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580 MV vs 700 MV 10 of 19 identical Swap Change panels

FuturaSun FU 580 MV vs FuturaSun FU 700 MV

FuturaSun
FU 580 MV
580 Wp 22.40 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
FuturaSun
FU 700 MV
700 Wp 22.53 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

9 differences, and they point both ways

The largest is rated power: 120 W more power. 10 of 19 comparable parameters are identical.

See all 9 differences
How alike are they
10 of 19 comparable
parameters are identical
identical differs
01

What actually differs

9 of 19 parameters
Parameter 580 MV 700 MV Difference
Rated power 580 Wp 700 Wp 120 W more power
Weight 32.0 kg 38.2 kg 6.2 kg lighter
Short-circuit current 14.48 A 18.38 A 3.90 A apart
Module area 2.583 m² 3.106 m² 0.523 m² apart
Open-circuit voltage 51.00 V 48.26 V 2.74 V apart
Current at max power 13.70 A 17.29 A 3.59 A apart
Cell count 144 132 12 cells apart
Dimensions 2278x1134x30 mm 2384x1303x33 mm 2278x1134x30 mm vs 2384x1303x33 mm
Voltage at max power 42.34 V 40.50 V 1.84 V apart
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 (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
580 MV
19,460 kWh
700 MV
23,486 kWh
Lifetime gap
4,026 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 580 MV 700 MV
Standard test conditions 25 °C 100.0% of rated power 580 W 700 W
Cool, bright day 40 °C 95.7% of rated power 555 W 670 W
Typical summer roof 55 °C 91.3% of rated power 530 W 639 W
Hot roof 70 °C 87.0% of rated power 504 W 609 W
03

Full specification

Parameter 580 MV 700 MV Difference
Power and efficiency
Rated power 580 Wp 700 Wp +120 W for 700 MV
Module efficiency 22.40 % 22.53 % Effectively the same
Power density 224.5 Wp/m² 225.3 Wp/m² Effectively the same
Open-circuit voltage 51.00 V 48.26 V 2.74 V apart
Voltage at max power 42.34 V 40.50 V 1.84 V apart
Short-circuit current 14.48 A 18.38 A 3.90 A apart
Current at max power 13.70 A 17.29 A 3.59 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 2278x1134x30 mm 2384x1303x33 mm 2278x1134x30 mm vs 2384x1303x33 mm
Module area 2.583 m² 3.106 m² 0.523 m² apart
Weight 32.0 kg 38.2 kg -6.2 kg for 580 MV
Weight per kWp 55.2 kg/kWp 54.6 kg/kWp Effectively the same
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 144 132 12 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,129 panels
Efficiency
#4,834 vs #4,041
700 MV leads by 793 places
Power density
#4,607 vs #4,048
700 MV leads by 559 places
Heat behaviour
#2,220 vs #2,220
Tied - the same position in the database
Weight
#9,671 vs #9,017
700 MV leads by 654 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#4,065 vs #937
700 MV leads by 3,128 places
05

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06

Written summary

07

Questions about this pairing

Which panel is better: FuturaSun FU 580 MV or FuturaSun FU 700 MV?
According to our database: FuturaSun FU 700 MV has higher module efficiency (22.53% vs 22.40%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of FuturaSun FU 580 MV and FuturaSun FU 700 MV?
FuturaSun FU 580 MV has a module efficiency of 22.40%, while FuturaSun FU 700 MV is 22.53%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does FuturaSun FU 580 MV use vs FuturaSun FU 700 MV?
FuturaSun FU 580 MV uses TOPCon cells; FuturaSun FU 700 MV 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 FuturaSun FU 580 MV and FuturaSun FU 700 MV?
FuturaSun FU 580 MV has a 30 years power warranty; FuturaSun FU 700 MV 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 FuturaSun FU 580 MV and FuturaSun FU 700 MV bifacial panels?
Both FuturaSun FU 580 MV and FuturaSun FU 700 MV 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.

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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.