Silfab SIL-410-BG vs Silfab SIL-430 BG+
VS
The verdict
430 BG+ leads on the differences that matter
The largest is rated power: 20 W more power. 12 of 19 comparable parameters are identical.
See all 7 differencesHow alike are they
12
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
7 of 19 parameters
What actually differs
Parameter
410-BG
430 BG+
Difference
Rated power
410 Wp
430 Wp
20 W more power
Module area
1.918 m²
2.014 m²
0.096 m² apart
Open-circuit voltage
45.92 V
47.96 V
2.04 V apart
Cell count
66
138
72 cells apart
Weight
20.8 kg
21.8 kg
1.0 kg lighter
Dimensions
1864x1029x35 mm
1957x1029x35 mm
1864x1029x35 mm vs 1957x1029x35 mm
Voltage at max power
38.08 V
39.83 V
1.75 V apart
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 (-0.377 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
410-BG
13,801 kWh
430 BG+
14,497 kWh
Lifetime gap
696 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
410-BG
430 BG+
Standard test conditions
25 °C
100.0% of rated power
410 W
430 W
Cool, bright day
40 °C
94.3% of rated power
387 W
406 W
Typical summer roof
55 °C
88.7% of rated power
364 W
381 W
Hot roof
70 °C
83.0% of rated power
340 W
357 W
03
Full specification
Parameter
410-BG
430 BG+
Difference
Power and efficiency
Rated power
410 Wp
430 Wp
+20 W for 430 BG+
Module efficiency
21.40 %
21.40 %
Same
Power density
213.8 Wp/m²
213.5 Wp/m²
Effectively the same
Open-circuit voltage
45.92 V
47.96 V
2.04 V apart
Voltage at max power
38.08 V
39.83 V
1.75 V apart
Short-circuit current
11.30 A
11.33 A
Effectively the same
Current at max power
10.77 A
10.80 A
Effectively the same
Temperature
Temperature coefficient
-0.377 %/°C
-0.377 %/°C
Same
Mechanical
Dimensions
1864x1029x35 mm
1957x1029x35 mm
1864x1029x35 mm vs 1957x1029x35 mm
Module area
1.918 m²
2.014 m²
0.096 m² apart
Weight
20.8 kg
21.8 kg
-1.0 kg for 410-BG
Weight per kWp
50.7 kg/kWp
50.7 kg/kWp
Same
Warranty and degradation
Product warranty
25 yrs
25 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.31 %/yr
0.30 %/yr
Effectively the same
Technology
Cell technology
PERC
PERC
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
66
138
72 cells apart
Bifacial
No
No
Same
04
14,129 panels
Against the whole database
Efficiency
#8,388
vs
#8,388
Tied - the same position in the database
Power density
#8,468
vs
#8,483
410-BG leads by 15 places
Heat behaviour
#13,470
vs
#13,470
Tied - the same position in the database
Weight
#4,154
vs
#4,136
430 BG+ leads by 18 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#9,073
vs
#8,367
430 BG+ leads by 706 places
05
Open the full database
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06
Written summary
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07
Questions about this pairing
Which panel is better: Silfab SIL-410-BG or Silfab SIL-430 BG+?
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 Silfab SIL-410-BG and Silfab SIL-430 BG+?
Silfab SIL-410-BG has a module efficiency of 21.40%, while Silfab SIL-430 BG+ is 21.40%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Silfab SIL-410-BG use vs Silfab SIL-430 BG+?
Silfab SIL-410-BG uses PERC cells; Silfab SIL-430 BG+ 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 Silfab SIL-410-BG and Silfab SIL-430 BG+?
Silfab SIL-410-BG has a 30 years power warranty; Silfab SIL-430 BG+ 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 2 Silfab 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.