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BWT66(715)-G12 vs BG60(450) 4 of 19 identical Swap Change panels

Sunova TS-BWT66(715)-G12 vs Sunova TS-BG60(450)

TS-BWT66(715)-G12
715 Wp 23.00 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
TS-BG60(450)
450 Wp 20.85 % PERC Bifacial
Open panel page Datasheet PDF
The verdict

BWT66(715)-G12 leads on the differences that matter

The largest is module efficiency: 2.15 pp more efficient. 4 of 19 comparable parameters are identical.

See all 15 differences
How alike are they
4 of 19 comparable
parameters are identical
identical differs
01

What actually differs

15 of 19 parameters
Parameter BWT66(715)-G12 BG60(450) Difference
Module efficiency 23.00 % 20.85 % 2.15 pp more efficient
Temperature coefficient -0.290 %/°C -0.330 %/°C 0.040 %/°C better in heat
Rated power 715 Wp 450 Wp 265 W more power
Power density 230.2 Wp/m² 208.5 Wp/m² 21.6 Wp/m² higher
Weight 33.9 kg 26.3 kg 7.6 kg lighter
Weight per kWp 47.4 kg/kWp 58.4 kg/kWp 11.0 kg/kWp lighter
Open-circuit voltage 46.68 V 41.46 V 5.22 V apart
Short-circuit current 18.92 A 13.47 A 5.45 A apart
Module area 3.106 m² 2.158 m² 0.948 m² apart
Cell technology TOPCon PERC TOPCon vs PERC
Voltage at max power 40.35 V 34.62 V 5.73 V apart
Current at max power 17.72 A 13.01 A 4.71 A apart
Cell count 132 120 12 cells apart
Annual degradation 0.40 %/yr 0.45 %/yr 0.05 %/yr slower
Dimensions 2384x1303x35 mm 1903x1134x35 mm 2384x1303x35 mm vs 1903x1134x35 mm
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
BWT66(715)-G12
23,990 kWh
BG60(450)
14,819 kWh
Lifetime gap
9,171 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario BWT66(715)-G12 BG60(450)
Standard test conditions 25 °C 100.0% of rated power 715 W 450 W
Cool, bright day 40 °C 95.0% of rated power 684 W 428 W
Typical summer roof 55 °C 90.1% of rated power 653 W 405 W
Hot roof 70 °C 85.2% of rated power 622 W 383 W
03

Full specification

Parameter BWT66(715)-G12 BG60(450) Difference
Power and efficiency
Rated power 715 Wp 450 Wp +265 W for BWT66(715)-G12
Module efficiency 23.00 % 20.85 % +2.15 pp for BWT66(715)-G12
Power density 230.2 Wp/m² 208.5 Wp/m² +21.6 Wp/m² for BWT66(715)-G12
Open-circuit voltage 46.68 V 41.46 V 5.22 V apart
Voltage at max power 40.35 V 34.62 V 5.73 V apart
Short-circuit current 18.92 A 13.47 A 5.45 A apart
Current at max power 17.72 A 13.01 A 4.71 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.330 %/°C +0.040 %/°C for BWT66(715)-G12
Mechanical
Dimensions 2384x1303x35 mm 1903x1134x35 mm 2384x1303x35 mm vs 1903x1134x35 mm
Module area 3.106 m² 2.158 m² 0.948 m² apart
Weight 33.9 kg 26.3 kg -7.6 kg for BG60(450)
Weight per kWp 47.4 kg/kWp 58.4 kg/kWp -11.0 kg/kWp for BWT66(715)-G12
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.45 %/yr -0.05 %/yr for BWT66(715)-G12
Technology
Cell technology TOPCon PERC TOPCon vs PERC
Cell type Monocrystalline Monocrystalline Same
Cell count 132 120 12 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#1,919 vs #10,362
BWT66(715)-G12 leads by 8,443 places
Power density
#2,018 vs #10,339
BWT66(715)-G12 leads by 8,321 places
Heat behaviour
#2,165 vs #8,545
BWT66(715)-G12 leads by 6,380 places
Weight
#1,670 vs #11,731
BWT66(715)-G12 leads by 10,061 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#434 vs #10,128
BWT66(715)-G12 leads by 9,694 places
05

More useful comparisons

Open the full database
Same series, other bin
Sunova TS-BWT66(715)-G12 vs Sunova TS-BGT66(720)-G12
6 differences, the largest is weight
Same series, other bin
Sunova TS-BWT66(715)-G12 vs Sunova TS-BWT66(720)-G12
One difference: module efficiency
Same series, other bin
Sunova TS-BWT66(715)-G12 vs Sunova TS-BGT66(715)-G12
5 differences, the largest is weight
Same series, other bin
Sunova TS-BWT66(715)-G12 vs Sunova TS-BGT66(710)-G12
6 differences, the largest is weight
Same series, other bin
Sunova TS-BWT66(715)-G12 vs Sunova TS-BWT66(710)-G12
The same specification on paper
Same series, other bin
Sunova TS-BWT66(715)-G12 vs Sunova TS-BGT66(705)-G12
9 differences, the largest is weight
06

Written summary

07

Questions about this pairing

Which panel is better: Sunova TS-BWT66(715)-G12 or Sunova TS-BG60(450)?
According to our database: Sunova TS-BWT66(715)-G12 has higher module efficiency (23.00% vs 20.85%); Sunova TS-BWT66(715)-G12 tolerates heat better (temp coeff -0.290%/°C vs -0.330%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Sunova TS-BWT66(715)-G12 and Sunova TS-BG60(450)?
Sunova TS-BWT66(715)-G12 has a module efficiency of 23.00%, while Sunova TS-BG60(450) is 20.85%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Sunova TS-BWT66(715)-G12 use vs Sunova TS-BG60(450)?
Sunova TS-BWT66(715)-G12 uses TOPCon cells; Sunova TS-BG60(450) 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 Sunova TS-BWT66(715)-G12 and Sunova TS-BG60(450)?
Sunova TS-BWT66(715)-G12 has a 30 years power warranty; Sunova TS-BG60(450) 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 Sunova TS-BWT66(715)-G12 and Sunova TS-BG60(450) bifacial panels?
Both Sunova TS-BWT66(715)-G12 and Sunova TS-BG60(450) 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.