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MST12665HP3G vs MSH10-595HN4G 3 of 18 identical Swap Change panels

Mission Solar MST12665HP3G vs Mission Solar MSH10-595HN4G

Mission Solar
MST12665HP3G
665 Wp 21.40 % PERC Bifacial
Open panel page Datasheet PDF
VS
Mission Solar
MSH10-595HN4G
595 Wp 23.00 % N-type Bifacial
Open panel page Datasheet PDF
The verdict

MSH10-595HN4G 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 MST12665HP3G MSH10-595HN4G Difference
Module efficiency 21.40 % 23.00 % 1.60 pp more efficient
Temperature coefficient -0.340 %/°C -0.290 %/°C 0.050 %/°C better in heat
Rated power 665 Wp 595 Wp 70 W more power
Power density 214.1 Wp/m² 230.3 Wp/m² 16.3 Wp/m² higher
Weight 38.7 kg 32.5 kg 6.2 kg lighter
Open-circuit voltage 46.10 V 51.85 V 5.75 V apart
Short-circuit current 18.50 A 14.62 A 3.88 A apart
Module area 3.106 m² 2.583 m² 0.523 m² apart
Weight per kWp 58.2 kg/kWp 54.6 kg/kWp 3.6 kg/kWp lighter
Cell technology PERC N-type PERC vs N-type
Voltage at max power 38.30 V 43.55 V 5.25 V apart
Current at max power 17.39 A 13.67 A 3.72 A apart
Cell count 132 144 12 cells apart
Annual degradation 0.45 %/yr 0.40 %/yr 0.05 %/yr slower
Dimensions 2384x1303x35 mm 2278x1134x35 mm 2384x1303x35 mm vs 2278x1134x35 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
MST12665HP3G
21,899 kWh
MSH10-595HN4G
19,963 kWh
Lifetime gap
1,936 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario MST12665HP3G MSH10-595HN4G
Standard test conditions 25 °C 100.0% of rated power 665 W 595 W
Cool, bright day 40 °C 94.9% of rated power 631 W 569 W
Typical summer roof 55 °C 89.8% of rated power 597 W 543 W
Hot roof 70 °C 84.7% of rated power 563 W 517 W
03

Full specification

Parameter MST12665HP3G MSH10-595HN4G Difference
Power and efficiency
Rated power 665 Wp 595 Wp +70 W for MST12665HP3G
Module efficiency 21.40 % 23.00 % +1.60 pp for MSH10-595HN4G
Power density 214.1 Wp/m² 230.3 Wp/m² +16.3 Wp/m² for MSH10-595HN4G
Open-circuit voltage 46.10 V 51.85 V 5.75 V apart
Voltage at max power 38.30 V 43.55 V 5.25 V apart
Short-circuit current 18.50 A 14.62 A 3.88 A apart
Current at max power 17.39 A 13.67 A 3.72 A apart
Temperature
Temperature coefficient -0.340 %/°C -0.290 %/°C +0.050 %/°C for MSH10-595HN4G
Mechanical
Dimensions 2384x1303x35 mm 2278x1134x35 mm 2384x1303x35 mm vs 2278x1134x35 mm
Module area 3.106 m² 2.583 m² 0.523 m² apart
Weight 38.7 kg 32.5 kg -6.2 kg for MSH10-595HN4G
Weight per kWp 58.2 kg/kWp 54.6 kg/kWp -3.6 kg/kWp for MSH10-595HN4G
Warranty and degradation
Product warranty - 15 yrs Not published by Mission Solar
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.45 %/yr 0.40 %/yr -0.05 %/yr for MSH10-595HN4G
Technology
Cell technology PERC N-type PERC vs N-type
Cell type Monocrystalline Monocrystalline Same
Cell count 132 144 12 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,129 panels
Efficiency
#8,388 vs #1,970
MSH10-595HN4G leads by 6,418 places
Power density
#8,315 vs #1,809
MSH10-595HN4G leads by 6,506 places
Heat behaviour
#8,846 vs #2,220
MSH10-595HN4G leads by 6,626 places
Weight
#11,709 vs #9,059
MSH10-595HN4G leads by 2,650 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#5,332 vs #2,813
MSH10-595HN4G leads by 2,519 places
05

More useful comparisons

Open the full database
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06

Written summary

07

Questions about this pairing

Which panel is better: Mission Solar MST12665HP3G or Mission Solar MSH10-595HN4G?
According to our database: Mission Solar MSH10-595HN4G has higher module efficiency (23.00% vs 21.40%); Mission Solar MSH10-595HN4G 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 MST12665HP3G and Mission Solar MSH10-595HN4G?
Mission Solar MST12665HP3G has a module efficiency of 21.40%, while Mission Solar MSH10-595HN4G is 23.00%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Mission Solar MST12665HP3G use vs Mission Solar MSH10-595HN4G?
Mission Solar MST12665HP3G uses PERC cells; Mission Solar MSH10-595HN4G 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 MST12665HP3G and Mission Solar MSH10-595HN4G?
Mission Solar MST12665HP3G has a 30 years power warranty; Mission Solar MSH10-595HN4G 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 MST12665HP3G and Mission Solar MSH10-595HN4G bifacial panels?
Both Mission Solar MST12665HP3G and Mission Solar MSH10-595HN4G 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.