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550 vs 530 15 of 19 identical Swap Change panels

Tata Power Solar TP540HG10B-550 vs Tata Power Solar TP540HG10B-530

Tata Power Solar
TP540HG10B-550
550 Wp 21.29 % PERC Bifacial
Open panel page Datasheet PDF
VS
Tata Power Solar
TP540HG10B-530
530 Wp 20.52 % PERC Bifacial
Open panel page Datasheet PDF
The verdict

550 leads on the differences that matter

The largest is module efficiency: 0.77 pp more efficient. 15 of 19 comparable parameters are identical.

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

What actually differs

4 of 19 parameters
Parameter 550 530 Difference
Module efficiency 21.29 % 20.52 % 0.77 pp more efficient
Power density 212.9 Wp/m² 205.2 Wp/m² 7.7 Wp/m² higher
Rated power 550 Wp 530 Wp 20 W more power
Weight per kWp 60.0 kg/kWp 62.3 kg/kWp 2.3 kg/kWp lighter
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.
550
17,582 kWh
530
16,943 kWh
Lifetime gap
639 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 550 530
Standard test conditions 25 °C 100.0% of rated power 550 W 530 W
Cool, bright day 40 °C 94.5% of rated power 519 W 501 W
Typical summer roof 55 °C 88.9% of rated power 489 W 471 W
Hot roof 70 °C 83.3% of rated power 458 W 442 W
03

Full specification

Parameter 550 530 Difference
Power and efficiency
Rated power 550 Wp 530 Wp +20 W for 550
Module efficiency 21.29 % 20.52 % +0.77 pp for 550
Power density 212.9 Wp/m² 205.2 Wp/m² +7.7 Wp/m² for 550
Open-circuit voltage 49.75 V 49.30 V Effectively the same
Voltage at max power 42.62 V 42.20 V Effectively the same
Short-circuit current 13.42 A 13.13 A Effectively the same
Current at max power 12.90 A 12.56 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 60.0 kg/kWp 62.3 kg/kWp -2.3 kg/kWp for 550
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
#8,708 vs #11,244
550 leads by 2,536 places
Power density
#8,497 vs #11,255
550 leads by 2,758 places
Heat behaviour
#13,081 vs #13,081
Tied - the same position in the database
Weight
#12,318 vs #12,757
550 leads by 439 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#7,023 vs #8,798
550 leads by 1,775 places
05

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The same specification on paper
06

Written summary

07

Questions about this pairing

Which panel is better: Tata Power Solar TP540HG10B-550 or Tata Power Solar TP540HG10B-530?
According to our database: Tata Power Solar TP540HG10B-550 has higher module efficiency (21.29% vs 20.52%). 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 TP540HG10B-530?
Tata Power Solar TP540HG10B-550 has a module efficiency of 21.29%, while Tata Power Solar TP540HG10B-530 is 20.52%. 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 TP540HG10B-530?
Tata Power Solar TP540HG10B-550 uses PERC cells; Tata Power Solar TP540HG10B-530 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 TP540HG10B-530?
Tata Power Solar TP540HG10B-550 has a 30 years power warranty; Tata Power Solar TP540HG10B-530 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-550 and Tata Power Solar TP540HG10B-530 bifacial panels?
Both Tata Power Solar TP540HG10B-550 and Tata Power Solar TP540HG10B-530 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.