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M156-WF-600 vs T144-GF-585Wp 6 of 19 identical Swap Change panels

Goldi Solar GS10-M156-WF-600 vs Goldi Solar GS10-T144-GF-585Wp

Goldi Solar GS10-M156-WF-600
Goldi Solar
GS10-M156-WF-600
600 Wp 21.50 % PERC
Open panel page Datasheet PDF
VS
Goldi Solar GS10-T144-GF-585Wp
Goldi Solar
GS10-T144-GF-585Wp
585 Wp 22.65 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

T144-GF-585Wp leads on the differences that matter

The largest is module efficiency: 1.15 pp more efficient. 6 of 19 comparable parameters are identical.

See all 13 differences
How alike are they
6 of 19 comparable
parameters are identical
identical differs
01

What actually differs

13 of 19 parameters
Parameter M156-WF-600 T144-GF-585Wp Difference
Module efficiency 21.50 % 22.65 % 1.15 pp more efficient
Temperature coefficient -0.340 %/°C -0.300 %/°C 0.040 %/°C better in heat
Performance warranty 25 yrs 30 yrs 5 yrs longer
Power density 214.8 Wp/m² 226.5 Wp/m² 11.6 Wp/m² higher
Annual degradation 0.55 %/yr 0.40 %/yr 0.15 %/yr slower
Module area 2.793 m² 2.583 m² 0.210 m² apart
Rated power 600 Wp 585 Wp 15 W more power
Cell technology PERC TOPCon PERC vs TOPCon
Cell count 156 144 12 cells apart
Bifacial No Yes No vs Yes
Open-circuit voltage 54.15 V 53.10 V 1.05 V apart
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-600
19,445 kWh
T144-GF-585Wp
19,628 kWh
Lifetime gap
183 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario M156-WF-600 T144-GF-585Wp
Standard test conditions 25 °C 100.0% of rated power 600 W 585 W
Cool, bright day 40 °C 94.9% of rated power 569 W 559 W
Typical summer roof 55 °C 89.8% of rated power 539 W 532 W
Hot roof 70 °C 84.7% of rated power 508 W 506 W
03

Full specification

Parameter M156-WF-600 T144-GF-585Wp Difference
Power and efficiency
Rated power 600 Wp 585 Wp +15 W for M156-WF-600
Module efficiency 21.50 % 22.65 % +1.15 pp for T144-GF-585Wp
Power density 214.8 Wp/m² 226.5 Wp/m² +11.6 Wp/m² for T144-GF-585Wp
Open-circuit voltage 54.15 V 53.10 V 1.05 V apart
Voltage at max power 45.53 V 45.55 V Effectively the same
Short-circuit current 14.07 A 13.64 A Effectively the same
Current at max power 13.18 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 52.5 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

Against the whole database

14,005 panels
Efficiency
#7,958 vs #3,522
T144-GF-585Wp leads by 4,436 places
Power density
#8,109 vs #3,500
T144-GF-585Wp leads by 4,609 places
Heat behaviour
#8,778 vs #6,093
T144-GF-585Wp leads by 2,685 places
Weight
#6,043 vs #7,897
M156-WF-600 leads by 1,854 places
Warranty
#9,798 vs #21
T144-GF-585Wp leads by 9,777 places
Overall
#5,911 vs #4,105
T144-GF-585Wp leads by 1,806 places
05

More useful comparisons

Open the full database
Same series, other bin
Goldi Solar
Goldi Solar GS10-M156-WF-600 vs Goldi Solar GS10-M156-WF-595
One difference: module efficiency
Same series, other bin
Goldi Solar
Goldi Solar GS10-M156-WF-600 vs Goldi Solar GS10-T144-GF-595Wp
11 differences, the largest is module efficiency
Same series, other bin
Goldi Solar
Goldi Solar GS10-M156-WF-600 vs Goldi Solar GS10-M156-WF-590
3 differences, the largest is module efficiency
Same series, other bin
Goldi Solar
Goldi Solar GS10-M156-WF-600 vs Goldi Solar GS10-T144-GF-590Wp
13 differences, the largest is module efficiency
Same series, other bin
Goldi Solar
Goldi Solar GS10-M156-WF-600 vs Goldi Solar GS10-M156-WF-585
3 differences, the largest is module efficiency
Same series, other bin
Goldi Solar
Goldi Solar GS10-M156-WF-600 vs Goldi Solar GS10-M156-WF-580
3 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Goldi Solar GS10-M156-WF-600 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 21.50%); 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-600 and Goldi Solar GS10-T144-GF-585Wp?
Goldi Solar GS10-M156-WF-600 has a module efficiency of 21.50%, 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-600 use vs Goldi Solar GS10-T144-GF-585Wp?
Goldi Solar GS10-M156-WF-600 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-600 and Goldi Solar GS10-T144-GF-585Wp?
Goldi Solar GS10-M156-WF-600 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-600 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-600 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.