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TP580LG10B vs TP540HG10B-540 12 of 19 identical Swap Change panels

Tata Power Solar TP580LG10B vs Tata Power Solar TP540HG10B-540

Tata Power Solar TP580LG10B
Tata Power Solar
TP580LG10B
580 Wp 20.83 % PERC Bifacial
Open panel page Datasheet PDF
VS
Tata Power Solar
TP540HG10B-540
540 Wp 20.90 % PERC Bifacial
Open panel page Datasheet PDF
The verdict

TP580LG10B leads on the differences that matter

The largest is rated power: 40 W more power. 12 of 19 comparable parameters are identical.

See all 7 differences
How alike are they
12 of 19 comparable
parameters are identical
identical differs
01

What actually differs

7 of 19 parameters
Parameter TP580LG10B TP540HG10B-540 Difference
Rated power 580 Wp 540 Wp 40 W more power
Weight 36.0 kg 33.0 kg 3.0 kg lighter
Open-circuit voltage 53.63 V 49.50 V 4.13 V apart
Module area 2.785 m² 2.583 m² 0.202 m² apart
Cell count 156 144 12 cells apart
Voltage at max power 45.97 V 42.45 V 3.52 V apart
Dimensions 2456x1134x35 mm 2278x1134x35 mm 2456x1134x35 mm vs 2278x1134x35 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 (-0.370 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
TP580LG10B
18,541 kWh
TP540HG10B-540
17,263 kWh
Lifetime gap
1,278 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario TP580LG10B TP540HG10B-540
Standard test conditions 25 °C 100.0% of rated power 580 W 540 W
Cool, bright day 40 °C 94.5% of rated power 548 W 510 W
Typical summer roof 55 °C 88.9% of rated power 516 W 480 W
Hot roof 70 °C 83.3% of rated power 483 W 450 W
03

Full specification

Parameter TP580LG10B TP540HG10B-540 Difference
Power and efficiency
Rated power 580 Wp 540 Wp +40 W for TP580LG10B
Module efficiency 20.83 % 20.90 % Effectively the same
Power density 208.3 Wp/m² 209.0 Wp/m² Effectively the same
Open-circuit voltage 53.63 V 49.50 V 4.13 V apart
Voltage at max power 45.97 V 42.45 V 3.52 V apart
Short-circuit current 13.12 A 13.23 A Effectively the same
Current at max power 12.62 A 12.72 A Effectively the same
Temperature
Temperature coefficient -0.370 %/°C -0.370 %/°C Same
Mechanical
Dimensions 2456x1134x35 mm 2278x1134x35 mm 2456x1134x35 mm vs 2278x1134x35 mm
Module area 2.785 m² 2.583 m² 0.202 m² apart
Weight 36.0 kg 33.0 kg -3.0 kg for TP540HG10B-540
Weight per kWp 62.1 kg/kWp 61.1 kg/kWp Effectively the same
Warranty and degradation
Product warranty 12 yrs 12 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.60 %/yr 0.60 %/yr Same
Technology
Cell technology PERC PERC Same
Cell type Monocrystalline Monocrystalline Same
Cell count 156 144 12 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#10,433 vs #10,072
TP540HG10B-540 leads by 361 places
Power density
#10,448 vs #10,100
TP540HG10B-540 leads by 348 places
Heat behaviour
#13,081 vs #13,081
Tied - the same position in the database
Weight
#12,738 vs #12,596
TP540HG10B-540 leads by 142 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#6,484 vs #7,921
TP580LG10B leads by 1,437 places
05

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06

Written summary

07

Questions about this pairing

Which panel is better: Tata Power Solar TP580LG10B or Tata Power Solar TP540HG10B-540?
According to our database: Tata Power Solar TP540HG10B-540 has higher module efficiency (20.90% vs 20.83%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Tata Power Solar TP580LG10B and Tata Power Solar TP540HG10B-540?
Tata Power Solar TP580LG10B has a module efficiency of 20.83%, while Tata Power Solar TP540HG10B-540 is 20.90%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Tata Power Solar TP580LG10B use vs Tata Power Solar TP540HG10B-540?
Tata Power Solar TP580LG10B uses PERC cells; Tata Power Solar TP540HG10B-540 uses PERC. 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 Tata Power Solar TP580LG10B and Tata Power Solar TP540HG10B-540?
Tata Power Solar TP580LG10B has a 30 years power warranty; Tata Power Solar TP540HG10B-540 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 Tata Power Solar TP580LG10B and Tata Power Solar TP540HG10B-540 bifacial panels?
Both Tata Power Solar TP580LG10B and Tata Power Solar TP540HG10B-540 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.

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.