Bisol BBO 520 vs Bisol BDO 460
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
BBO 520
BDO 460
Difference
Rated power
520 Wp
460 Wp
60 W more power
Open-circuit voltage
40.60 V
35.90 V
4.70 V apart
Module area
2.240 m²
1.998 m²
0.242 m² apart
Weight
23.5 kg
21.0 kg
2.5 kg lighter
Module efficiency
23.20 %
23.00 %
0.20 pp more efficient
Cell count
108
96
12 cells apart
Voltage at max power
33.80 V
29.90 V
3.90 V apart
Dimensions
1975x1134x35 mm
1762x1134x30 mm
1975x1134x35 mm vs 1762x1134x30 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.
BBO 520
17,691 kWh
BDO 460
15,650 kWh
Lifetime gap
2,041 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
BBO 520
BDO 460
Standard test conditions
25 °C
100.0% of rated power
520 W
460 W
Cool, bright day
40 °C
95.7% of rated power
497 W
440 W
Typical summer roof
55 °C
91.3% of rated power
475 W
420 W
Hot roof
70 °C
87.0% of rated power
452 W
400 W
03
Full specification
Parameter
BBO 520
BDO 460
Difference
Power and efficiency
Rated power
520 Wp
460 Wp
+60 W for BBO 520
Module efficiency
23.20 %
23.00 %
+0.20 pp for BBO 520
Power density
232.2 Wp/m²
230.2 Wp/m²
Effectively the same
Open-circuit voltage
40.60 V
35.90 V
4.70 V apart
Voltage at max power
33.80 V
29.90 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
1975x1134x35 mm
1762x1134x30 mm
1975x1134x35 mm vs 1762x1134x30 mm
Module area
2.240 m²
1.998 m²
0.242 m² apart
Weight
23.5 kg
21.0 kg
-2.5 kg for BDO 460
Weight per kWp
45.2 kg/kWp
45.7 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
108
96
12 cells apart
Bifacial
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#1,306
vs
#1,919
BBO 520 leads by 613 places
Power density
#1,328
vs
#1,876
BBO 520 leads by 548 places
Heat behaviour
#2,165
vs
#2,165
Tied - the same position in the database
Weight
#635
vs
#805
BBO 520 leads by 170 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#2,878
vs
#5,126
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 BBO 520 or Bisol BDO 460?
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 BBO 520 and Bisol BDO 460?
Bisol BBO 520 has a module efficiency of 23.20%, while Bisol BDO 460 is 23.00%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Bisol BBO 520 use vs Bisol BDO 460?
Bisol BBO 520 uses TOPCon cells; Bisol BDO 460 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 BBO 520 and Bisol BDO 460?
Bisol BBO 520 has a 30 years power warranty; Bisol BDO 460 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.