
Same series, other bin
JA Solar MYM2060-325 vs JA Solar MYM2072-380
10 differences, the largest is rated power
Same series, other bin
JA Solar MYM2060-325 vs JA Solar MYM2072-375
10 differences, the largest is module efficiency
Same series, other bin
JA Solar MYM2060-325 vs JA Solar MYM2072-370
10 differences, the largest is module efficiency
Same series, other bin
JA Solar MYM2060-325 vs JA Solar MYM2072-365
10 differences, the largest is module efficiency
Same series, other bin
JA Solar MYM2060-325 vs JA Solar MYM2060-315
3 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: JA Solar MYM2060-325 or JA Solar MYM2060-320?
According to our database: JA Solar MYM2060-325 has higher module efficiency (19.98% vs 19.67%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of JA Solar MYM2060-325 and JA Solar MYM2060-320?
JA Solar MYM2060-325 has a module efficiency of 19.98%, while JA Solar MYM2060-320 is 19.67%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does JA Solar MYM2060-325 use vs JA Solar MYM2060-320?
JA Solar MYM2060-325 uses PERC cells; JA Solar MYM2060-320 uses PERC. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.
What is the warranty on JA Solar MYM2060-325 and JA Solar MYM2060-320?
JA Solar MYM2060-325 has a 25 years power warranty; JA Solar MYM2060-320 has a 25 years power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80-87%). Product (materials) warranties are usually shorter.

Shop prices: See 390 JA Solar offers

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate. The thirty-year projection and the temperature scenarios are calculations from those figures, and each states its assumption above.