Tata Power Solar TP590LG10B vs Adani Solar ASB-M10-144-520
VS
The verdict
12 differences, and they point both ways
The largest is module efficiency: 0.93 pp more efficient. 7 of 19 comparable parameters are identical.
See all 12 differencesHow alike are they
7
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
12 of 19 parameters
What actually differs
Parameter
TP590LG10B
ASB-M10-144-520
Difference
Module efficiency
21.18 %
20.25 %
0.93 pp more efficient
Rated power
590 Wp
520 Wp
70 W more power
Temperature coefficient
-0.370 %/°C
-0.340 %/°C
0.030 %/°C better in heat
Power density
211.8 Wp/m²
202.5 Wp/m²
9.3 Wp/m² higher
Weight
36.0 kg
28.0 kg
8.0 kg lighter
Annual degradation
0.60 %/yr
0.45 %/yr
0.15 %/yr slower
Weight per kWp
61.0 kg/kWp
53.8 kg/kWp
7.2 kg/kWp lighter
Open-circuit voltage
53.90 V
48.60 V
5.30 V apart
Module area
2.785 m²
2.567 m²
0.218 m² apart
Voltage at max power
46.18 V
41.18 V
5.00 V apart
Cell count
156
144
12 cells apart
Dimensions
2456x1134x35 mm
2266x1133x35 mm
2456x1134x35 mm vs 2266x1133x35 mm
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
TP590LG10B
18,861 kWh
ASB-M10-144-520
17,124 kWh
Lifetime gap
1,737 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
TP590LG10B
ASB-M10-144-520
Standard test conditions
25 °C
100.0% of rated power
590 W
520 W
Cool, bright day
40 °C
94.5% of rated power
557 W
493 W
Typical summer roof
55 °C
88.9% of rated power
525 W
467 W
Hot roof
70 °C
83.3% of rated power
492 W
440 W
03
Full specification
Parameter
TP590LG10B
ASB-M10-144-520
Difference
Power and efficiency
Rated power
590 Wp
520 Wp
+70 W for TP590LG10B
Module efficiency
21.18 %
20.25 %
+0.93 pp for TP590LG10B
Power density
211.8 Wp/m²
202.5 Wp/m²
+9.3 Wp/m² for TP590LG10B
Open-circuit voltage
53.90 V
48.60 V
5.30 V apart
Voltage at max power
46.18 V
41.18 V
5.00 V apart
Short-circuit current
13.29 A
13.41 A
Effectively the same
Current at max power
12.78 A
12.65 A
Effectively the same
Temperature
Temperature coefficient
-0.370 %/°C
-0.340 %/°C
+0.030 %/°C for ASB-M10-144-520
Mechanical
Dimensions
2456x1134x35 mm
2266x1133x35 mm
2456x1134x35 mm vs 2266x1133x35 mm
Module area
2.785 m²
2.567 m²
0.218 m² apart
Weight
36.0 kg
28.0 kg
-8.0 kg for ASB-M10-144-520
Weight per kWp
61.0 kg/kWp
53.8 kg/kWp
-7.2 kg/kWp for ASB-M10-144-520
Warranty and degradation
Product warranty
12 yrs
12 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.60 %/yr
0.45 %/yr
-0.15 %/yr for ASB-M10-144-520
Technology
Cell technology
PERC
PERC
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
156
144
12 cells apart
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#9,216
vs
#11,878
TP590LG10B leads by 2,662 places
Power density
#9,158
vs
#11,845
TP590LG10B leads by 2,687 places
Heat behaviour
#13,081
vs
#8,778
ASB-M10-144-520 leads by 4,303 places
Weight
#12,577
vs
#7,897
ASB-M10-144-520 leads by 4,680 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#5,685
vs
#9,282
TP590LG10B leads by 3,597 places
05
Open the full database
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06
Written summary
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07
Questions about this pairing
Which panel is better: Tata Power Solar TP590LG10B or Adani Solar ASB-M10-144-520?
According to our database: Tata Power Solar TP590LG10B has higher module efficiency (21.18% vs 20.25%); Adani Solar ASB-M10-144-520 tolerates heat better (temp coeff -0.340%/°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 TP590LG10B and Adani Solar ASB-M10-144-520?
Tata Power Solar TP590LG10B has a module efficiency of 21.18%, while Adani Solar ASB-M10-144-520 is 20.25%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Tata Power Solar TP590LG10B use vs Adani Solar ASB-M10-144-520?
Tata Power Solar TP590LG10B uses PERC cells; Adani Solar ASB-M10-144-520 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 TP590LG10B and Adani Solar ASB-M10-144-520?
Tata Power Solar TP590LG10B has a 30 years power warranty; Adani Solar ASB-M10-144-520 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 TP590LG10B and Adani Solar ASB-M10-144-520 bifacial panels?
Both Tata Power Solar TP590LG10B and Adani Solar ASB-M10-144-520 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.
Shop prices: See 2 Adani Solar offers
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.