GoodWe GW15K-ET-20 (ET G2) vs Growatt MID 15KTL3-XH
VS
The verdict
15 differences, and they point both ways
The largest is max dc voltage: 100 V apart. 10 of 25 comparable parameters are identical, with 7 more left out because at least one datasheet does not publish them.
See all 15 differencesHow alike are they
10
of 25 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
15 of 25 parameters
What actually differs
Parameter
GW15K-ET-20 (ET G2)
MID 15KTL3-XH
Difference
Max DC voltage
1000 V
1100 V
100 V apart
Max input current per tracker
16.0 A
32.0 A
16.0 A more headroom
Max efficiency
98.2 %
98.8 %
0.5 pp more efficient
Max PV power
24.00 kW
30.00 kW
6.00 kW apart
DC/AC ratio
1.60
2.00
0.40 more oversizing headroom
Max charge current
40 A
25 A
15 A faster charging
Weight
25.0 kg
31.0 kg
6.0 kg lighter
Weight per kW
1.7 kg/kW
2.1 kg/kW
0.4 kg/kW lighter
Start voltage
150 V
200 V
50 V earlier start
Max AC current
26.1 A
25.0 A
1.1 A apart
MPPT voltage range
120-850 V
160-1000 V
120-850 V vs 160-1000 V
Battery voltage
150-720 V
600-980 V
150-720 V vs 600-980 V
Strings per tracker
1
2
1 string apart
Dimensions
460x496x221 mm
435x580x230 mm
460x496x221 mm vs 435x580x230 mm
Cooling
natural
forced-air
natural vs forced-air
02
Full specification
Parameter
GW15K-ET-20 (ET G2)
MID 15KTL3-XH
Difference
AC output
Rated AC power
15.00 kW
15.00 kW
Same
Max AC power
15.00 kW
15.00 kW
Same
Grid connection
3-phase
3-phase
Same
Nominal AC voltage
400 V
400 V
Same
Max AC current
26.1 A
25.0 A
1.1 A apart
PV input
Max PV power
24.00 kW
30.00 kW
6.00 kW apart
DC/AC ratio
1.60
2.00
+0.40 for MID 15KTL3-XH
Max DC voltage
1000 V
1100 V
100 V apart
MPPT voltage range
120-850 V
160-1000 V
120-850 V vs 160-1000 V
Start voltage
150 V
200 V
-50 V for GW15K-ET-20 (ET G2)
MPP trackers
3
-
Not published by Growatt
Strings per tracker
1
2
1 string apart
Max input current per tracker
16.0 A
32.0 A
+16.0 A for MID 15KTL3-XH
Efficiency
European efficiency
-
98.5 %
Not published by GoodWe
Max efficiency
98.2 %
98.8 %
+0.5 pp for MID 15KTL3-XH
CEC efficiency
-
-
Neither datasheet publishes this
Battery
Battery input
Yes
Yes
Same
Battery voltage
150-720 V
600-980 V
150-720 V vs 600-980 V
Max charge current
40 A
25 A
+15 A for GW15K-ET-20 (ET G2)
Backup power
-
-
Neither datasheet publishes this
Physical
Weight
25.0 kg
31.0 kg
-6.0 kg for GW15K-ET-20 (ET G2)
Weight per kW
1.7 kg/kW
2.1 kg/kW
-0.4 kg/kW for GW15K-ET-20 (ET G2)
Dimensions
460x496x221 mm
435x580x230 mm
460x496x221 mm vs 435x580x230 mm
Ingress protection
IP66
IP66
Same
Cooling
natural
forced-air
natural vs forced-air
Noise
-
-
Neither datasheet publishes this
Max operating temperature
60 °C
60 °C
Same
Connectivity and safety
Wi-Fi
Yes
Yes
Same
Ethernet
-
-
Neither datasheet publishes this
Arc fault protection
Yes
Yes
Same
Integrated DC switch
Yes
Yes
Same
Warranty
Warranty
-
5 yrs
Not published by GoodWe
03
Open all inverters
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04
Written summary
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Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.