Goldi Solar GS12R-T132-GF-615 vs Goldi Solar GS12R-T132-GF-620
VS
The verdict
Identical on every published parameter
All 19 comparable parameters agree. Two records this alike are usually one panel sold under two names, or two bins of the same production line - decide on price and on who you would rather buy from.
How alike are they
19
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
0 of 19 parameters
What actually differs
Every comparable parameter agrees. The full specification is below.
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 (-0.300 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
615
20,634 kWh
620
20,802 kWh
Lifetime gap
168 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
615
620
Standard test conditions
25 °C
100.0% of rated power
615 W
620 W
Cool, bright day
40 °C
95.5% of rated power
587 W
592 W
Typical summer roof
55 °C
91.0% of rated power
560 W
564 W
Hot roof
70 °C
86.5% of rated power
532 W
536 W
03
Full specification
Parameter
615
620
Difference
Power and efficiency
Rated power
615 Wp
620 Wp
Effectively the same
Module efficiency
22.76 %
22.95 %
Effectively the same
Power density
227.7 Wp/m²
229.5 Wp/m²
Effectively the same
Open-circuit voltage
49.30 V
49.60 V
Effectively the same
Voltage at max power
40.90 V
41.10 V
Effectively the same
Short-circuit current
15.89 A
15.92 A
Effectively the same
Current at max power
15.04 A
15.09 A
Effectively the same
Temperature
Temperature coefficient
-0.300 %/°C
-0.300 %/°C
Same
Mechanical
Dimensions
2382x1134x30 mm
2382x1134x30 mm
Same
Module area
2.701 m²
2.701 m²
Same
Weight
33.7 kg
33.7 kg
Same
Weight per kWp
54.8 kg/kWp
54.4 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
12 yrs
12 yrs
Same
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
132
132
Same
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#3,201
vs
#2,268
620 leads by 933 places
Power density
#3,077
vs
#2,191
620 leads by 886 places
Heat behaviour
#6,093
vs
#6,093
Tied - the same position in the database
Weight
#9,202
vs
#8,659
620 leads by 543 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#2,968
vs
#2,594
620 leads by 374 places
05
Open the full database
More useful comparisons
Same series, other bin
Goldi Solar
Goldi Solar GS12R-T132-GF-615 vs Goldi Solar GS12-T132-GF-715
9 differences, the largest is rated power
Same series, other bin
Goldi Solar
Goldi Solar GS12R-T132-GF-615 vs Goldi Solar GS12-T132-GF-710
8 differences, the largest is rated power
Same series, other bin
Goldi Solar
Goldi Solar GS12R-T132-GF-615 vs Goldi Solar GS12-T132-GF-705
8 differences, the largest is rated power
Same series, other bin
Goldi Solar
Goldi Solar GS12R-T132-GF-615 vs Goldi Solar GS12-T132-GF-700
9 differences, the largest is rated power
Same series, other bin
Goldi Solar
Goldi Solar GS12R-T132-GF-615 vs Goldi Solar GS12-T132-GF-695
10 differences, the largest is rated power
Same series, other bin
Goldi Solar
Goldi Solar GS12R-T132-GF-615 vs Goldi Solar GS12-T132-GF-690
10 differences, the largest is rated power
06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Goldi Solar GS12R-T132-GF-615 or Goldi Solar GS12R-T132-GF-620?
According to our database: Goldi Solar GS12R-T132-GF-620 has higher module efficiency (22.95% vs 22.76%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Goldi Solar GS12R-T132-GF-615 and Goldi Solar GS12R-T132-GF-620?
Goldi Solar GS12R-T132-GF-615 has a module efficiency of 22.76%, while Goldi Solar GS12R-T132-GF-620 is 22.95%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Goldi Solar GS12R-T132-GF-615 use vs Goldi Solar GS12R-T132-GF-620?
Goldi Solar GS12R-T132-GF-615 uses TOPCon cells; Goldi Solar GS12R-T132-GF-620 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 GS12R-T132-GF-615 and Goldi Solar GS12R-T132-GF-620?
Goldi Solar GS12R-T132-GF-615 has a 30 years power warranty; Goldi Solar GS12R-T132-GF-620 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 GS12R-T132-GF-615 and Goldi Solar GS12R-T132-GF-620 bifacial panels?
Both Goldi Solar GS12R-T132-GF-615 and Goldi Solar GS12R-T132-GF-620 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.
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.