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TP540HG10B-550 vs TP550HG10TB 13 of 19 identical Swap Change panels

Tata Power Solar TP540HG10B-550 vs Tata Power Solar TP550HG10TB

Tata Power Solar
TP540HG10B-550
550 Wp 21.29 % PERC Bifacial
Open panel page Datasheet PDF
VS
Tata Power Solar
TP550HG10TB
550 Wp 21.29 % PERC Bifacial
Open panel page Datasheet PDF
The verdict

6 differences, and they point both ways

The largest is performance warranty: 5 yrs longer. 13 of 19 comparable parameters are identical.

See all 6 differences
How alike are they
13 of 19 comparable
parameters are identical
identical differs
01

What actually differs

6 of 19 parameters
Parameter TP540HG10B-550 TP550HG10TB Difference
Performance warranty 30 yrs 25 yrs 5 yrs longer
Weight 33.0 kg 29.0 kg 4.0 kg lighter
Weight per kWp 60.0 kg/kWp 52.7 kg/kWp 7.3 kg/kWp lighter
Annual degradation 0.60 %/yr 0.72 %/yr 0.12 %/yr slower
Product warranty 12 yrs 10 yrs 2 yrs longer
Temperature coefficient -0.370 %/°C -0.360 %/°C 0.010 %/°C better in heat
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
TP540HG10B-550
17,582 kWh
TP550HG10TB
17,238 kWh
Lifetime gap
344 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario TP540HG10B-550 TP550HG10TB
Standard test conditions 25 °C 100.0% of rated power 550 W 550 W
Cool, bright day 40 °C 94.5% of rated power 519 W 520 W
Typical summer roof 55 °C 88.9% of rated power 489 W 491 W
Hot roof 70 °C 83.3% of rated power 458 W 461 W
03

Full specification

Parameter TP540HG10B-550 TP550HG10TB Difference
Power and efficiency
Rated power 550 Wp 550 Wp Same
Module efficiency 21.29 % 21.29 % Same
Power density 212.9 Wp/m² 212.9 Wp/m² Same
Open-circuit voltage 49.75 V 49.75 V Same
Voltage at max power 42.62 V 42.62 V Same
Short-circuit current 13.42 A 13.42 A Same
Current at max power 12.90 A 12.90 A Same
Temperature
Temperature coefficient -0.370 %/°C -0.360 %/°C +0.010 %/°C for TP550HG10TB
Mechanical
Dimensions 2278x1134x35 mm 2278x1134x35 mm Same
Module area 2.583 m² 2.583 m² Same
Weight 33.0 kg 29.0 kg -4.0 kg for TP550HG10TB
Weight per kWp 60.0 kg/kWp 52.7 kg/kWp -7.3 kg/kWp for TP550HG10TB
Warranty and degradation
Product warranty 12 yrs 10 yrs +2 yrs for TP540HG10B-550
Performance warranty 30 yrs 25 yrs +5 yrs for TP540HG10B-550
Annual degradation 0.60 %/yr 0.72 %/yr -0.12 %/yr for TP540HG10B-550
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 #8,708
Tied - the same position in the database
Power density
#8,497 vs #8,497
Tied - the same position in the database
Heat behaviour
#13,081 vs #12,345
TP550HG10TB leads by 736 places
Weight
#12,318 vs #6,373
TP550HG10TB leads by 5,945 places
Warranty
#21 vs #9,798
TP540HG10B-550 leads by 9,777 places
Overall
#7,023 vs #8,571
TP540HG10B-550 leads by 1,548 places
05

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06

Written summary

07

Questions about this pairing

Which panel is better: Tata Power Solar TP540HG10B-550 or Tata Power Solar TP550HG10TB?
According to our database: 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 TP540HG10B-550 and Tata Power Solar TP550HG10TB?
Tata Power Solar TP540HG10B-550 has a module efficiency of 21.29%, while Tata Power Solar TP550HG10TB is 21.29%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Tata Power Solar TP540HG10B-550 use vs Tata Power Solar TP550HG10TB?
Tata Power Solar TP540HG10B-550 uses PERC cells; Tata Power Solar TP550HG10TB 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 TP540HG10B-550 and Tata Power Solar TP550HG10TB?
Tata Power Solar TP540HG10B-550 has a 30 years power warranty; Tata Power Solar TP550HG10TB has a 25 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 TP540HG10B-550 and Tata Power Solar TP550HG10TB bifacial panels?
Both Tata Power Solar TP540HG10B-550 and Tata Power Solar TP550HG10TB 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.