2.2 715 vs 1.2 FullBlack 280W 6 of 19 identical Swap Change panels

Heckert Solar ZEUS 2.2 715 vs Heckert Solar ZEUS 1.2 FullBlack 280W

Q: What is the efficiency of Heckert Solar ZEUS 2.2 715 and Heckert Solar ZEUS 1.2 FullBlack 280W?

Heckert Solar ZEUS 2.2 715 has a module efficiency of 23.00%, while Heckert Solar ZEUS 1.2 FullBlack 280W is 23.31%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

Q: What cell technology does Heckert Solar ZEUS 2.2 715 use vs Heckert Solar ZEUS 1.2 FullBlack 280W?

Heckert Solar ZEUS 2.2 715 uses TOPCon cells; Heckert Solar ZEUS 1.2 FullBlack 280W uses Back Contact. 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 Heckert Solar ZEUS 2.2 715 and Heckert Solar ZEUS 1.2 FullBlack 280W?

Heckert Solar ZEUS 2.2 715 has a 30 years power warranty; Heckert Solar ZEUS 1.2 FullBlack 280W 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 Heckert Solar ZEUS 2.2 715 and Heckert Solar ZEUS 1.2 FullBlack 280W bifacial panels?

Both Heckert Solar ZEUS 2.2 715 and Heckert Solar ZEUS 1.2 FullBlack 280W 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.

Heckert Solar

ZEUS 2.2 715

715 Wp 23.00 % TOPCon Bifacial

Open panel page

Heckert Solar

ZEUS 1.2 FullBlack 280W

280 Wp 23.31 % Back Contact Bifacial

Open panel page

The verdict

1.2 FullBlack 280W leads on the differences that matter

The largest is rated power: 435 W more power. 6 of 19 comparable parameters are identical.

See all 13 differences

How alike are they

6 of 19 comparable
parameters are identical

identical differs

What actually differs

13 of 19 parameters

Parameter 2.2 715 1.2 FullBlack 280W Difference

Rated power 715 Wp 280 Wp 435 W more power

Weight 37.9 kg 14.3 kg 23.6 kg lighter

Product warranty 12 yrs 30 yrs 18 yrs longer

Temperature coefficient -0.280 %/°C -0.260 %/°C 0.020 %/°C better in heat

Open-circuit voltage 49.11 V 24.11 V 25.00 V apart

Short-circuit current 18.50 A 14.72 A 3.78 A apart

Module area 3.106 m² 1.201 m² 1.905 m² apart

Module efficiency 23.00 % 23.31 % 0.31 pp more efficient

Cell technology TOPCon Back Contact TOPCon vs Back Contact

Voltage at max power 40.86 V 20.49 V 20.37 V apart

Current at max power 17.50 A 13.67 A 3.83 A apart

Cell count 132 64 68 cells apart

Dimensions 2384x1303x33 mm 1560x770x35 mm 2384x1303x33 mm vs 1560x770x35 mm

What it means on a roof

Thirty years of production

Each panel's own declared degradation curve, at 1,200 kWh/kWp a year

Cell temperature

2.2 715

23,546 kWh

1.2 FullBlack 280W

9,221 kWh

Lifetime gap

14,325 kWh

Output when it is hot

Rated power carried across the range a module actually sees

Scenario 2.2 715 1.2 FullBlack 280W

Standard test conditions 25 °C 100.0% of rated power 715 W 280 W

Cool, bright day 40 °C 95.8% of rated power 685 W 269 W

Typical summer roof 55 °C 91.6% of rated power 655 W 258 W

Hot roof 70 °C 87.4% of rated power 625 W 247 W

Full specification

Parameter 2.2 715 1.2 FullBlack 280W Difference

Power and efficiency

Rated power 715 Wp 280 Wp +435 W for 2.2 715

Module efficiency 23.00 % 23.31 % +0.31 pp for 1.2 FullBlack 280W

Power density 230.2 Wp/m² 233.1 Wp/m² Effectively the same

Open-circuit voltage 49.11 V 24.11 V 25.00 V apart

Voltage at max power 40.86 V 20.49 V 20.37 V apart

Short-circuit current 18.50 A 14.72 A 3.78 A apart

Current at max power 17.50 A 13.67 A 3.83 A apart

Temperature

Temperature coefficient -0.280 %/°C -0.260 %/°C +0.020 %/°C for 1.2 FullBlack 280W

Mechanical

Dimensions 2384x1303x33 mm 1560x770x35 mm 2384x1303x33 mm vs 1560x770x35 mm

Module area 3.106 m² 1.201 m² 1.905 m² apart

Weight 37.9 kg 14.3 kg -23.6 kg for 1.2 FullBlack 280W

Weight per kWp 53.0 kg/kWp 51.1 kg/kWp Effectively the same

Warranty and degradation

Product warranty 12 yrs 30 yrs +18 yrs for 1.2 FullBlack 280W

Performance warranty 30 yrs 30 yrs Same

Annual degradation 0.45 %/yr 0.45 %/yr Same

Technology

Cell technology TOPCon Back Contact TOPCon vs Back Contact

Cell type Monocrystalline Monocrystalline Same

Cell count 132 64 68 cells apart

Bifacial Yes Yes Same

Against the whole database

13,953 panels

Efficiency

#1,892 vs #1,004

1.2 FullBlack 280W leads by 888 places

Power density

#1,992 vs #1,084

1.2 FullBlack 280W leads by 908 places

Heat behaviour

#1,290 vs #511

1.2 FullBlack 280W leads by 779 places

Weight

#6,704 vs #4,382

1.2 FullBlack 280W leads by 2,322 places

Warranty

#21 vs #21

Tied - the same position in the database

Overall

#668 vs #9,692

2.2 715 leads by 9,024 places

More useful comparisons

Open the full database

Same series, other bin

Heckert Solar

Heckert Solar ZEUS 2.2 715 vs Heckert Solar ZEUS 2.2-715

The same specification on paper

Same series, other bin

Heckert Solar

Heckert Solar ZEUS 2.2 715 vs Heckert Solar ZEUS 2.2 710

The same specification on paper

Same series, other bin

Heckert Solar

Heckert Solar ZEUS 2.2 715 vs Heckert Solar ZEUS 2.2-710

The same specification on paper

Same series, other bin

Heckert Solar

Heckert Solar ZEUS 2.2 715 vs Heckert Solar ZEUS 2.1-640

10 differences, the largest is module efficiency

Same series, other bin

Heckert Solar

Heckert Solar ZEUS 2.2 715 vs Heckert Solar ZEUS 2.1 640W

9 differences, the largest is module efficiency

Same series, other bin

Heckert Solar

Heckert Solar ZEUS 2.2 715 vs Heckert Solar ZEUS 2.1-635

9 differences, the largest is rated power

Written summary

Checking cache...

Questions about this pairing

Which panel is better: Heckert Solar ZEUS 2.2 715 or Heckert Solar ZEUS 1.2 FullBlack 280W?

According to our database: Heckert Solar ZEUS 1.2 FullBlack 280 W has higher module efficiency (23.31% vs 23.00%); Heckert Solar ZEUS 1.2 FullBlack 280 W tolerates heat better (temp coeff -0.260%/°C vs -0.280%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.

What is the efficiency of Heckert Solar ZEUS 2.2 715 and Heckert Solar ZEUS 1.2 FullBlack 280W?

Heckert Solar ZEUS 2.2 715 has a module efficiency of 23.00%, while Heckert Solar ZEUS 1.2 FullBlack 280 W is 23.31%. Higher efficiency means more electricity from the same roof area - useful when space is limited.

What cell technology does Heckert Solar ZEUS 2.2 715 use vs Heckert Solar ZEUS 1.2 FullBlack 280W?

Heckert Solar ZEUS 2.2 715 uses TOPCon cells; Heckert Solar ZEUS 1.2 FullBlack 280 W uses Back Contact. 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 Heckert Solar ZEUS 2.2 715 and Heckert Solar ZEUS 1.2 FullBlack 280W?

Heckert Solar ZEUS 2.2 715 has a 30 years power warranty; Heckert Solar ZEUS 1.2 FullBlack 280 W 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 Heckert Solar ZEUS 2.2 715 and Heckert Solar ZEUS 1.2 FullBlack 280W bifacial panels?

Both Heckert Solar ZEUS 2.2 715 and Heckert Solar ZEUS 1.2 FullBlack 280 W 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 16 Heckert Solar 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.