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535 vs 550 16 of 19 identical Swap Change panels

Tata Power Solar TP540HG10B-535 vs Tata Power Solar TP540HG10B-550

Tata Power Solar
TP540HG10B-535
535 Wp 20.71 % PERC Bifacial
Open panel page Datasheet PDF
VS
Tata Power Solar
TP540HG10B-550
550 Wp 21.29 % PERC Bifacial
Open panel page Datasheet PDF
The verdict

550 leads on the differences that matter

The largest is module efficiency: 0.58 pp more efficient. 16 of 19 comparable parameters are identical.

See all 3 differences
How alike are they
16 of 19 comparable
parameters are identical
identical differs
01

What actually differs

3 of 19 parameters
Parameter 535 550 Difference
Module efficiency 20.71 % 21.29 % 0.58 pp more efficient
Power density 207.1 Wp/m² 212.9 Wp/m² 5.8 Wp/m² higher
Rated power 535 Wp 550 Wp 15 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
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.
535
17,103 kWh
550
17,582 kWh
Lifetime gap
479 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 535 550
Standard test conditions 25 °C 100.0% of rated power 535 W 550 W
Cool, bright day 40 °C 94.5% of rated power 505 W 519 W
Typical summer roof 55 °C 88.9% of rated power 476 W 489 W
Hot roof 70 °C 83.3% of rated power 446 W 458 W
03

Full specification

Parameter 535 550 Difference
Power and efficiency
Rated power 535 Wp 550 Wp +15 W for 550
Module efficiency 20.71 % 21.29 % +0.58 pp for 550
Power density 207.1 Wp/m² 212.9 Wp/m² +5.8 Wp/m² for 550
Open-circuit voltage 49.40 V 49.75 V Effectively the same
Voltage at max power 42.35 V 42.62 V Effectively the same
Short-circuit current 13.20 A 13.42 A Effectively the same
Current at max power 12.63 A 12.90 A Effectively the same
Temperature
Temperature coefficient -0.370 %/°C -0.370 %/°C Same
Mechanical
Dimensions 2278x1134x35 mm 2278x1134x35 mm Same
Module area 2.583 m² 2.583 m² Same
Weight 33.0 kg 33.0 kg Same
Weight per kWp 61.7 kg/kWp 60.0 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 144 144 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#10,721 vs #8,708
550 leads by 2,013 places
Power density
#10,764 vs #8,497
550 leads by 2,267 places
Heat behaviour
#13,081 vs #13,081
Tied - the same position in the database
Weight
#12,676 vs #12,318
550 leads by 358 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#8,359 vs #7,023
550 leads by 1,336 places
05

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06

Written summary

07

Questions about this pairing

Which panel is better: Tata Power Solar TP540HG10B-535 or Tata Power Solar TP540HG10B-550?
According to our database: Tata Power Solar TP540HG10B-550 has higher module efficiency (21.29% vs 20.71%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Tata Power Solar TP540HG10B-535 and Tata Power Solar TP540HG10B-550?
Tata Power Solar TP540HG10B-535 has a module efficiency of 20.71%, while Tata Power Solar TP540HG10B-550 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-535 use vs Tata Power Solar TP540HG10B-550?
Tata Power Solar TP540HG10B-535 uses PERC cells; Tata Power Solar TP540HG10B-550 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-535 and Tata Power Solar TP540HG10B-550?
Tata Power Solar TP540HG10B-535 has a 30 years power warranty; Tata Power Solar TP540HG10B-550 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 TP540HG10B-535 and Tata Power Solar TP540HG10B-550 bifacial panels?
Both Tata Power Solar TP540HG10B-535 and Tata Power Solar TP540HG10B-550 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.