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SPV660-TG12-132BD vs SPV675-TG12-132BD 15 of 18 identical Swap Change panels

Solaria SPV660-TG12-132BD vs Solaria SPV675-TG12-132BD

Solaria
SPV660-TG12-132BD
660 Wp 21.28 % TOPCon Bifacial Incomplete
Open panel page Datasheet PDF
VS
Solaria
SPV675-TG12-132BD
675 Wp 21.76 % TOPCon Bifacial Incomplete
Open panel page Datasheet PDF
The verdict

SPV675-TG12-132BD leads on the differences that matter

The largest is module efficiency: 0.48 pp more efficient. 15 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 3 differences
How alike are they
15 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

3 of 18 parameters
Parameter SPV660-TG12-132BD SPV675-TG12-132BD Difference
Module efficiency 21.28 % 21.76 % 0.48 pp more efficient
Power density 212.7 Wp/m² 217.6 Wp/m² 4.8 Wp/m² higher
Rated power 660 Wp 675 Wp 15 W more power
02

What it means on a roof

Thirty years of production
Declared first-year losses, with 0.40% a year afterwards assumed for both panels, 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.
SPV660-TG12-132BD
21,907 kWh
SPV675-TG12-132BD
22,405 kWh
Lifetime gap
498 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario SPV660-TG12-132BD SPV675-TG12-132BD
Standard test conditions 25 °C 100.0% of rated power 660 W 675 W
Cool, bright day 40 °C 95.5% of rated power 630 W 645 W
Typical summer roof 55 °C 91.0% of rated power 601 W 614 W
Hot roof 70 °C 86.5% of rated power 571 W 584 W
03

Full specification

Parameter SPV660-TG12-132BD SPV675-TG12-132BD Difference
Power and efficiency
Rated power 660 Wp 675 Wp +15 W for SPV675-TG12-132BD
Module efficiency 21.28 % 21.76 % +0.48 pp for SPV675-TG12-132BD
Power density 212.7 Wp/m² 217.6 Wp/m² +4.8 Wp/m² for SPV675-TG12-132BD
Open-circuit voltage 46.10 V 46.70 V Effectively the same
Voltage at max power 38.81 V 39.43 V Effectively the same
Short-circuit current 17.84 A 17.93 A Effectively the same
Current at max power 17.01 A 17.14 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 57.6 kg/kWp 56.3 kg/kWp Effectively the same
Warranty and degradation
Product warranty 12 yrs 12 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation - - Neither datasheet publishes this
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 132 132 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#8,795 vs #7,285
SPV675-TG12-132BD leads by 1,510 places
Power density
#8,718 vs #7,310
SPV675-TG12-132BD leads by 1,408 places
Heat behaviour
#6,093 vs #6,093
Tied - the same position in the database
Weight
#11,284 vs #10,556
SPV675-TG12-132BD leads by 728 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#3,149 vs #2,161
SPV675-TG12-132BD leads by 988 places
05

More useful comparisons

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06

Written summary

07

Questions about this pairing

Which panel is better: Solaria SPV660-TG12-132BD or Solaria SPV675-TG12-132BD?
According to our database: Solaria SPV675-TG12-132BD has higher module efficiency (21.76% vs 21.28%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Solaria SPV660-TG12-132BD and Solaria SPV675-TG12-132BD?
Solaria SPV660-TG12-132BD has a module efficiency of 21.28%, while Solaria SPV675-TG12-132BD is 21.76%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Solaria SPV660-TG12-132BD use vs Solaria SPV675-TG12-132BD?
Solaria SPV660-TG12-132BD uses TOPCon cells; Solaria SPV675-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 Solaria SPV660-TG12-132BD and Solaria SPV675-TG12-132BD?
Solaria SPV660-TG12-132BD has a 30 years power warranty; Solaria SPV675-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 Solaria SPV660-TG12-132BD and Solaria SPV675-TG12-132BD bifacial panels?
Both Solaria SPV660-TG12-132BD and Solaria SPV675-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.

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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.