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TP550HG10TB vs TP540HG10B-540 10 of 19 identical Swap Change panels

Tata Power Solar TP550HG10TB vs Tata Power Solar TP540HG10B-540

Tata Power Solar
TP550HG10TB
550 Wp 21.29 % PERC Bifacial
VS
Tata Power Solar
TP540HG10B-540
540 Wp 20.90 % PERC Bifacial
The verdict

TP550HG10TB leads on the differences that matter

The largest is performance warranty: 5 yrs longer. 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 TP550HG10TB TP540HG10B-540 Difference
Performance warranty 25 yrs 30 yrs 5 yrs longer
Weight 29.0 kg 33.0 kg 4.0 kg lighter
Weight per kWp 52.7 kg/kWp 61.1 kg/kWp 8.4 kg/kWp lighter
Module efficiency 21.29 % 20.90 % 0.39 pp more efficient
Annual degradation 0.72 %/yr 0.60 %/yr 0.12 %/yr slower
Product warranty 10 yrs 12 yrs 2 yrs longer
Power density 212.9 Wp/m² 209.0 Wp/m² 3.9 Wp/m² higher
Temperature coefficient -0.360 %/°C -0.370 %/°C 0.010 %/°C better in heat
Rated power 550 Wp 540 Wp 10 W more power
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
TP550HG10TB
17,238 kWh
TP540HG10B-540
17,263 kWh
Lifetime gap
25 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario TP550HG10TB TP540HG10B-540
Standard test conditions 25 °C 100.0% of rated power 550 W 540 W
Cool, bright day 40 °C 94.5% of rated power 520 W 510 W
Typical summer roof 55 °C 88.9% of rated power 491 W 480 W
Hot roof 70 °C 83.3% of rated power 461 W 450 W
03

Full specification

Parameter TP550HG10TB TP540HG10B-540 Difference
Power and efficiency
Rated power 550 Wp 540 Wp +10 W for TP550HG10TB
Module efficiency 21.29 % 20.90 % +0.39 pp for TP550HG10TB
Power density 212.9 Wp/m² 209.0 Wp/m² +3.9 Wp/m² for TP550HG10TB
Open-circuit voltage 49.75 V 49.50 V Effectively the same
Voltage at max power 42.62 V 42.45 V Effectively the same
Short-circuit current 13.42 A 13.23 A Effectively the same
Current at max power 12.90 A 12.72 A Effectively the same
Temperature
Temperature coefficient -0.360 %/°C -0.370 %/°C +0.010 %/°C for TP550HG10TB
Mechanical
Dimensions 2278x1134x35 mm 2278x1134x35 mm Same
Module area 2.583 m² 2.583 m² Same
Weight 29.0 kg 33.0 kg -4.0 kg for TP550HG10TB
Weight per kWp 52.7 kg/kWp 61.1 kg/kWp -8.4 kg/kWp for TP550HG10TB
Warranty and degradation
Product warranty 10 yrs 12 yrs +2 yrs for TP540HG10B-540
Performance warranty 25 yrs 30 yrs +5 yrs for TP540HG10B-540
Annual degradation 0.72 %/yr 0.60 %/yr -0.12 %/yr for TP540HG10B-540
Technology
Cell technology PERC PERC Same
Cell type Monocrystalline Monocrystalline Same
Cell count 144 144 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#8,708 vs #10,072
TP550HG10TB leads by 1,364 places
Power density
#8,497 vs #10,100
TP550HG10TB leads by 1,603 places
Heat behaviour
#12,345 vs #13,081
TP550HG10TB leads by 736 places
Weight
#6,373 vs #12,596
TP550HG10TB leads by 6,223 places
Warranty
#9,798 vs #21
TP540HG10B-540 leads by 9,777 places
Overall
#8,571 vs #7,921
TP540HG10B-540 leads by 650 places
05

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06

Written summary

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07

Questions about this pairing

Which panel is better: Tata Power Solar TP550HG10TB or Tata Power Solar TP540HG10B-540?
According to our database: Tata Power Solar TP550HG10TB has higher module efficiency (21.29% vs 20.90%); Tata Power Solar TP550HG10TB tolerates heat better (temp coeff -0.360%/°C vs -0.370%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Tata Power Solar TP550HG10TB and Tata Power Solar TP540HG10B-540?
Tata Power Solar TP550HG10TB has a module efficiency of 21.29%, 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 TP550HG10TB use vs Tata Power Solar TP540HG10B-540?
Tata Power Solar TP550HG10TB 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 TP550HG10TB and Tata Power Solar TP540HG10B-540?
Tata Power Solar TP550HG10TB has a 25 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 TP550HG10TB and Tata Power Solar TP540HG10B-540 bifacial panels?
Both Tata Power Solar TP550HG10TB 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.