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TWMND-72 HD575 vs LR7-60HVH-540M 2 of 19 identical Swap Change panels

Tongwei TWMND-72 HD575 vs Longi Solar LR7-60HVH-540M

Tongwei TWMND-72 HD575
TWMND-72 HD575
575 Wp 22.30 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Longi Solar LR7-60HVH-540M
LR7-60HVH-540M
540 Wp 23.90 % N-type
Open panel page Datasheet PDF
The verdict

LR7-60HVH-540M leads on the differences that matter

The largest is module efficiency: 1.60 pp more efficient. 2 of 19 comparable parameters are identical.

See all 17 differences
How alike are they
2 of 19 comparable
parameters are identical
identical differs
01

What actually differs

17 of 19 parameters
Parameter TWMND-72 HD575 LR7-60HVH-540M Difference
Module efficiency 22.30 % 23.90 % 1.60 pp more efficient
Power density 222.6 Wp/m² 239.3 Wp/m² 16.7 Wp/m² higher
Rated power 575 Wp 540 Wp 35 W more power
Weight 31.5 kg 25.0 kg 6.5 kg lighter
Weight per kWp 54.8 kg/kWp 46.3 kg/kWp 8.5 kg/kWp lighter
Temperature coefficient -0.280 %/°C -0.260 %/°C 0.020 %/°C better in heat
Product warranty 12 yrs 15 yrs 3 yrs longer
Open-circuit voltage 52.10 V 44.88 V 7.22 V apart
Module area 2.583 m² 2.257 m² 0.327 m² apart
Short-circuit current 13.80 A 15.25 A 1.45 A apart
Cell technology TOPCon N-type TOPCon vs N-type
Annual degradation 0.40 %/yr 0.35 %/yr 0.05 %/yr slower
Voltage at max power 43.76 V 37.11 V 6.65 V apart
Cell count 144 120 24 cells apart
Bifacial Yes No Yes vs No
Current at max power 13.14 A 14.55 A 1.41 A apart
Dimensions 2278x1134x30 mm 1990x1134x30 mm 2278x1134x30 mm vs 1990x1134x30 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
TWMND-72 HD575
19,292 kWh
LR7-60HVH-540M
18,259 kWh
Lifetime gap
1,033 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario TWMND-72 HD575 LR7-60HVH-540M
Standard test conditions 25 °C 100.0% of rated power 575 W 540 W
Cool, bright day 40 °C 95.8% of rated power 551 W 519 W
Typical summer roof 55 °C 91.6% of rated power 527 W 498 W
Hot roof 70 °C 87.4% of rated power 503 W 477 W
03

Full specification

Parameter TWMND-72 HD575 LR7-60HVH-540M Difference
Power and efficiency
Rated power 575 Wp 540 Wp +35 W for TWMND-72 HD575
Module efficiency 22.30 % 23.90 % +1.60 pp for LR7-60HVH-540M
Power density 222.6 Wp/m² 239.3 Wp/m² +16.7 Wp/m² for LR7-60HVH-540M
Open-circuit voltage 52.10 V 44.88 V 7.22 V apart
Voltage at max power 43.76 V 37.11 V 6.65 V apart
Short-circuit current 13.80 A 15.25 A 1.45 A apart
Current at max power 13.14 A 14.55 A 1.41 A apart
Temperature
Temperature coefficient -0.280 %/°C -0.260 %/°C +0.020 %/°C for LR7-60HVH-540M
Mechanical
Dimensions 2278x1134x30 mm 1990x1134x30 mm 2278x1134x30 mm vs 1990x1134x30 mm
Module area 2.583 m² 2.257 m² 0.327 m² apart
Weight 31.5 kg 25.0 kg -6.5 kg for LR7-60HVH-540M
Weight per kWp 54.8 kg/kWp 46.3 kg/kWp -8.5 kg/kWp for LR7-60HVH-540M
Warranty and degradation
Product warranty 12 yrs 15 yrs +3 yrs for LR7-60HVH-540M
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.35 %/yr -0.05 %/yr for LR7-60HVH-540M
Technology
Cell technology TOPCon N-type TOPCon vs N-type
Cell type Monocrystalline Monocrystalline Same
Cell count 144 120 24 cells apart
Bifacial Yes No Yes vs No
04

Against the whole database

14,129 panels
Efficiency
#5,161 vs #378
LR7-60HVH-540M leads by 4,783 places
Power density
#5,612 vs #380
LR7-60HVH-540M leads by 5,232 places
Heat behaviour
#1,347 vs #515
LR7-60HVH-540M leads by 832 places
Weight
#9,257 vs #1,110
LR7-60HVH-540M leads by 8,147 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#4,927 vs #3,567
LR7-60HVH-540M leads by 1,360 places
05

More useful comparisons

Open the full database
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Tongwei TWMND-72 HD575 vs Tongwei TWMNF-66HD750
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Tongwei TWMND-72 HD575 vs Tongwei TWMNF-66HD745
12 differences, the largest is module efficiency
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Tongwei TWMND-72 HD575 vs Tongwei TWMNF-66HD740
12 differences, the largest is module efficiency
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Tongwei TWMND-72 HD575 vs Tongwei TWMNF-66HD735
12 differences, the largest is module efficiency
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Tongwei TWMND-72 HD575 vs Tongwei TWMNF-66HD730
12 differences, the largest is module efficiency
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Tongwei TWMND-72 HD575 vs Tongwei TWMNF-66HD725
12 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Tongwei TWMND-72 HD575 or Longi Solar LR7-60HVH-540M?
According to our database: Longi Solar LR7-60HVH-540M has higher module efficiency (23.90% vs 22.30%); Longi Solar LR7-60HVH-540M 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 Tongwei TWMND-72 HD575 and Longi Solar LR7-60HVH-540M?
Tongwei TWMND-72 HD575 has a module efficiency of 22.30%, while Longi Solar LR7-60HVH-540M is 23.90%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Tongwei TWMND-72 HD575 use vs Longi Solar LR7-60HVH-540M?
Tongwei TWMND-72 HD575 uses TOPCon cells; Longi Solar LR7-60HVH-540M 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 Tongwei TWMND-72 HD575 and Longi Solar LR7-60HVH-540M?
Tongwei TWMND-72 HD575 has a 30 years power warranty; Longi Solar LR7-60HVH-540M 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 Tongwei TWMND-72 HD575 and Longi Solar LR7-60HVH-540M bifacial panels?
Tongwei TWMND-72 HD575 is bifacial (captures light from both faces); Longi Solar LR7-60HVH-540M is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.
Compare Tongwei and Longi Solar as manufacturers Portfolio, efficiency, cell technologies and warranty terms

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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.