TCL Zhonghuan HSM-ND54-GR505 vs Trina Solar TSM-NEG18R.20-515
VS
The verdict
TSM-NEG18R.20-515 leads on the differences that matter
The largest is module efficiency: 0.50 pp more efficient. 12 of 19 comparable parameters are identical.
See all 7 differencesHow alike are they
12
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
7 of 19 parameters
What actually differs
Parameter
HSM-ND54-GR505
TSM-NEG18R.20-515
Difference
Module efficiency
22.70 %
23.20 %
0.50 pp more efficient
Product warranty
25 yrs
15 yrs
10 yrs longer
Weight per kWp
53.5 kg/kWp
45.6 kg/kWp
7.8 kg/kWp lighter
Weight
27.0 kg
23.5 kg
3.5 kg lighter
Power density
227.1 Wp/m²
231.6 Wp/m²
4.5 Wp/m² higher
Rated power
505 Wp
515 Wp
10 W more power
Bifacial
Yes
No
Yes vs No
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 (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
HSM-ND54-GR505
16,944 kWh
TSM-NEG18R.20-515
17,279 kWh
Lifetime gap
335 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
HSM-ND54-GR505
TSM-NEG18R.20-515
Standard test conditions
25 °C
100.0% of rated power
505 W
515 W
Cool, bright day
40 °C
95.7% of rated power
483 W
493 W
Typical summer roof
55 °C
91.3% of rated power
461 W
470 W
Hot roof
70 °C
87.0% of rated power
439 W
448 W
03
Full specification
Parameter
HSM-ND54-GR505
TSM-NEG18R.20-515
Difference
Power and efficiency
Rated power
505 Wp
515 Wp
+10 W for TSM-NEG18R.20-515
Module efficiency
22.70 %
23.20 %
+0.50 pp for TSM-NEG18R.20-515
Power density
227.1 Wp/m²
231.6 Wp/m²
+4.5 Wp/m² for TSM-NEG18R.20-515
Open-circuit voltage
40.14 V
40.90 V
Effectively the same
Voltage at max power
33.90 V
33.90 V
Same
Short-circuit current
15.88 A
15.96 A
Effectively the same
Current at max power
14.90 A
15.20 A
Effectively the same
Temperature
Temperature coefficient
-0.290 %/°C
-0.290 %/°C
Same
Mechanical
Dimensions
1961x1134x30 mm
1961x1134x30 mm
Same
Module area
2.224 m²
2.224 m²
Same
Weight
27.0 kg
23.5 kg
-3.5 kg for TSM-NEG18R.20-515
Weight per kWp
53.5 kg/kWp
45.6 kg/kWp
-7.8 kg/kWp for TSM-NEG18R.20-515
Warranty and degradation
Product warranty
25 yrs
15 yrs
+10 yrs for HSM-ND54-GR505
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.40 %/yr
0.40 %/yr
Same
Technology
Cell technology
TOPCon
TOPCon
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
108
108
Same
Bifacial
Yes
No
Yes vs No
04
14,005 panels
Against the whole database
Efficiency
#3,307
vs
#1,306
TSM-NEG18R.20-515 leads by 2,001 places
Power density
#3,312
vs
#1,473
TSM-NEG18R.20-515 leads by 1,839 places
Heat behaviour
#2,165
vs
#2,165
Tied - the same position in the database
Weight
#7,409
vs
#789
TSM-NEG18R.20-515 leads by 6,620 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#4,152
vs
#5,086
HSM-ND54-GR505 leads by 934 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: TCL Zhonghuan HSM-ND54-GR505 or Trina Solar TSM-NEG18R.20-515?
According to our database: Trina Solar TSM-NEG18R.20-515 has higher module efficiency (23.20% vs 22.70%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of TCL Zhonghuan HSM-ND54-GR505 and Trina Solar TSM-NEG18R.20-515?
TCL Zhonghuan HSM-ND54-GR505 has a module efficiency of 22.70%, while Trina Solar TSM-NEG18R.20-515 is 23.20%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does TCL Zhonghuan HSM-ND54-GR505 use vs Trina Solar TSM-NEG18R.20-515?
TCL Zhonghuan HSM-ND54-GR505 uses TOPCon cells; Trina Solar TSM-NEG18R.20-515 uses TOPCon. 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 TCL Zhonghuan HSM-ND54-GR505 and Trina Solar TSM-NEG18R.20-515?
TCL Zhonghuan HSM-ND54-GR505 has a 30 years power warranty; Trina Solar TSM-NEG18R.20-515 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 TCL Zhonghuan HSM-ND54-GR505 and Trina Solar TSM-NEG18R.20-515 bifacial panels?
TCL Zhonghuan HSM-ND54-GR505 is bifacial (captures light from both faces); Trina Solar TSM-NEG18R.20-515 is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.
Shop prices: See 25 TCL Zhonghuan offers · See 248 Trina 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.