Tata Power Solar TP540HG10B-545 vs Tata Power Solar TP550HG10TB
VS
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 differencesHow alike are they
13
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
6 of 19 parameters
What actually differs
Parameter
TP540HG10B-545
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
60.6 kg/kWp
52.7 kg/kWp
7.8 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-545
17,423 kWh
TP550HG10TB
17,238 kWh
Lifetime gap
185 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
TP540HG10B-545
TP550HG10TB
Standard test conditions
25 °C
100.0% of rated power
545 W
550 W
Cool, bright day
40 °C
94.5% of rated power
515 W
520 W
Typical summer roof
55 °C
88.9% of rated power
485 W
491 W
Hot roof
70 °C
83.3% of rated power
454 W
461 W
03
Full specification
Parameter
TP540HG10B-545
TP550HG10TB
Difference
Power and efficiency
Rated power
545 Wp
550 Wp
Effectively the same
Module efficiency
21.10 %
21.29 %
Effectively the same
Power density
211.0 Wp/m²
212.9 Wp/m²
Effectively the same
Open-circuit voltage
49.60 V
49.75 V
Effectively the same
Voltage at max power
42.55 V
42.62 V
Effectively the same
Short-circuit current
13.32 A
13.42 A
Effectively the same
Current at max power
12.81 A
12.90 A
Effectively the 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
60.6 kg/kWp
52.7 kg/kWp
-7.8 kg/kWp for TP550HG10TB
Warranty and degradation
Product warranty
12 yrs
10 yrs
+2 yrs for TP540HG10B-545
Performance warranty
30 yrs
25 yrs
+5 yrs for TP540HG10B-545
Annual degradation
0.60 %/yr
0.72 %/yr
-0.12 %/yr for TP540HG10B-545
Technology
Cell technology
PERC
PERC
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
144
144
Same
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#9,297
vs
#8,708
TP550HG10TB leads by 589 places
Power density
#9,312
vs
#8,497
TP550HG10TB leads by 815 places
Heat behaviour
#13,081
vs
#12,345
TP550HG10TB leads by 736 places
Weight
#12,489
vs
#6,373
TP550HG10TB leads by 6,116 places
Warranty
#21
vs
#9,798
TP540HG10B-545 leads by 9,777 places
Overall
#7,457
vs
#8,571
TP540HG10B-545 leads by 1,114 places
05
Open the full database
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06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Tata Power Solar TP540HG10B-545 or Tata Power Solar TP550HG10TB?
According to our database: Tata Power Solar TP550HG10TB has higher module efficiency (21.29% vs 21.10%); 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-545 and Tata Power Solar TP550HG10TB?
Tata Power Solar TP540HG10B-545 has a module efficiency of 21.10%, 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-545 use vs Tata Power Solar TP550HG10TB?
Tata Power Solar TP540HG10B-545 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-545 and Tata Power Solar TP550HG10TB?
Tata Power Solar TP540HG10B-545 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-545 and Tata Power Solar TP550HG10TB bifacial panels?
Both Tata Power Solar TP540HG10B-545 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.