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TP575LG10TB vs GSD7S72T-580WT 4 of 19 identical Swap Change panels

Tata Power Solar TP575LG10TB vs Tata Power Solar GSD7S72T-580WT

Tata Power Solar
TP575LG10TB
575 Wp 20.65 % PERC Bifacial
Open panel page Datasheet PDF
VS
Tata Power Solar
GSD7S72T-580WT
580 Wp 22.45 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

GSD7S72T-580WT leads on the differences that matter

The largest is module efficiency: 1.80 pp more efficient. 4 of 19 comparable parameters are identical.

See all 15 differences
How alike are they
4 of 19 comparable
parameters are identical
identical differs
01

What actually differs

15 of 19 parameters
Parameter TP575LG10TB GSD7S72T-580WT Difference
Module efficiency 20.65 % 22.45 % 1.80 pp more efficient
Temperature coefficient -0.360 %/°C -0.300 %/°C 0.060 %/°C better in heat
Power density 206.5 Wp/m² 224.5 Wp/m² 18.1 Wp/m² higher
Performance warranty 25 yrs 30 yrs 5 yrs longer
Annual degradation 0.72 %/yr 0.40 %/yr 0.32 %/yr slower
Product warranty 10 yrs 25 yrs 15 yrs longer
Module area 2.785 m² 2.583 m² 0.202 m² apart
Short-circuit current 13.10 A 14.47 A 1.37 A apart
Open-circuit voltage 53.52 V 51.02 V 2.50 V apart
Cell technology PERC TOPCon PERC vs TOPCon
Cell count 156 144 12 cells apart
Voltage at max power 45.87 V 42.37 V 3.50 V apart
Weight 31.0 kg 32.0 kg 1.0 kg lighter
Current at max power 12.54 A 13.69 A 1.15 A apart
Dimensions 2456x1134x35 mm 2278x1134x30 mm 2456x1134x35 mm vs 2278x1134x30 mm
02

What it means on a roof

Thirty years of production
Declared annual degradation, with a 1.0% first-year loss assumed for both panels because at least one datasheet omits it, at 1,200 kWh/kWp a year
TP575LG10TB
18,332 kWh
GSD7S72T-580WT
19,460 kWh
Lifetime gap
1,128 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario TP575LG10TB GSD7S72T-580WT
Standard test conditions 25 °C 100.0% of rated power 575 W 580 W
Cool, bright day 40 °C 94.6% of rated power 544 W 554 W
Typical summer roof 55 °C 89.2% of rated power 513 W 528 W
Hot roof 70 °C 83.8% of rated power 482 W 502 W
03

Full specification

Parameter TP575LG10TB GSD7S72T-580WT Difference
Power and efficiency
Rated power 575 Wp 580 Wp Effectively the same
Module efficiency 20.65 % 22.45 % +1.80 pp for GSD7S72T-580WT
Power density 206.5 Wp/m² 224.5 Wp/m² +18.1 Wp/m² for GSD7S72T-580WT
Open-circuit voltage 53.52 V 51.02 V 2.50 V apart
Voltage at max power 45.87 V 42.37 V 3.50 V apart
Short-circuit current 13.10 A 14.47 A 1.37 A apart
Current at max power 12.54 A 13.69 A 1.15 A apart
Temperature
Temperature coefficient -0.360 %/°C -0.300 %/°C +0.060 %/°C for GSD7S72T-580WT
Mechanical
Dimensions 2456x1134x35 mm 2278x1134x30 mm 2456x1134x35 mm vs 2278x1134x30 mm
Module area 2.785 m² 2.583 m² 0.202 m² apart
Weight 31.0 kg 32.0 kg -1.0 kg for TP575LG10TB
Weight per kWp 53.9 kg/kWp 55.2 kg/kWp Effectively the same
Warranty and degradation
Product warranty 10 yrs 25 yrs +15 yrs for GSD7S72T-580WT
Performance warranty 25 yrs 30 yrs +5 yrs for GSD7S72T-580WT
Annual degradation 0.72 %/yr 0.40 %/yr -0.32 %/yr for GSD7S72T-580WT
Technology
Cell technology PERC TOPCon PERC vs TOPCon
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
#11,014 vs #4,620
GSD7S72T-580WT leads by 6,394 places
Power density
#11,004 vs #4,547
GSD7S72T-580WT leads by 6,457 places
Heat behaviour
#12,345 vs #6,093
GSD7S72T-580WT leads by 6,252 places
Weight
#8,049 vs #9,588
TP575LG10TB leads by 1,539 places
Warranty
#9,798 vs #21
GSD7S72T-580WT leads by 9,777 places
Overall
#8,435 vs #2,039
GSD7S72T-580WT leads by 6,396 places
05

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06

Written summary

07

Questions about this pairing

Which panel is better: Tata Power Solar TP575LG10TB or Tata Power Solar GSD7S72T-580WT?
According to our database: Tata Power Solar GSD7S72T-580WT has higher module efficiency (22.45% vs 20.65%); Tata Power Solar GSD7S72T-580WT tolerates heat better (temp coeff -0.300%/°C vs -0.360%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Tata Power Solar TP575LG10TB and Tata Power Solar GSD7S72T-580WT?
Tata Power Solar TP575LG10TB has a module efficiency of 20.65%, while Tata Power Solar GSD7S72T-580WT is 22.45%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Tata Power Solar TP575LG10TB use vs Tata Power Solar GSD7S72T-580WT?
Tata Power Solar TP575LG10TB uses PERC cells; Tata Power Solar GSD7S72T-580WT 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 Tata Power Solar TP575LG10TB and Tata Power Solar GSD7S72T-580WT?
Tata Power Solar TP575LG10TB has a 25 years power warranty; Tata Power Solar GSD7S72T-580WT 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 TP575LG10TB and Tata Power Solar GSD7S72T-580WT bifacial panels?
Both Tata Power Solar TP575LG10TB and Tata Power Solar GSD7S72T-580WT 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.