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BG60(455) vs BGT66(720)-G12 4 of 19 identical Swap Change panels

Sunova TS-BG60(455) vs Sunova TS-BGT66(720)-G12

TS-BG60(455)
455 Wp 21.08 % PERC Bifacial
Open panel page Datasheet PDF
VS
TS-BGT66(720)-G12
720 Wp 23.20 % N-type Bifacial
Open panel page Datasheet PDF
The verdict

BGT66(720)-G12 leads on the differences that matter

The largest is module efficiency: 2.12 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 BG60(455) BGT66(720)-G12 Difference
Module efficiency 21.08 % 23.20 % 2.12 pp more efficient
Rated power 455 Wp 720 Wp 265 W more power
Power density 210.8 Wp/m² 231.8 Wp/m² 20.9 Wp/m² higher
Temperature coefficient -0.330 %/°C -0.300 %/°C 0.030 %/°C better in heat
Weight 26.3 kg 37.8 kg 11.5 kg lighter
Open-circuit voltage 41.65 V 49.40 V 7.75 V apart
Short-circuit current 13.54 A 18.48 A 4.94 A apart
Module area 2.158 m² 3.106 m² 0.948 m² apart
Weight per kWp 57.8 kg/kWp 52.5 kg/kWp 5.3 kg/kWp lighter
Cell technology PERC N-type PERC vs N-type
Voltage at max power 34.78 V 41.30 V 6.52 V apart
Current at max power 13.09 A 17.42 A 4.33 A apart
Cell count 120 132 12 cells apart
Annual degradation 0.45 %/yr 0.40 %/yr 0.05 %/yr slower
Dimensions 1903x1134x35 mm 2384x1303x35 mm 1903x1134x35 mm vs 2384x1303x35 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
BG60(455)
14,984 kWh
BGT66(720)-G12
24,157 kWh
Lifetime gap
9,173 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario BG60(455) BGT66(720)-G12
Standard test conditions 25 °C 100.0% of rated power 455 W 720 W
Cool, bright day 40 °C 95.0% of rated power 432 W 688 W
Typical summer roof 55 °C 90.1% of rated power 410 W 655 W
Hot roof 70 °C 85.2% of rated power 387 W 623 W
03

Full specification

Parameter BG60(455) BGT66(720)-G12 Difference
Power and efficiency
Rated power 455 Wp 720 Wp +265 W for BGT66(720)-G12
Module efficiency 21.08 % 23.20 % +2.12 pp for BGT66(720)-G12
Power density 210.8 Wp/m² 231.8 Wp/m² +20.9 Wp/m² for BGT66(720)-G12
Open-circuit voltage 41.65 V 49.40 V 7.75 V apart
Voltage at max power 34.78 V 41.30 V 6.52 V apart
Short-circuit current 13.54 A 18.48 A 4.94 A apart
Current at max power 13.09 A 17.42 A 4.33 A apart
Temperature
Temperature coefficient -0.330 %/°C -0.300 %/°C +0.030 %/°C for BGT66(720)-G12
Mechanical
Dimensions 1903x1134x35 mm 2384x1303x35 mm 1903x1134x35 mm vs 2384x1303x35 mm
Module area 2.158 m² 3.106 m² 0.948 m² apart
Weight 26.3 kg 37.8 kg -11.5 kg for BG60(455)
Weight per kWp 57.8 kg/kWp 52.5 kg/kWp -5.3 kg/kWp for BGT66(720)-G12
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.45 %/yr 0.40 %/yr -0.05 %/yr for BGT66(720)-G12
Technology
Cell technology PERC N-type PERC vs N-type
Cell type Monocrystalline Monocrystalline Same
Cell count 120 132 12 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#9,586 vs #1,306
BGT66(720)-G12 leads by 8,280 places
Power density
#9,534 vs #1,347
BGT66(720)-G12 leads by 8,187 places
Heat behaviour
#8,545 vs #6,093
BGT66(720)-G12 leads by 2,452 places
Weight
#11,423 vs #6,043
BGT66(720)-G12 leads by 5,380 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#9,823 vs #339
BGT66(720)-G12 leads by 9,484 places
05

More useful comparisons

Open the full database
Same series, other bin
Sunova TS-BG60(455) vs Sunova TS-BG60(460)
One difference: module efficiency
Same series, other bin
Sunova TS-BG60(455) vs Sunova TS-BG60(450)
One difference: module efficiency
Same series, other bin
Sunova TS-BG60(455) vs Sunova TS-BG60(445)
3 differences, the largest is module efficiency
Same series, other bin
Sunova TS-BGT66(720)-G12 vs Sunova TS-BGT66(715)-G12
One difference: module efficiency
Same series, other bin
Sunova TS-BGT66(720)-G12 vs Sunova TS-BGT66(710)-G12
3 differences, the largest is module efficiency
Same series, other bin
Sunova TS-BGT66(720)-G12 vs Sunova TS-BGT66(705)-G12
3 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Sunova TS-BG60(455) or Sunova TS-BGT66(720)-G12?
According to our database: Sunova TS-BGT66(720)-G12 has higher module efficiency (23.20% vs 21.08%); Sunova TS-BGT66(720)-G12 tolerates heat better (temp coeff -0.300%/°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-BG60(455) and Sunova TS-BGT66(720)-G12?
Sunova TS-BG60(455) has a module efficiency of 21.08%, while Sunova TS-BGT66(720)-G12 is 23.20%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Sunova TS-BG60(455) use vs Sunova TS-BGT66(720)-G12?
Sunova TS-BG60(455) uses PERC cells; Sunova TS-BGT66(720)-G12 uses N-type. 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-BG60(455) and Sunova TS-BGT66(720)-G12?
Sunova TS-BG60(455) has a 30 years power warranty; Sunova TS-BGT66(720)-G12 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-BG60(455) and Sunova TS-BGT66(720)-G12 bifacial panels?
Both Sunova TS-BG60(455) and Sunova TS-BGT66(720)-G12 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.