Mission Solar MST12R620HN3G vs Mission Solar MST12R615HN3G
VS
The verdict
MST12R620HN3G leads on the differences that matter
The largest is module efficiency: 0.20 pp more efficient. 17 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.
See the one differenceHow alike are they
17
of 18 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
1 of 18 parameters
What actually differs
Parameter
MST12R620HN3G
MST12R615HN3G
Difference
Module efficiency
23.00 %
22.80 %
0.20 pp more efficient
02
What it means on a roof
Thirty years of production
Each panel's own declared degradation curve, at 1,200 kWh/kWp a year
Same temp coeff. for both panels (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
MST12R620HN3G
20,802 kWh
MST12R615HN3G
20,634 kWh
Lifetime gap
168 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
MST12R620HN3G
MST12R615HN3G
Standard test conditions
25 °C
100.0% of rated power
620 W
615 W
Cool, bright day
40 °C
95.7% of rated power
593 W
588 W
Typical summer roof
55 °C
91.3% of rated power
566 W
561 W
Hot roof
70 °C
87.0% of rated power
539 W
535 W
03
Full specification
Parameter
MST12R620HN3G
MST12R615HN3G
Difference
Power and efficiency
Rated power
620 Wp
615 Wp
Effectively the same
Module efficiency
23.00 %
22.80 %
+0.20 pp for MST12R620HN3G
Power density
229.5 Wp/m²
227.7 Wp/m²
Effectively the same
Open-circuit voltage
48.50 V
48.29 V
Effectively the same
Voltage at max power
40.24 V
39.97 V
Effectively the same
Short-circuit current
16.26 A
16.20 A
Effectively the same
Current at max power
15.41 A
15.39 A
Effectively the same
Temperature
Temperature coefficient
-0.290 %/°C
-0.290 %/°C
Same
Mechanical
Dimensions
2382x1134x30 mm
2382x1134x30 mm
Same
Module area
2.701 m²
2.701 m²
Same
Weight
33.0 kg
33.0 kg
Same
Weight per kWp
53.2 kg/kWp
53.7 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
-
-
Neither datasheet publishes this
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.40 %/yr
0.40 %/yr
Same
Technology
Cell technology
N-type
N-type
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
132
132
Same
Bifacial
Yes
Yes
Same
04
14,129 panels
Against the whole database
Efficiency
#1,970
vs
#2,769
MST12R620HN3G leads by 799 places
Power density
#2,243
vs
#3,132
MST12R620HN3G leads by 889 places
Heat behaviour
#2,220
vs
#2,220
Tied - the same position in the database
Weight
#7,129
vs
#7,730
MST12R620HN3G leads by 601 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#5,028
vs
#5,428
MST12R620HN3G leads by 400 places
05
Open the full database
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06
Written summary
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07
Questions about this pairing
Which panel is better: Mission Solar MST12R620HN3G or Mission Solar MST12R615HN3G?
According to our database: Mission Solar MST12R620HN3G has higher module efficiency (23.00% vs 22.80%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Mission Solar MST12R620HN3G and Mission Solar MST12R615HN3G?
Mission Solar MST12R620HN3G has a module efficiency of 23.00%, while Mission Solar MST12R615HN3G is 22.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Mission Solar MST12R620HN3G use vs Mission Solar MST12R615HN3G?
Mission Solar MST12R620HN3G uses N-type cells; Mission Solar MST12R615HN3G uses N-type. 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 Mission Solar MST12R620HN3G and Mission Solar MST12R615HN3G?
Mission Solar MST12R620HN3G has a 30 years power warranty; Mission Solar MST12R615HN3G has a 30 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.
Are Mission Solar MST12R620HN3G and Mission Solar MST12R615HN3G bifacial panels?
Both Mission Solar MST12R620HN3G and Mission Solar MST12R615HN3G are bifacial - they capture reflected light from the ground, which can add 5-15% more annual energy on ground-mount or elevated rooftop installations with a light surface beneath.
Shop prices: See 4 Mission 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.