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MSX10-445HN0B vs MST12660HP3G 3 of 18 identical Swap Change panels

Mission Solar MSX10-445HN0B vs Mission Solar MST12660HP3G

Mission Solar
MSX10-445HN0B
445 Wp 22.80 % N-type
Open panel page Datasheet PDF
VS
Mission Solar
MST12660HP3G
660 Wp 21.20 % PERC Bifacial
Open panel page Datasheet PDF
The verdict

MSX10-445HN0B leads on the differences that matter

The largest is module efficiency: 1.60 pp more efficient. 3 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 15 differences
How alike are they
3 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

15 of 18 parameters
Parameter MSX10-445HN0B MST12660HP3G Difference
Module efficiency 22.80 % 21.20 % 1.60 pp more efficient
Temperature coefficient -0.290 %/°C -0.340 %/°C 0.050 %/°C better in heat
Rated power 445 Wp 660 Wp 215 W more power
Power density 227.9 Wp/m² 212.5 Wp/m² 15.4 Wp/m² higher
Weight 21.3 kg 38.7 kg 17.4 kg lighter
Weight per kWp 47.9 kg/kWp 58.6 kg/kWp 10.8 kg/kWp lighter
Open-circuit voltage 39.69 V 45.90 V 6.21 V apart
Short-circuit current 14.02 A 18.45 A 4.43 A apart
Module area 1.953 m² 3.106 m² 1.154 m² apart
Cell technology N-type PERC N-type vs PERC
Voltage at max power 33.44 V 38.10 V 4.66 V apart
Current at max power 13.31 A 17.35 A 4.04 A apart
Cell count 108 132 24 cells apart
Bifacial No Yes No vs Yes
Dimensions 1722x1134x35 mm 2384x1303x35 mm 1722x1134x35 mm vs 2384x1303x35 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
MSX10-445HN0B
14,814 kWh
MST12660HP3G
21,734 kWh
Lifetime gap
6,920 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario MSX10-445HN0B MST12660HP3G
Standard test conditions 25 °C 100.0% of rated power 445 W 660 W
Cool, bright day 40 °C 94.9% of rated power 426 W 626 W
Typical summer roof 55 °C 89.8% of rated power 406 W 593 W
Hot roof 70 °C 84.7% of rated power 387 W 559 W
03

Full specification

Parameter MSX10-445HN0B MST12660HP3G Difference
Power and efficiency
Rated power 445 Wp 660 Wp +215 W for MST12660HP3G
Module efficiency 22.80 % 21.20 % +1.60 pp for MSX10-445HN0B
Power density 227.9 Wp/m² 212.5 Wp/m² +15.4 Wp/m² for MSX10-445HN0B
Open-circuit voltage 39.69 V 45.90 V 6.21 V apart
Voltage at max power 33.44 V 38.10 V 4.66 V apart
Short-circuit current 14.02 A 18.45 A 4.43 A apart
Current at max power 13.31 A 17.35 A 4.04 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.340 %/°C +0.050 %/°C for MSX10-445HN0B
Mechanical
Dimensions 1722x1134x35 mm 2384x1303x35 mm 1722x1134x35 mm vs 2384x1303x35 mm
Module area 1.953 m² 3.106 m² 1.154 m² apart
Weight 21.3 kg 38.7 kg -17.4 kg for MSX10-445HN0B
Weight per kWp 47.9 kg/kWp 58.6 kg/kWp -10.8 kg/kWp for MSX10-445HN0B
Warranty and degradation
Product warranty 25 yrs - Not published by Mission Solar
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.45 %/yr 0.45 %/yr Same
Technology
Cell technology N-type PERC N-type vs PERC
Cell type Monocrystalline Monocrystalline Same
Cell count 108 132 24 cells apart
Bifacial No Yes No vs Yes
04

Against the whole database

14,005 panels
Efficiency
#2,714 vs #9,076
MSX10-445HN0B leads by 6,362 places
Power density
#2,790 vs #8,959
MSX10-445HN0B leads by 6,169 places
Heat behaviour
#2,165 vs #8,778
MSX10-445HN0B leads by 6,613 places
Weight
#1,948 vs #11,817
MSX10-445HN0B leads by 9,869 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#5,891 vs #5,651
MST12660HP3G leads by 240 places
05

More useful comparisons

Open the full database
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Mission Solar
Mission Solar MSX10-445HN0B vs Mission Solar MSX10-440HN0B
One difference: module efficiency
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Mission Solar MSX10-445HN0B vs Mission Solar MSX10-435HN0B
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Mission Solar MST12660HP3G vs Mission Solar MST12670HP3G
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Mission Solar MST12660HP3G vs Mission Solar MST12665HP3G
One difference: module efficiency
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Mission Solar MSX10-445HN0B vs Mission Solar MST12R620HN3G
13 differences, the largest is rated power
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Mission Solar MSX10-445HN0B vs Mission Solar MST12R615HN3G
12 differences, the largest is rated power
06

Written summary

07

Questions about this pairing

Which panel is better: Mission Solar MSX10-445HN0B or Mission Solar MST12660HP3G?
According to our database: Mission Solar MSX10-445HN0B has higher module efficiency (22.80% vs 21.20%); Mission Solar MSX10-445HN0B tolerates heat better (temp coeff -0.290%/°C vs -0.340%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Mission Solar MSX10-445HN0B and Mission Solar MST12660HP3G?
Mission Solar MSX10-445HN0B has a module efficiency of 22.80%, while Mission Solar MST12660HP3G is 21.20%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Mission Solar MSX10-445HN0B use vs Mission Solar MST12660HP3G?
Mission Solar MSX10-445HN0B uses N-type cells; Mission Solar MST12660HP3G 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 Mission Solar MSX10-445HN0B and Mission Solar MST12660HP3G?
Mission Solar MSX10-445HN0B has a 30 years power warranty; Mission Solar MST12660HP3G 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 MSX10-445HN0B and Mission Solar MST12660HP3G bifacial panels?
Mission Solar MST12660HP3G is bifacial (captures light from both faces); Mission Solar MSX10-445HN0B is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.

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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.