SPV665-TG12-132BD vs SPV680-TG12-132BD 15 of 18 identical Swap Change panels

Solaria SPV665-TG12-132BD vs Solaria SPV680-TG12-132BD

Q: Which panel is better: Solaria SPV665-TG12-132BD or Solaria SPV680-TG12-132BD?

According to our database: Solaria SPV680-TG12-132BD has higher module efficiency (21.92% vs 21.44%). See the full spec comparison and 30-year energy simulation above for a complete picture.

Q: What is the efficiency of Solaria SPV665-TG12-132BD and Solaria SPV680-TG12-132BD?

Solaria SPV665-TG12-132BD has a module efficiency of 21.44%, while Solaria SPV680-TG12-132BD is 21.92%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Solaria SPV665-TG12-132BD use vs Solaria SPV680-TG12-132BD?

Solaria SPV665-TG12-132BD uses TOPCon cells; Solaria SPV680-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.

Q: What is the warranty on Solaria SPV665-TG12-132BD and Solaria SPV680-TG12-132BD?

Solaria SPV665-TG12-132BD has a 30 years power warranty; Solaria SPV680-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.

Q: Are Solaria SPV665-TG12-132BD and Solaria SPV680-TG12-132BD bifacial panels?

Both Solaria SPV665-TG12-132BD and Solaria SPV680-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.

Solaria

SPV665-TG12-132BD

665 Wp 21.44 % TOPCon Bifacial Incomplete

Open panel page Datasheet PDF

Solaria

SPV680-TG12-132BD

680 Wp 21.92 % TOPCon Bifacial Incomplete

Open panel page Datasheet PDF

The verdict

SPV680-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

What actually differs

3 of 18 parameters

Parameter SPV665-TG12-132BD SPV680-TG12-132BD Difference

Module efficiency 21.44 % 21.92 % 0.48 pp more efficient

Power density 214.3 Wp/m² 219.2 Wp/m² 4.8 Wp/m² higher

Rated power 665 Wp 680 Wp 15 W more power

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

Cell temperature

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.

SPV665-TG12-132BD

22,073 kWh

SPV680-TG12-132BD

22,571 kWh

Lifetime gap

498 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario SPV665-TG12-132BD SPV680-TG12-132BD

Standard test conditions 25 °C 100.0% of rated power 665 W 680 W

Cool, bright day 40 °C 95.5% of rated power 635 W 649 W

Typical summer roof 55 °C 91.0% of rated power 605 W 619 W

Hot roof 70 °C 86.5% of rated power 575 W 588 W

Full specification

Parameter SPV665-TG12-132BD SPV680-TG12-132BD Difference

Power and efficiency

Rated power 665 Wp 680 Wp +15 W for SPV680-TG12-132BD

Module efficiency 21.44 % 21.92 % +0.48 pp for SPV680-TG12-132BD

Power density 214.3 Wp/m² 219.2 Wp/m² +4.8 Wp/m² for SPV680-TG12-132BD

Open-circuit voltage 46.30 V 46.90 V Effectively the same

Voltage at max power 39.00 V 39.63 V Effectively the same

Short-circuit current 17.87 A 17.96 A Effectively the same

Current at max power 17.06 A 17.18 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 57.1 kg/kWp 55.9 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

Against the whole database

14,005 panels

Efficiency

#8,267 vs #6,767

SPV680-TG12-132BD leads by 1,500 places

Power density

#8,232 vs #6,738

SPV680-TG12-132BD leads by 1,494 places

Heat behaviour

#6,093 vs #6,093

Tied - the same position in the database

Weight

#11,052 vs #10,244

SPV680-TG12-132BD leads by 808 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#2,776 vs #1,903

SPV680-TG12-132BD leads by 873 places

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Written summary

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Questions about this pairing

Which panel is better: Solaria SPV665-TG12-132BD or Solaria SPV680-TG12-132BD?

According to our database: Solaria SPV680-TG12-132BD has higher module efficiency (21.92% vs 21.44%). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of Solaria SPV665-TG12-132BD and Solaria SPV680-TG12-132BD?

Solaria SPV665-TG12-132BD has a module efficiency of 21.44%, while Solaria SPV680-TG12-132BD is 21.92%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does Solaria SPV665-TG12-132BD use vs Solaria SPV680-TG12-132BD?

Solaria SPV665-TG12-132BD uses TOPCon cells; Solaria SPV680-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 SPV665-TG12-132BD and Solaria SPV680-TG12-132BD?

Solaria SPV665-TG12-132BD has a 30 years power warranty; Solaria SPV680-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 SPV665-TG12-132BD and Solaria SPV680-TG12-132BD bifacial panels?

Both Solaria SPV665-TG12-132BD and Solaria SPV680-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.

Shop prices: See 1 Solaria offer

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.