Goldi Solar GS10-M156-WF-595 vs Goldi Solar GS10-T144-GF-585Wp
VS
The verdict
T144-GF-585Wp leads on the differences that matter
The largest is module efficiency: 1.35 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
M156-WF-595
T144-GF-585Wp
Difference
Module efficiency
21.30 %
22.65 %
1.35 pp more efficient
Temperature coefficient
-0.340 %/°C
-0.300 %/°C
0.040 %/°C better in heat
Power density
213.0 Wp/m²
226.5 Wp/m²
13.4 Wp/m² higher
Performance warranty
25 yrs
30 yrs
5 yrs longer
Annual degradation
0.55 %/yr
0.40 %/yr
0.15 %/yr slower
Module area
2.793 m²
2.583 m²
0.210 m² apart
Cell technology
PERC
TOPCon
PERC vs TOPCon
Rated power
595 Wp
585 Wp
10 W more power
Cell count
156
144
12 cells apart
Bifacial
No
Yes
No vs Yes
Dimensions
2465x1133x35 mm
2278x1134x30 mm
2465x1133x35 mm vs 2278x1134x30 mm
Cell type
Polycrystalline
Monocrystalline
Polycrystalline vs Monocrystalline
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
M156-WF-595
19,283 kWh
T144-GF-585Wp
19,628 kWh
Lifetime gap
345 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
M156-WF-595
T144-GF-585Wp
Standard test conditions
25 °C
100.0% of rated power
595 W
585 W
Cool, bright day
40 °C
94.9% of rated power
565 W
559 W
Typical summer roof
55 °C
89.8% of rated power
534 W
532 W
Hot roof
70 °C
84.7% of rated power
504 W
506 W
03
Full specification
Parameter
M156-WF-595
T144-GF-585Wp
Difference
Power and efficiency
Rated power
595 Wp
585 Wp
+10 W for M156-WF-595
Module efficiency
21.30 %
22.65 %
+1.35 pp for T144-GF-585Wp
Power density
213.0 Wp/m²
226.5 Wp/m²
+13.4 Wp/m² for T144-GF-585Wp
Open-circuit voltage
54.01 V
53.10 V
Effectively the same
Voltage at max power
45.39 V
45.55 V
Effectively the same
Short-circuit current
14.00 A
13.64 A
Effectively the same
Current at max power
13.11 A
12.85 A
Effectively the same
Temperature
Temperature coefficient
-0.340 %/°C
-0.300 %/°C
+0.040 %/°C for T144-GF-585Wp
Mechanical
Dimensions
2465x1133x35 mm
2278x1134x30 mm
2465x1133x35 mm vs 2278x1134x30 mm
Module area
2.793 m²
2.583 m²
0.210 m² apart
Weight
31.5 kg
31.5 kg
Same
Weight per kWp
52.9 kg/kWp
53.8 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
12 yrs
12 yrs
Same
Performance warranty
25 yrs
30 yrs
+5 yrs for T144-GF-585Wp
Annual degradation
0.55 %/yr
0.40 %/yr
-0.15 %/yr for T144-GF-585Wp
Technology
Cell technology
PERC
TOPCon
PERC vs TOPCon
Cell type
Polycrystalline
Monocrystalline
Polycrystalline vs Monocrystalline
Cell count
156
144
12 cells apart
Bifacial
No
Yes
No vs Yes
04
14,005 panels
Against the whole database
Efficiency
#8,519
vs
#3,522
T144-GF-585Wp leads by 4,997 places
Power density
#8,487
vs
#3,500
T144-GF-585Wp leads by 4,987 places
Heat behaviour
#8,778
vs
#6,093
T144-GF-585Wp leads by 2,685 places
Weight
#6,657
vs
#7,897
M156-WF-595 leads by 1,240 places
Warranty
#9,798
vs
#21
T144-GF-585Wp leads by 9,777 places
Overall
#6,383
vs
#4,105
T144-GF-585Wp leads by 2,278 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: Goldi Solar GS10-M156-WF-595 or Goldi Solar GS10-T144-GF-585Wp?
According to our database: Goldi Solar GS10-T144-GF-585 Wp has higher module efficiency (22.65% vs 21.30%); Goldi Solar GS10-T144-GF-585 Wp tolerates heat better (temp coeff -0.300%/°C vs -0.340%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Goldi Solar GS10-M156-WF-595 and Goldi Solar GS10-T144-GF-585Wp?
Goldi Solar GS10-M156-WF-595 has a module efficiency of 21.30%, while Goldi Solar GS10-T144-GF-585 Wp is 22.65%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Goldi Solar GS10-M156-WF-595 use vs Goldi Solar GS10-T144-GF-585Wp?
Goldi Solar GS10-M156-WF-595 uses PERC cells; Goldi Solar GS10-T144-GF-585 Wp 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 Goldi Solar GS10-M156-WF-595 and Goldi Solar GS10-T144-GF-585Wp?
Goldi Solar GS10-M156-WF-595 has a 25 years power warranty; Goldi Solar GS10-T144-GF-585 Wp 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 Goldi Solar GS10-M156-WF-595 and Goldi Solar GS10-T144-GF-585Wp bifacial panels?
Goldi Solar GS10-T144-GF-585 Wp is bifacial (captures light from both faces); Goldi Solar GS10-M156-WF-595 is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.
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.