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MYM2072-370 vs MYM2060-320 8 of 18 identical Swap Change panels

JA Solar MYM2072-370 vs JA Solar MYM2060-320

JA Solar MYM2072-370
MYM2072-370
370 Wp 19.07 % 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

MYM2060-320 leads on the differences that matter

The largest is rated power: 50 W more power. 8 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 10 differences
How alike are they
8 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

10 of 18 parameters
Parameter MYM2072-370 MYM2060-320 Difference
Rated power 370 Wp 320 Wp 50 W more power
Module efficiency 19.07 % 19.67 % 0.60 pp more efficient
Weight 22.5 kg 18.5 kg 4.0 kg lighter
Power density 190.7 Wp/m² 196.7 Wp/m² 6.0 Wp/m² higher
Open-circuit voltage 48.70 V 40.90 V 7.80 V apart
Module area 1.940 m² 1.627 m² 0.313 m² apart
Weight per kWp 60.8 kg/kWp 57.8 kg/kWp 3.0 kg/kWp lighter
Voltage at max power 39.70 V 33.30 V 6.40 V apart
Cell count 72 60 12 cells apart
Dimensions 1956x992x40 mm 1640x992x40 mm 1956x992x40 mm vs 1640x992x40 mm
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.
MYM2072-370
12,414 kWh
MYM2060-320
10,737 kWh
Lifetime gap
1,677 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario MYM2072-370 MYM2060-320
Standard test conditions 25 °C 100.0% of rated power 370 W 320 W
Cool, bright day 40 °C 94.5% of rated power 349 W 302 W
Typical summer roof 55 °C 88.9% of rated power 329 W 284 W
Hot roof 70 °C 83.3% of rated power 308 W 267 W
03

Full specification

Parameter MYM2072-370 MYM2060-320 Difference
Power and efficiency
Rated power 370 Wp 320 Wp +50 W for MYM2072-370
Module efficiency 19.07 % 19.67 % +0.60 pp for MYM2060-320
Power density 190.7 Wp/m² 196.7 Wp/m² +6.0 Wp/m² for MYM2060-320
Open-circuit voltage 48.70 V 40.90 V 7.80 V apart
Voltage at max power 39.70 V 33.30 V 6.40 V apart
Short-circuit current 9.88 A 10.10 A Effectively the same
Current at max power 9.32 A 9.61 A Effectively the same
Temperature
Temperature coefficient -0.370 %/°C -0.370 %/°C Same
Mechanical
Dimensions 1956x992x40 mm 1640x992x40 mm 1956x992x40 mm vs 1640x992x40 mm
Module area 1.940 m² 1.627 m² 0.313 m² apart
Weight 22.5 kg 18.5 kg -4.0 kg for MYM2060-320
Weight per kWp 60.8 kg/kWp 57.8 kg/kWp -3.0 kg/kWp for MYM2060-320
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 72 60 12 cells apart
Bifacial No No Same
04

Against the whole database

14,005 panels
Efficiency
#12,923 vs #12,559
MYM2060-320 leads by 364 places
Power density
#12,900 vs #12,528
MYM2060-320 leads by 372 places
Heat behaviour
#13,081 vs #13,081
Tied - the same position in the database
Weight
#12,539 vs #11,428
MYM2060-320 leads by 1,111 places
Warranty
#9,798 vs #9,798
Tied - the same position in the database
Overall
#12,851 vs #13,005
MYM2072-370 leads by 154 places
05

More useful comparisons

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

Written summary

07

Questions about this pairing

Which panel is better: JA Solar MYM2072-370 or JA Solar MYM2060-320?
According to our database: JA Solar MYM2060-320 has higher module efficiency (19.67% vs 19.07%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of JA Solar MYM2072-370 and JA Solar MYM2060-320?
JA Solar MYM2072-370 has a module efficiency of 19.07%, 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 MYM2072-370 use vs JA Solar MYM2060-320?
JA Solar MYM2072-370 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 MYM2072-370 and JA Solar MYM2060-320?
JA Solar MYM2072-370 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.