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490WP PERFORMANCE vs 485WP PERFORMANCE 16 of 19 identical Swap Change panels

Heckert Solar ZEUS 3.0+ 108 490WP PERFORMANCE vs Heckert Solar ZEUS 3.0+ 108 485WP PERFORMANCE

Heckert Solar
ZEUS 3.0+ 108 490WP PERFORMANCE
490 Wp 24.00 % Back Contact Bifacial
Open panel page Datasheet PDF
VS
Heckert Solar ZEUS 3.0+ 108 485WP PERFORMANCE
Heckert Solar
ZEUS 3.0+ 108 485WP PERFORMANCE
485 Wp 24.30 % Back Contact Bifacial
Open panel page Datasheet PDF
The verdict

485WP PERFORMANCE leads on the differences that matter

The largest is module efficiency: 0.30 pp more efficient. 16 of 19 comparable parameters are identical.

See all 3 differences
How alike are they
16 of 19 comparable
parameters are identical
identical differs
01

What actually differs

3 of 19 parameters
Parameter 490WP PERFORMANCE 485WP PERFORMANCE Difference
Module efficiency 24.00 % 24.30 % 0.30 pp more efficient
Module area 2.041 m² 1.998 m² 0.043 m² apart
Dimensions 1800x1134x30 mm 1762x1134x30 mm 1800x1134x30 mm vs 1762x1134x30 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
Same temp coeff. for both panels (-0.260 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
490WP PERFORMANCE
16,136 kWh
485WP PERFORMANCE
15,972 kWh
Lifetime gap
164 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 490WP PERFORMANCE 485WP PERFORMANCE
Standard test conditions 25 °C 100.0% of rated power 490 W 485 W
Cool, bright day 40 °C 96.1% of rated power 471 W 466 W
Typical summer roof 55 °C 92.2% of rated power 452 W 447 W
Hot roof 70 °C 88.3% of rated power 433 W 428 W
03

Full specification

Parameter 490WP PERFORMANCE 485WP PERFORMANCE Difference
Power and efficiency
Rated power 490 Wp 485 Wp Effectively the same
Module efficiency 24.00 % 24.30 % +0.30 pp for 485WP PERFORMANCE
Power density 240.1 Wp/m² 242.7 Wp/m² Effectively the same
Open-circuit voltage 41.02 V 41.00 V Effectively the same
Voltage at max power 34.04 V 34.60 V Effectively the same
Short-circuit current 15.10 A 14.84 A Effectively the same
Current at max power 14.40 A 14.02 A Effectively the same
Temperature
Temperature coefficient -0.260 %/°C -0.260 %/°C Same
Mechanical
Dimensions 1800x1134x30 mm 1762x1134x30 mm 1800x1134x30 mm vs 1762x1134x30 mm
Module area 2.041 m² 1.998 m² 0.043 m² apart
Weight 24.8 kg 24.2 kg Effectively the same
Weight per kWp 50.6 kg/kWp 49.9 kg/kWp Effectively the same
Warranty and degradation
Product warranty 30 yrs 30 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.45 %/yr 0.45 %/yr Same
Technology
Cell technology Back Contact Back Contact Same
Cell type Monocrystalline Monocrystalline Same
Cell count 108 108 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#303 vs #131
485WP PERFORMANCE leads by 172 places
Power density
#313 vs #140
485WP PERFORMANCE leads by 173 places
Heat behaviour
#511 vs #511
Tied - the same position in the database
Weight
#4,047 vs #3,275
485WP PERFORMANCE leads by 772 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#2,176 vs #2,068
485WP PERFORMANCE leads by 108 places
05

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06

Written summary

07

Questions about this pairing

Which panel is better: Heckert Solar ZEUS 3.0+ 108 490WP PERFORMANCE or Heckert Solar ZEUS 3.0+ 108 485WP PERFORMANCE?
According to our database: Heckert Solar ZEUS 3.0+ 108 485WP PERFORMANCE has higher module efficiency (24.30% vs 24.00%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Heckert Solar ZEUS 3.0+ 108 490WP PERFORMANCE and Heckert Solar ZEUS 3.0+ 108 485WP PERFORMANCE?
Heckert Solar ZEUS 3.0+ 108 490WP PERFORMANCE has a module efficiency of 24.00%, while Heckert Solar ZEUS 3.0+ 108 485WP PERFORMANCE is 24.30%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Heckert Solar ZEUS 3.0+ 108 490WP PERFORMANCE use vs Heckert Solar ZEUS 3.0+ 108 485WP PERFORMANCE?
Heckert Solar ZEUS 3.0+ 108 490WP PERFORMANCE uses Back Contact cells; Heckert Solar ZEUS 3.0+ 108 485WP PERFORMANCE 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 3.0+ 108 490WP PERFORMANCE and Heckert Solar ZEUS 3.0+ 108 485WP PERFORMANCE?
Heckert Solar ZEUS 3.0+ 108 490WP PERFORMANCE has a 30 years power warranty; Heckert Solar ZEUS 3.0+ 108 485WP PERFORMANCE 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 3.0+ 108 490WP PERFORMANCE and Heckert Solar ZEUS 3.0+ 108 485WP PERFORMANCE bifacial panels?
Both Heckert Solar ZEUS 3.0+ 108 490WP PERFORMANCE and Heckert Solar ZEUS 3.0+ 108 485WP PERFORMANCE 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.