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

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

Goldi Solar GS10-T144-GF-585Wp
Goldi Solar
GS10-T144-GF-585Wp
585 Wp 22.65 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Goldi Solar GS10-M156-WF-600
Goldi Solar
GS10-M156-WF-600
600 Wp 21.50 % PERC
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 T144-GF-585Wp M156-WF-600 Difference
Module efficiency 22.65 % 21.50 % 1.15 pp more efficient
Temperature coefficient -0.300 %/°C -0.340 %/°C 0.040 %/°C better in heat
Performance warranty 30 yrs 25 yrs 5 yrs longer
Power density 226.5 Wp/m² 214.8 Wp/m² 11.6 Wp/m² higher
Annual degradation 0.40 %/yr 0.55 %/yr 0.15 %/yr slower
Module area 2.583 m² 2.793 m² 0.210 m² apart
Rated power 585 Wp 600 Wp 15 W more power
Cell technology TOPCon PERC TOPCon vs PERC
Cell count 144 156 12 cells apart
Bifacial Yes No Yes vs No
Open-circuit voltage 53.10 V 54.15 V 1.05 V apart
Dimensions 2278x1134x30 mm 2465x1133x35 mm 2278x1134x30 mm vs 2465x1133x35 mm
Cell type Monocrystalline Polycrystalline Monocrystalline vs Polycrystalline
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
T144-GF-585Wp
19,628 kWh
M156-WF-600
19,445 kWh
Lifetime gap
183 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario T144-GF-585Wp M156-WF-600
Standard test conditions 25 °C 100.0% of rated power 585 W 600 W
Cool, bright day 40 °C 94.9% of rated power 559 W 569 W
Typical summer roof 55 °C 89.8% of rated power 532 W 539 W
Hot roof 70 °C 84.7% of rated power 506 W 508 W
03

Full specification

Parameter T144-GF-585Wp M156-WF-600 Difference
Power and efficiency
Rated power 585 Wp 600 Wp +15 W for M156-WF-600
Module efficiency 22.65 % 21.50 % +1.15 pp for T144-GF-585Wp
Power density 226.5 Wp/m² 214.8 Wp/m² +11.6 Wp/m² for T144-GF-585Wp
Open-circuit voltage 53.10 V 54.15 V 1.05 V apart
Voltage at max power 45.55 V 45.53 V Effectively the same
Short-circuit current 13.64 A 14.07 A Effectively the same
Current at max power 12.85 A 13.18 A Effectively the same
Temperature
Temperature coefficient -0.300 %/°C -0.340 %/°C +0.040 %/°C for T144-GF-585Wp
Mechanical
Dimensions 2278x1134x30 mm 2465x1133x35 mm 2278x1134x30 mm vs 2465x1133x35 mm
Module area 2.583 m² 2.793 m² 0.210 m² apart
Weight 31.5 kg 31.5 kg Same
Weight per kWp 53.8 kg/kWp 52.5 kg/kWp Effectively the same
Warranty and degradation
Product warranty 12 yrs 12 yrs Same
Performance warranty 30 yrs 25 yrs +5 yrs for T144-GF-585Wp
Annual degradation 0.40 %/yr 0.55 %/yr -0.15 %/yr for T144-GF-585Wp
Technology
Cell technology TOPCon PERC TOPCon vs PERC
Cell type Monocrystalline Polycrystalline Monocrystalline vs Polycrystalline
Cell count 144 156 12 cells apart
Bifacial Yes No Yes vs No
04

Against the whole database

14,005 panels
Efficiency
#3,522 vs #7,958
T144-GF-585Wp leads by 4,436 places
Power density
#3,500 vs #8,109
T144-GF-585Wp leads by 4,609 places
Heat behaviour
#6,093 vs #8,778
T144-GF-585Wp leads by 2,685 places
Weight
#7,897 vs #6,043
M156-WF-600 leads by 1,854 places
Warranty
#21 vs #9,798
T144-GF-585Wp leads by 9,777 places
Overall
#4,105 vs #5,911
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-T144-GF-585Wp vs Goldi Solar GS10-M156-WF-595
12 differences, the largest is module efficiency
Same series, other bin
Goldi Solar
Goldi Solar GS10-T144-GF-585Wp vs Goldi Solar GS10-T144-GF-595Wp
3 differences, the largest is module efficiency
Same series, other bin
Goldi Solar
Goldi Solar GS10-T144-GF-585Wp vs Goldi Solar GS10-M156-WF-590
11 differences, the largest is module efficiency
Same series, other bin
Goldi Solar
Goldi Solar GS10-T144-GF-585Wp vs Goldi Solar GS10-T144-GF-590Wp
The same specification on paper
Same series, other bin
Goldi Solar
Goldi Solar GS10-T144-GF-585Wp vs Goldi Solar GS10-M156-WF-585
11 differences, the largest is module efficiency
Same series, other bin
Goldi Solar
Goldi Solar GS10-T144-GF-585Wp vs Goldi Solar GS10-M156-WF-580
11 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Goldi Solar GS10-T144-GF-585Wp or Goldi Solar GS10-M156-WF-600?
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-T144-GF-585Wp and Goldi Solar GS10-M156-WF-600?
Goldi Solar GS10-T144-GF-585 Wp has a module efficiency of 22.65%, while Goldi Solar GS10-M156-WF-600 is 21.50%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Goldi Solar GS10-T144-GF-585Wp use vs Goldi Solar GS10-M156-WF-600?
Goldi Solar GS10-T144-GF-585 Wp uses TOPCon cells; Goldi Solar GS10-M156-WF-600 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 Goldi Solar GS10-T144-GF-585Wp and Goldi Solar GS10-M156-WF-600?
Goldi Solar GS10-T144-GF-585 Wp has a 30 years power warranty; Goldi Solar GS10-M156-WF-600 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 Goldi Solar GS10-T144-GF-585Wp and Goldi Solar GS10-M156-WF-600 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.