Bisol BDO 460 vs Bisol BBO 520
VS
The verdict
BBO 520 leads on the differences that matter
The largest is rated power: 60 W more power. 11 of 19 comparable parameters are identical.
See all 8 differencesHow alike are they
11
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
8 of 19 parameters
What actually differs
Parameter
BDO 460
BBO 520
Difference
Rated power
460 Wp
520 Wp
60 W more power
Open-circuit voltage
35.90 V
40.60 V
4.70 V apart
Module area
1.998 m²
2.240 m²
0.242 m² apart
Weight
21.0 kg
23.5 kg
2.5 kg lighter
Module efficiency
23.00 %
23.20 %
0.20 pp more efficient
Cell count
96
108
12 cells apart
Voltage at max power
29.90 V
33.80 V
3.90 V apart
Dimensions
1762x1134x30 mm
1975x1134x35 mm
1762x1134x30 mm vs 1975x1134x35 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.
BDO 460
15,650 kWh
BBO 520
17,691 kWh
Lifetime gap
2,041 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
BDO 460
BBO 520
Standard test conditions
25 °C
100.0% of rated power
460 W
520 W
Cool, bright day
40 °C
95.7% of rated power
440 W
497 W
Typical summer roof
55 °C
91.3% of rated power
420 W
475 W
Hot roof
70 °C
87.0% of rated power
400 W
452 W
03
Full specification
Parameter
BDO 460
BBO 520
Difference
Power and efficiency
Rated power
460 Wp
520 Wp
+60 W for BBO 520
Module efficiency
23.00 %
23.20 %
+0.20 pp for BBO 520
Power density
230.2 Wp/m²
232.2 Wp/m²
Effectively the same
Open-circuit voltage
35.90 V
40.60 V
4.70 V apart
Voltage at max power
29.90 V
33.80 V
3.90 V apart
Short-circuit current
16.20 A
16.20 A
Same
Current at max power
15.40 A
15.40 A
Same
Temperature
Temperature coefficient
-0.290 %/°C
-0.290 %/°C
Same
Mechanical
Dimensions
1762x1134x30 mm
1975x1134x35 mm
1762x1134x30 mm vs 1975x1134x35 mm
Module area
1.998 m²
2.240 m²
0.242 m² apart
Weight
21.0 kg
23.5 kg
-2.5 kg for BDO 460
Weight per kWp
45.7 kg/kWp
45.2 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
25 yrs
25 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.31 %/yr
0.31 %/yr
Same
Technology
Cell technology
TOPCon
TOPCon
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
96
108
12 cells apart
Bifacial
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#1,919
vs
#1,306
BBO 520 leads by 613 places
Power density
#1,876
vs
#1,328
BBO 520 leads by 548 places
Heat behaviour
#2,165
vs
#2,165
Tied - the same position in the database
Weight
#805
vs
#635
BBO 520 leads by 170 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#5,126
vs
#2,878
BBO 520 leads by 2,248 places
05
Open the full database
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06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Bisol BDO 460 or Bisol BBO 520?
According to our database: Bisol BBO 520 has higher module efficiency (23.20% vs 23.00%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Bisol BDO 460 and Bisol BBO 520?
Bisol BDO 460 has a module efficiency of 23.00%, while Bisol BBO 520 is 23.20%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Bisol BDO 460 use vs Bisol BBO 520?
Bisol BDO 460 uses TOPCon cells; Bisol BBO 520 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 Bisol BDO 460 and Bisol BBO 520?
Bisol BDO 460 has a 30 years power warranty; Bisol BBO 520 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.
Shop prices: See 12 Bisol 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.