SpolarPV SPV675-TG12-132BD vs SpolarPV SPV665-TG12-132BD
VS
The verdict
SPV675-TG12-132BD leads on the differences that matter
The largest is module efficiency: 0.32 pp more efficient. 16 of 19 comparable parameters are identical.
See all 3 differencesHow alike are they
16
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
3 of 19 parameters
What actually differs
Parameter
SPV675-TG12-132BD
SPV665-TG12-132BD
Difference
Module efficiency
21.76 %
21.44 %
0.32 pp more efficient
Power density
217.6 Wp/m²
214.3 Wp/m²
3.2 Wp/m² higher
Rated power
675 Wp
665 Wp
10 W more power
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 (-0.300 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
SPV675-TG12-132BD
22,211 kWh
SPV665-TG12-132BD
21,882 kWh
Lifetime gap
329 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
SPV675-TG12-132BD
SPV665-TG12-132BD
Standard test conditions
25 °C
100.0% of rated power
675 W
665 W
Cool, bright day
40 °C
95.5% of rated power
645 W
635 W
Typical summer roof
55 °C
91.0% of rated power
614 W
605 W
Hot roof
70 °C
86.5% of rated power
584 W
575 W
03
Full specification
Parameter
SPV675-TG12-132BD
SPV665-TG12-132BD
Difference
Power and efficiency
Rated power
675 Wp
665 Wp
+10 W for SPV675-TG12-132BD
Module efficiency
21.76 %
21.44 %
+0.32 pp for SPV675-TG12-132BD
Power density
217.6 Wp/m²
214.3 Wp/m²
+3.2 Wp/m² for SPV675-TG12-132BD
Open-circuit voltage
46.70 V
46.30 V
Effectively the same
Voltage at max power
39.43 V
39.00 V
Effectively the same
Short-circuit current
17.93 A
17.87 A
Effectively the same
Current at max power
17.14 A
17.06 A
Effectively the same
Temperature
Temperature coefficient
-0.300 %/°C
-0.300 %/°C
Same
Mechanical
Dimensions
2383x1302x30 mm
2383x1302x30 mm
Same
Module area
3.103 m²
3.103 m²
Same
Weight
38.0 kg
38.0 kg
Same
Weight per kWp
56.3 kg/kWp
57.1 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
12 yrs
12 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.46 %/yr
0.46 %/yr
Same
Technology
Cell technology
TOPCon
TOPCon
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
132
132
Same
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#7,285
vs
#8,267
SPV675-TG12-132BD leads by 982 places
Power density
#7,310
vs
#8,232
SPV675-TG12-132BD leads by 922 places
Heat behaviour
#6,093
vs
#6,093
Tied - the same position in the database
Weight
#10,556
vs
#11,052
SPV675-TG12-132BD leads by 496 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#2,161
vs
#2,776
SPV675-TG12-132BD leads by 615 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: SpolarPV SPV675-TG12-132BD or SpolarPV SPV665-TG12-132BD?
According to our database: SpolarPV SPV675-TG12-132BD has higher module efficiency (21.76% vs 21.44%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of SpolarPV SPV675-TG12-132BD and SpolarPV SPV665-TG12-132BD?
SpolarPV SPV675-TG12-132BD has a module efficiency of 21.76%, while SpolarPV SPV665-TG12-132BD is 21.44%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does SpolarPV SPV675-TG12-132BD use vs SpolarPV SPV665-TG12-132BD?
SpolarPV SPV675-TG12-132BD uses TOPCon cells; SpolarPV SPV665-TG12-132BD 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 SpolarPV SPV675-TG12-132BD and SpolarPV SPV665-TG12-132BD?
SpolarPV SPV675-TG12-132BD has a 30 years power warranty; SpolarPV SPV665-TG12-132BD 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.
Are SpolarPV SPV675-TG12-132BD and SpolarPV SPV665-TG12-132BD bifacial panels?
Both SpolarPV SPV675-TG12-132BD and SpolarPV SPV665-TG12-132BD are bifacial - they capture reflected light from the ground, which can add 5-15% more annual energy on ground-mount or elevated rooftop installations with a light surface beneath.
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.