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B54HBW vs B54HBB 19 of 19 identical Swap Change panels

DMEGC DM455M10RT-B54HBW vs DMEGC DM455M10RT-B54HBB

DMEGC DM455M10RT-B54HBW
DM455M10RT-B54HBW
455 Wp 22.80 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
DMEGC DM455M10RT-B54HBB
DM455M10RT-B54HBB
455 Wp 22.80 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

Identical on every published parameter

All 19 comparable parameters agree. Two records this alike are usually one panel sold under two names, or two bins of the same production line - decide on price and on who you would rather buy from.

How alike are they
19 of 19 comparable
parameters are identical
identical differs
01

What actually differs

0 of 19 parameters

Every comparable parameter agrees. The full specification is below.

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.
B54HBW
15,266 kWh
B54HBB
15,266 kWh
Lifetime gap
No difference
Output when it is hot
Rated power carried across the range a module actually sees
Scenario B54HBW B54HBB
Standard test conditions 25 °C 100.0% of rated power 455 W 455 W
Cool, bright day 40 °C 95.7% of rated power 435 W 435 W
Typical summer roof 55 °C 91.3% of rated power 415 W 415 W
Hot roof 70 °C 87.0% of rated power 396 W 396 W
03

Full specification

Parameter B54HBW B54HBB Difference
Power and efficiency
Rated power 455 Wp 455 Wp Same
Module efficiency 22.80 % 22.80 % Same
Power density 227.7 Wp/m² 227.7 Wp/m² Same
Open-circuit voltage 40.45 V 40.45 V Same
Voltage at max power 34.11 V 34.11 V Same
Short-circuit current 14.24 A 14.24 A Same
Current at max power 13.34 A 13.34 A Same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 1762x1134x30 mm 1762x1134x30 mm Same
Module area 1.998 m² 1.998 m² Same
Weight 24.5 kg 24.5 kg Same
Weight per kWp 53.8 kg/kWp 53.8 kg/kWp Same
Warranty and degradation
Product warranty 25 yrs 25 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 108 108 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#2,714 vs #2,714
Tied - the same position in the database
Power density
#2,888 vs #2,888
Tied - the same position in the database
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#7,897 vs #7,897
Tied - the same position in the database
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#5,669 vs #5,669
Tied - the same position in the database
05

More useful comparisons

Open the full database
Same series, other bin
DMEGC DM455M10RT-B54HBW vs DMEGC DM465M10RT-B54HBW
3 differences, the largest is module efficiency
Same series, other bin
DMEGC DM455M10RT-B54HBW vs DMEGC DM465M10RT-B54HSW
3 differences, the largest is module efficiency
Same series, other bin
DMEGC DM455M10RT-B54HBW vs DMEGC DM460M10RT-B54HBB
One difference: module efficiency
Same series, other bin
DMEGC DM455M10RT-B54HBW vs DMEGC DM460M10RT-B54HBW
One difference: module efficiency
Same series, other bin
DMEGC DM455M10RT-B54HBW vs DMEGC DM460M10RT-B54HBT
One difference: module efficiency
Same series, other bin
DMEGC DM455M10RT-B54HBW vs DMEGC DM460M10RT-B54HSW
One difference: module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: DMEGC DM455M10RT-B54HBW or DMEGC DM455M10RT-B54HBB?
According to our database: both panels are closely matched on key specs - the decision often comes down to price and local availability. See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of DMEGC DM455M10RT-B54HBW and DMEGC DM455M10RT-B54HBB?
DMEGC DM455M10RT-B54HBW has a module efficiency of 22.80%, while DMEGC DM455M10RT-B54HBB is 22.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does DMEGC DM455M10RT-B54HBW use vs DMEGC DM455M10RT-B54HBB?
DMEGC DM455M10RT-B54HBW uses TOPCon cells; DMEGC DM455M10RT-B54HBB uses TOPCon. 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 DMEGC DM455M10RT-B54HBW and DMEGC DM455M10RT-B54HBB?
DMEGC DM455M10RT-B54HBW has a 30 years power warranty; DMEGC DM455M10RT-B54HBB 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 DMEGC DM455M10RT-B54HBW and DMEGC DM455M10RT-B54HBB bifacial panels?
Both DMEGC DM455M10RT-B54HBW and DMEGC DM455M10RT-B54HBB 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 81 DMEGC 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.