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TP540HG10TB vs TP545HG10TB 18 of 19 identical Swap Change panels

Tata Power Solar TP540HG10TB vs Tata Power Solar TP545HG10TB

Tata Power Solar
TP540HG10TB
540 Wp 20.90 % PERC Bifacial
Open panel page Datasheet PDF
VS
Tata Power Solar
TP545HG10TB
545 Wp 21.10 % PERC Bifacial
Open panel page Datasheet PDF
The verdict

TP545HG10TB leads on the differences that matter

The largest is module efficiency: 0.20 pp more efficient. 18 of 19 comparable parameters are identical.

See the one difference
How alike are they
18 of 19 comparable
parameters are identical
identical differs
01

What actually differs

1 of 19 parameters
Parameter TP540HG10TB TP545HG10TB Difference
Module efficiency 20.90 % 21.10 % 0.20 pp more efficient
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 (-0.360 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
TP540HG10TB
16,924 kWh
TP545HG10TB
17,081 kWh
Lifetime gap
157 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario TP540HG10TB TP545HG10TB
Standard test conditions 25 °C 100.0% of rated power 540 W 545 W
Cool, bright day 40 °C 94.6% of rated power 511 W 516 W
Typical summer roof 55 °C 89.2% of rated power 482 W 486 W
Hot roof 70 °C 83.8% of rated power 453 W 457 W
03

Full specification

Parameter TP540HG10TB TP545HG10TB Difference
Power and efficiency
Rated power 540 Wp 545 Wp Effectively the same
Module efficiency 20.90 % 21.10 % +0.20 pp for TP545HG10TB
Power density 209.0 Wp/m² 211.0 Wp/m² Effectively the same
Open-circuit voltage 49.50 V 49.60 V Effectively the same
Voltage at max power 42.45 V 42.55 V Effectively the same
Short-circuit current 13.23 A 13.32 A Effectively the same
Current at max power 12.72 A 12.81 A Effectively the same
Temperature
Temperature coefficient -0.360 %/°C -0.360 %/°C Same
Mechanical
Dimensions 2278x1134x35 mm 2278x1134x35 mm Same
Module area 2.583 m² 2.583 m² Same
Weight 29.0 kg 29.0 kg Same
Weight per kWp 53.7 kg/kWp 53.2 kg/kWp Effectively the same
Warranty and degradation
Product warranty 10 yrs 10 yrs Same
Performance warranty 25 yrs 25 yrs Same
Annual degradation 0.72 %/yr 0.72 %/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
#10,072 vs #9,297
TP545HG10TB leads by 775 places
Power density
#10,100 vs #9,312
TP545HG10TB leads by 788 places
Heat behaviour
#12,345 vs #12,345
Tied - the same position in the database
Weight
#7,707 vs #7,047
TP545HG10TB leads by 660 places
Warranty
#9,798 vs #9,798
Tied - the same position in the database
Overall
#9,325 vs #8,965
TP545HG10TB leads by 360 places
05

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06

Written summary

07

Questions about this pairing

Which panel is better: Tata Power Solar TP540HG10TB or Tata Power Solar TP545HG10TB?
According to our database: Tata Power Solar TP545HG10TB has higher module efficiency (21.10% vs 20.90%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Tata Power Solar TP540HG10TB and Tata Power Solar TP545HG10TB?
Tata Power Solar TP540HG10TB has a module efficiency of 20.90%, while Tata Power Solar TP545HG10TB is 21.10%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Tata Power Solar TP540HG10TB use vs Tata Power Solar TP545HG10TB?
Tata Power Solar TP540HG10TB uses PERC cells; Tata Power Solar TP545HG10TB 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 TP540HG10TB and Tata Power Solar TP545HG10TB?
Tata Power Solar TP540HG10TB has a 25 years power warranty; Tata Power Solar TP545HG10TB 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 TP540HG10TB and Tata Power Solar TP545HG10TB bifacial panels?
Both Tata Power Solar TP540HG10TB and Tata Power Solar TP545HG10TB 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.