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MNB156(HCBF)-645W vs MNB144(HCBF)-600W 11 of 19 identical Swap Change panels

Philadelphia Solar PS-MNB156(HCBF)-645W vs Philadelphia Solar PS-MNB144(HCBF)-600W

Philadelphia Solar PS-MNB156(HCBF)-645W
Philadelphia Solar
PS-MNB156(HCBF)-645W
645 Wp 23.08 % N-type Bifacial
Open panel page Datasheet PDF
VS
Philadelphia Solar PS-MNB144(HCBF)-600W
Philadelphia Solar
PS-MNB144(HCBF)-600W
600 Wp 23.23 % N-type Bifacial
Open panel page Datasheet PDF
The verdict

8 differences, and they point both ways

The largest is rated power: 45 W more power. 11 of 19 comparable parameters are identical.

See all 8 differences
How alike are they
11 of 19 comparable
parameters are identical
identical differs
01

What actually differs

8 of 19 parameters
Parameter MNB156(HCBF)-645W MNB144(HCBF)-600W Difference
Rated power 645 Wp 600 Wp 45 W more power
Weight 32.5 kg 27.0 kg 5.5 kg lighter
Weight per kWp 50.4 kg/kWp 45.0 kg/kWp 5.4 kg/kWp lighter
Open-circuit voltage 56.40 V 52.21 V 4.19 V apart
Module area 2.794 m² 2.583 m² 0.211 m² apart
Cell count 156 144 12 cells apart
Voltage at max power 48.00 V 44.57 V 3.43 V apart
Dimensions 2464x1134x35 mm 2278x1134x30 mm 2464x1134x35 mm vs 2278x1134x30 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.
MNB156(HCBF)-645W
21,641 kWh
MNB144(HCBF)-600W
20,131 kWh
Lifetime gap
1,510 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario MNB156(HCBF)-645W MNB144(HCBF)-600W
Standard test conditions 25 °C 100.0% of rated power 645 W 600 W
Cool, bright day 40 °C 95.7% of rated power 617 W 574 W
Typical summer roof 55 °C 91.3% of rated power 589 W 548 W
Hot roof 70 °C 87.0% of rated power 561 W 522 W
03

Full specification

Parameter MNB156(HCBF)-645W MNB144(HCBF)-600W Difference
Power and efficiency
Rated power 645 Wp 600 Wp +45 W for MNB156(HCBF)-645W
Module efficiency 23.08 % 23.23 % Effectively the same
Power density 230.8 Wp/m² 232.3 Wp/m² Effectively the same
Open-circuit voltage 56.40 V 52.21 V 4.19 V apart
Voltage at max power 48.00 V 44.57 V 3.43 V apart
Short-circuit current 14.22 A 14.26 A Effectively the same
Current at max power 13.44 A 13.47 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 2464x1134x35 mm 2278x1134x30 mm 2464x1134x35 mm vs 2278x1134x30 mm
Module area 2.794 m² 2.583 m² 0.211 m² apart
Weight 32.5 kg 27.0 kg -5.5 kg for MNB144(HCBF)-600W
Weight per kWp 50.4 kg/kWp 45.0 kg/kWp -5.4 kg/kWp for MNB144(HCBF)-600W
Warranty and degradation
Product warranty 12 yrs 12 yrs Same
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 156 144 12 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#1,677 vs #1,252
MNB144(HCBF)-600W leads by 425 places
Power density
#1,647 vs #1,252
MNB144(HCBF)-600W leads by 395 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#3,767 vs #574
MNB144(HCBF)-600W leads by 3,193 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#1,810 vs #2,803
MNB156(HCBF)-645W leads by 993 places
05

More useful comparisons

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06

Written summary

07

Questions about this pairing

Which panel is better: Philadelphia Solar PS-MNB156(HCBF)-645W or Philadelphia Solar PS-MNB144(HCBF)-600W?
According to our database: Philadelphia Solar PS-MNB144(HCBF)-600 W has higher module efficiency (23.23% vs 23.08%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Philadelphia Solar PS-MNB156(HCBF)-645W and Philadelphia Solar PS-MNB144(HCBF)-600W?
Philadelphia Solar PS-MNB156(HCBF)-645 W has a module efficiency of 23.08%, while Philadelphia Solar PS-MNB144(HCBF)-600 W is 23.23%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Philadelphia Solar PS-MNB156(HCBF)-645W use vs Philadelphia Solar PS-MNB144(HCBF)-600W?
Philadelphia Solar PS-MNB156(HCBF)-645 W uses N-type cells; Philadelphia Solar PS-MNB144(HCBF)-600 W 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 Philadelphia Solar PS-MNB156(HCBF)-645W and Philadelphia Solar PS-MNB144(HCBF)-600W?
Philadelphia Solar PS-MNB156(HCBF)-645 W has a 30 years power warranty; Philadelphia Solar PS-MNB144(HCBF)-600 W 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 Philadelphia Solar PS-MNB156(HCBF)-645W and Philadelphia Solar PS-MNB144(HCBF)-600W bifacial panels?
Both Philadelphia Solar PS-MNB156(HCBF)-645 W and Philadelphia Solar PS-MNB144(HCBF)-600 W 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.

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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.