Mission Solar MSH10-590HN4G vs Mission Solar MST12R620HN3G
VS
The verdict
MST12R620HN3G leads on the differences that matter
The largest is rated power: 30 W more power. 9 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.
See all 9 differencesHow alike are they
9
of 18 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
9 of 18 parameters
What actually differs
Parameter
MSH10-590HN4G
MST12R620HN3G
Difference
Rated power
590 Wp
620 Wp
30 W more power
Module area
2.583 m²
2.701 m²
0.118 m² apart
Short-circuit current
14.55 A
16.26 A
1.71 A apart
Open-circuit voltage
51.70 V
48.50 V
3.20 V apart
Module efficiency
22.80 %
23.00 %
0.20 pp more efficient
Cell count
144
132
12 cells apart
Current at max power
13.59 A
15.41 A
1.82 A apart
Voltage at max power
43.50 V
40.24 V
3.26 V apart
Dimensions
2278x1134x35 mm
2382x1134x30 mm
2278x1134x35 mm vs 2382x1134x30 mm
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.
MSH10-590HN4G
19,796 kWh
MST12R620HN3G
20,802 kWh
Lifetime gap
1,006 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
MSH10-590HN4G
MST12R620HN3G
Standard test conditions
25 °C
100.0% of rated power
590 W
620 W
Cool, bright day
40 °C
95.7% of rated power
564 W
593 W
Typical summer roof
55 °C
91.3% of rated power
539 W
566 W
Hot roof
70 °C
87.0% of rated power
513 W
539 W
03
Full specification
Parameter
MSH10-590HN4G
MST12R620HN3G
Difference
Power and efficiency
Rated power
590 Wp
620 Wp
+30 W for MST12R620HN3G
Module efficiency
22.80 %
23.00 %
+0.20 pp for MST12R620HN3G
Power density
228.4 Wp/m²
229.5 Wp/m²
Effectively the same
Open-circuit voltage
51.70 V
48.50 V
3.20 V apart
Voltage at max power
43.50 V
40.24 V
3.26 V apart
Short-circuit current
14.55 A
16.26 A
1.71 A apart
Current at max power
13.59 A
15.41 A
1.82 A apart
Temperature
Temperature coefficient
-0.290 %/°C
-0.290 %/°C
Same
Mechanical
Dimensions
2278x1134x35 mm
2382x1134x30 mm
2278x1134x35 mm vs 2382x1134x30 mm
Module area
2.583 m²
2.701 m²
0.118 m² apart
Weight
32.5 kg
33.0 kg
Effectively the same
Weight per kWp
55.1 kg/kWp
53.2 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
15 yrs
-
Not published by Mission Solar
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
144
132
12 cells apart
Bifacial
Yes
Yes
Same
04
14,129 panels
Against the whole database
Efficiency
#2,769
vs
#1,970
MST12R620HN3G leads by 799 places
Power density
#2,653
vs
#2,243
MST12R620HN3G leads by 410 places
Heat behaviour
#2,220
vs
#2,220
Tied - the same position in the database
Weight
#9,587
vs
#7,129
MST12R620HN3G leads by 2,458 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#3,217
vs
#5,028
MSH10-590HN4G leads by 1,811 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 MSH10-590HN4G or Mission Solar MST12R620HN3G?
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 MSH10-590HN4G and Mission Solar MST12R620HN3G?
Mission Solar MSH10-590HN4G has a module efficiency of 22.80%, while Mission Solar MST12R620HN3G is 23.00%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Mission Solar MSH10-590HN4G use vs Mission Solar MST12R620HN3G?
Mission Solar MSH10-590HN4G uses N-type cells; Mission Solar MST12R620HN3G 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 MSH10-590HN4G and Mission Solar MST12R620HN3G?
Mission Solar MSH10-590HN4G has a 30 years power warranty; Mission Solar MST12R620HN3G 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 MSH10-590HN4G and Mission Solar MST12R620HN3G bifacial panels?
Both Mission Solar MSH10-590HN4G and Mission Solar MST12R620HN3G 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.