Skip to main content
SPV700-TG12-132BD vs SPV665-TG12-132BD 13 of 19 identical Swap Change panels

SpolarPV SPV700-TG12-132BD vs SpolarPV SPV665-TG12-132BD

SpolarPV SPV700-TG12-132BD
SpolarPV
SPV700-TG12-132BD
700 Wp 22.57 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
SpolarPV
SPV665-TG12-132BD
665 Wp 21.44 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

SPV700-TG12-132BD leads on the differences that matter

The largest is module efficiency: 1.13 pp more efficient. 13 of 19 comparable parameters are identical.

See all 6 differences
How alike are they
13 of 19 comparable
parameters are identical
identical differs
01

What actually differs

6 of 19 parameters
Parameter SPV700-TG12-132BD SPV665-TG12-132BD Difference
Module efficiency 22.57 % 21.44 % 1.13 pp more efficient
Power density 225.6 Wp/m² 214.3 Wp/m² 11.3 Wp/m² higher
Rated power 700 Wp 665 Wp 35 W more power
Weight per kWp 54.3 kg/kWp 57.1 kg/kWp 2.9 kg/kWp lighter
Open-circuit voltage 48.25 V 46.30 V 1.95 V apart
Voltage at max power 40.48 V 39.00 V 1.48 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 (-0.300 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
SPV700-TG12-132BD
23,033 kWh
SPV665-TG12-132BD
21,882 kWh
Lifetime gap
1,151 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario SPV700-TG12-132BD SPV665-TG12-132BD
Standard test conditions 25 °C 100.0% of rated power 700 W 665 W
Cool, bright day 40 °C 95.5% of rated power 669 W 635 W
Typical summer roof 55 °C 91.0% of rated power 637 W 605 W
Hot roof 70 °C 86.5% of rated power 606 W 575 W
03

Full specification

Parameter SPV700-TG12-132BD SPV665-TG12-132BD Difference
Power and efficiency
Rated power 700 Wp 665 Wp +35 W for SPV700-TG12-132BD
Module efficiency 22.57 % 21.44 % +1.13 pp for SPV700-TG12-132BD
Power density 225.6 Wp/m² 214.3 Wp/m² +11.3 Wp/m² for SPV700-TG12-132BD
Open-circuit voltage 48.25 V 46.30 V 1.95 V apart
Voltage at max power 40.48 V 39.00 V 1.48 V apart
Short-circuit current 18.35 A 17.87 A Effectively the same
Current at max power 17.31 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 54.3 kg/kWp 57.1 kg/kWp -2.9 kg/kWp for SPV700-TG12-132BD
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

Against the whole database

14,005 panels
Efficiency
#3,882 vs #8,267
SPV700-TG12-132BD leads by 4,385 places
Power density
#3,863 vs #8,232
SPV700-TG12-132BD leads by 4,369 places
Heat behaviour
#6,093 vs #6,093
Tied - the same position in the database
Weight
#8,524 vs #11,052
SPV700-TG12-132BD leads by 2,528 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#1,158 vs #2,776
SPV700-TG12-132BD leads by 1,618 places
05

More useful comparisons

Open the full database
Same series, other bin
SpolarPV
SpolarPV SPV700-TG12-132BD vs SpolarPV SPV695-TG12-132BD
The same specification on paper
Same series, other bin
SpolarPV
SpolarPV SPV700-TG12-132BD vs SpolarPV SPV690-TG12-132BD
3 differences, the largest is module efficiency
Same series, other bin
SpolarPV
SpolarPV SPV700-TG12-132BD vs SpolarPV SPV685-TG12-132BD
3 differences, the largest is module efficiency
Same series, other bin
SpolarPV
SpolarPV SPV665-TG12-132BD vs SpolarPV SPV680-TG12-132BD
3 differences, the largest is module efficiency
Same series, other bin
SpolarPV
SpolarPV SPV665-TG12-132BD vs SpolarPV SPV675-TG12-132BD
3 differences, the largest is module efficiency
Same series, other bin
SpolarPV
SpolarPV SPV665-TG12-132BD vs SpolarPV SPV670-TG12-132BD
The same specification on paper
06

Written summary

07

Questions about this pairing

Which panel is better: SpolarPV SPV700-TG12-132BD or SpolarPV SPV665-TG12-132BD?
According to our database: SpolarPV SPV700-TG12-132BD has higher module efficiency (22.57% vs 21.44%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of SpolarPV SPV700-TG12-132BD and SpolarPV SPV665-TG12-132BD?
SpolarPV SPV700-TG12-132BD has a module efficiency of 22.57%, 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 SPV700-TG12-132BD use vs SpolarPV SPV665-TG12-132BD?
SpolarPV SPV700-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 SPV700-TG12-132BD and SpolarPV SPV665-TG12-132BD?
SpolarPV SPV700-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 SPV700-TG12-132BD and SpolarPV SPV665-TG12-132BD bifacial panels?
Both SpolarPV SPV700-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.