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BBO 500 vs BGO 580 8 of 19 identical Swap Change panels

Bisol BBO 500 vs Bisol BGO 580

Bisol BBO 500
Bisol
BBO 500
500 Wp 22.30 % PERC
Open panel page Datasheet PDF
VS
Bisol
BGO 580
580 Wp 23.50 % TOPCon
Open panel page Datasheet PDF
The verdict

BGO 580 leads on the differences that matter

The largest is module efficiency: 1.20 pp more efficient. 8 of 19 comparable parameters are identical.

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

What actually differs

11 of 19 parameters
Parameter BBO 500 BGO 580 Difference
Module efficiency 22.30 % 23.50 % 1.20 pp more efficient
Rated power 500 Wp 580 Wp 80 W more power
Power density 223.2 Wp/m² 234.9 Wp/m² 11.7 Wp/m² higher
Open-circuit voltage 39.60 V 45.20 V 5.60 V apart
Module area 2.240 m² 2.469 m² 0.229 m² apart
Weight 23.5 kg 26.0 kg 2.5 kg lighter
Cell technology PERC TOPCon PERC vs TOPCon
Voltage at max power 33.30 V 37.70 V 4.40 V apart
Cell count 108 120 12 cells apart
Weight per kWp 47.0 kg/kWp 44.8 kg/kWp 2.2 kg/kWp lighter
Dimensions 1975x1134x35 mm 2177x1134x35 mm 1975x1134x35 mm vs 2177x1134x35 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 500
17,011 kWh
BGO 580
19,733 kWh
Lifetime gap
2,722 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario BBO 500 BGO 580
Standard test conditions 25 °C 100.0% of rated power 500 W 580 W
Cool, bright day 40 °C 95.7% of rated power 478 W 555 W
Typical summer roof 55 °C 91.3% of rated power 457 W 530 W
Hot roof 70 °C 87.0% of rated power 435 W 504 W
03

Full specification

Parameter BBO 500 BGO 580 Difference
Power and efficiency
Rated power 500 Wp 580 Wp +80 W for BGO 580
Module efficiency 22.30 % 23.50 % +1.20 pp for BGO 580
Power density 223.2 Wp/m² 234.9 Wp/m² +11.7 Wp/m² for BGO 580
Open-circuit voltage 39.60 V 45.20 V 5.60 V apart
Voltage at max power 33.30 V 37.70 V 4.40 V apart
Short-circuit current 16.00 A 16.20 A Effectively the same
Current at max power 15.00 A 15.40 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 1975x1134x35 mm 2177x1134x35 mm 1975x1134x35 mm vs 2177x1134x35 mm
Module area 2.240 m² 2.469 m² 0.229 m² apart
Weight 23.5 kg 26.0 kg -2.5 kg for BBO 500
Weight per kWp 47.0 kg/kWp 44.8 kg/kWp -2.2 kg/kWp for BGO 580
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 PERC TOPCon PERC vs TOPCon
Cell type Monocrystalline Monocrystalline Same
Cell count 108 120 12 cells apart
Bifacial No No Same
04

Against the whole database

14,005 panels
Efficiency
#5,100 vs #716
BGO 580 leads by 4,384 places
Power density
#5,048 vs #848
BGO 580 leads by 4,200 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#1,450 vs #542
BGO 580 leads by 908 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#4,669 vs #1,317
BGO 580 leads by 3,352 places
05

More useful comparisons

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06

Written summary

07

Questions about this pairing

Which panel is better: Bisol BBO 500 or Bisol BGO 580?
According to our database: Bisol BGO 580 has higher module efficiency (23.50% vs 22.30%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Bisol BBO 500 and Bisol BGO 580?
Bisol BBO 500 has a module efficiency of 22.30%, while Bisol BGO 580 is 23.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Bisol BBO 500 use vs Bisol BGO 580?
Bisol BBO 500 uses PERC cells; Bisol BGO 580 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 500 and Bisol BGO 580?
Bisol BBO 500 has a 30 years power warranty; Bisol BGO 580 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.