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BGO 570 vs BBO 500 9 of 19 identical Swap Change panels

Bisol BGO 570 vs Bisol BBO 500

Bisol
BGO 570
570 Wp 23.10 % TOPCon
Open panel page Datasheet PDF
VS
Bisol BBO 500
Bisol
BBO 500
500 Wp 22.30 % PERC
Open panel page Datasheet PDF
The verdict

BGO 570 leads on the differences that matter

The largest is module efficiency: 0.80 pp more efficient. 9 of 19 comparable parameters are identical.

See all 10 differences
How alike are they
9 of 19 comparable
parameters are identical
identical differs
01

What actually differs

10 of 19 parameters
Parameter BGO 570 BBO 500 Difference
Module efficiency 23.10 % 22.30 % 0.80 pp more efficient
Rated power 570 Wp 500 Wp 70 W more power
Power density 230.9 Wp/m² 223.2 Wp/m² 7.6 Wp/m² higher
Open-circuit voltage 44.70 V 39.60 V 5.10 V apart
Module area 2.469 m² 2.240 m² 0.229 m² apart
Weight 26.0 kg 23.5 kg 2.5 kg lighter
Cell technology TOPCon PERC TOPCon vs PERC
Voltage at max power 37.50 V 33.30 V 4.20 V apart
Cell count 120 108 12 cells apart
Dimensions 2177x1134x35 mm 1975x1134x35 mm 2177x1134x35 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.
BGO 570
19,392 kWh
BBO 500
17,011 kWh
Lifetime gap
2,381 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario BGO 570 BBO 500
Standard test conditions 25 °C 100.0% of rated power 570 W 500 W
Cool, bright day 40 °C 95.7% of rated power 545 W 478 W
Typical summer roof 55 °C 91.3% of rated power 520 W 457 W
Hot roof 70 °C 87.0% of rated power 496 W 435 W
03

Full specification

Parameter BGO 570 BBO 500 Difference
Power and efficiency
Rated power 570 Wp 500 Wp +70 W for BGO 570
Module efficiency 23.10 % 22.30 % +0.80 pp for BGO 570
Power density 230.9 Wp/m² 223.2 Wp/m² +7.6 Wp/m² for BGO 570
Open-circuit voltage 44.70 V 39.60 V 5.10 V apart
Voltage at max power 37.50 V 33.30 V 4.20 V apart
Short-circuit current 16.10 A 16.00 A Effectively the same
Current at max power 15.20 A 15.00 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 2177x1134x35 mm 1975x1134x35 mm 2177x1134x35 mm vs 1975x1134x35 mm
Module area 2.469 m² 2.240 m² 0.229 m² apart
Weight 26.0 kg 23.5 kg -2.5 kg for BBO 500
Weight per kWp 45.6 kg/kWp 47.0 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 PERC TOPCon vs PERC
Cell type Monocrystalline Monocrystalline Same
Cell count 120 108 12 cells apart
Bifacial No No Same
04

Against the whole database

14,005 panels
Efficiency
#1,570 vs #5,100
BGO 570 leads by 3,530 places
Power density
#1,637 vs #5,048
BGO 570 leads by 3,411 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#777 vs #1,450
BGO 570 leads by 673 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#1,703 vs #4,669
BGO 570 leads by 2,966 places
05

More useful comparisons

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Bisol BBO 500 vs Bisol BBO 520
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8 differences, the largest is rated power
06

Written summary

07

Questions about this pairing

Which panel is better: Bisol BGO 570 or Bisol BBO 500?
According to our database: Bisol BGO 570 has higher module efficiency (23.10% vs 22.30%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Bisol BGO 570 and Bisol BBO 500?
Bisol BGO 570 has a module efficiency of 23.10%, while Bisol BBO 500 is 22.30%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Bisol BGO 570 use vs Bisol BBO 500?
Bisol BGO 570 uses TOPCon cells; Bisol BBO 500 uses PERC. 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 BGO 570 and Bisol BBO 500?
Bisol BGO 570 has a 30 years power warranty; Bisol BBO 500 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.