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615TGB/132TS vs 705TGB/132TS 12 of 18 identical Swap Change panels

Axitec AC-615TGB/132TS vs Axitec AC-705TGB/132TS

Axitec AC-615TGB/132TS
Axitec
AC-615TGB/132TS
615 Wp 22.77 % TOPCon Bifacial Incomplete
Open panel page Datasheet PDF
VS
Axitec
AC-705TGB/132TS
705 Wp 22.70 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

6 differences, and they point both ways

The largest is rated power: 90 W more power. 12 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 6 differences
How alike are they
12 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

6 of 18 parameters
Parameter 615TGB/132TS 705TGB/132TS Difference
Rated power 615 Wp 705 Wp 90 W more power
Weight 32.5 kg 38.0 kg 5.5 kg lighter
Short-circuit current 16.19 A 18.47 A 2.28 A apart
Module area 2.701 m² 3.106 m² 0.405 m² apart
Current at max power 15.22 A 17.36 A 2.14 A apart
Dimensions 2382x1134x30 mm 2384x1303x35 mm 2382x1134x30 mm vs 2384x1303x35 mm
02

What it means on a roof

Thirty years of production
A 1.0% first-year loss then 0.40% a year, assumed for both panels, at 1,200 kWh/kWp a year
Same temp coeff. for both panels (-0.310 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
615TGB/132TS
20,634 kWh
705TGB/132TS
23,654 kWh
Lifetime gap
3,020 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 615TGB/132TS 705TGB/132TS
Standard test conditions 25 °C 100.0% of rated power 615 W 705 W
Cool, bright day 40 °C 95.3% of rated power 586 W 672 W
Typical summer roof 55 °C 90.7% of rated power 558 W 639 W
Hot roof 70 °C 86.0% of rated power 529 W 607 W
03

Full specification

Parameter 615TGB/132TS 705TGB/132TS Difference
Power and efficiency
Rated power 615 Wp 705 Wp +90 W for 705TGB/132TS
Module efficiency 22.77 % 22.70 % Effectively the same
Power density 227.7 Wp/m² 227.0 Wp/m² Effectively the same
Open-circuit voltage 48.10 V 48.32 V Effectively the same
Voltage at max power 40.42 V 40.62 V Effectively the same
Short-circuit current 16.19 A 18.47 A 2.28 A apart
Current at max power 15.22 A 17.36 A 2.14 A apart
Temperature
Temperature coefficient -0.310 %/°C -0.310 %/°C Same
Mechanical
Dimensions 2382x1134x30 mm 2384x1303x35 mm 2382x1134x30 mm vs 2384x1303x35 mm
Module area 2.701 m² 3.106 m² 0.405 m² apart
Weight 32.5 kg 38.0 kg -5.5 kg for 615TGB/132TS
Weight per kWp 52.8 kg/kWp 53.9 kg/kWp Effectively the same
Warranty and degradation
Product warranty 30 yrs 30 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation - 0.40 %/yr Not published by Axitec
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
#3,073 vs #3,307
615TGB/132TS leads by 234 places
Power density
#3,077 vs #3,361
615TGB/132TS leads by 284 places
Heat behaviour
#8,005 vs #8,005
Tied - the same position in the database
Weight
#6,546 vs #8,027
615TGB/132TS leads by 1,481 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#725 vs #83
705TGB/132TS leads by 642 places
05

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06

Written summary

07

Questions about this pairing

Which panel is better: Axitec AC-615TGB/132TS or Axitec AC-705TGB/132TS?
According to our database: Axitec AC-615TGB/132TS has higher module efficiency (22.77% vs 22.70%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Axitec AC-615TGB/132TS and Axitec AC-705TGB/132TS?
Axitec AC-615TGB/132TS has a module efficiency of 22.77%, while Axitec AC-705TGB/132TS is 22.70%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Axitec AC-615TGB/132TS use vs Axitec AC-705TGB/132TS?
Axitec AC-615TGB/132TS uses TOPCon cells; Axitec AC-705TGB/132TS 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 Axitec AC-615TGB/132TS and Axitec AC-705TGB/132TS?
Axitec AC-615TGB/132TS has a 30 years power warranty; Axitec AC-705TGB/132TS 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 Axitec AC-615TGB/132TS and Axitec AC-705TGB/132TS bifacial panels?
Both Axitec AC-615TGB/132TS and Axitec AC-705TGB/132TS 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 4 Axitec offers

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.