SMA Solar SB2.0-1VL-40 (Sunny Boy 2.0) vs Deye SUN-2K-G
VS
The verdict
SUN-2K-G leads on the differences that matter
The largest is european efficiency: 0.7 pp more efficient. 13 of 25 comparable parameters are identical, with 7 more left out because at least one datasheet does not publish them.
See all 12 differencesHow alike are they
13
of 25 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
12 of 25 parameters
What actually differs
Parameter
SB2.0-1VL-40 (Sunny Boy 2.0)
SUN-2K-G
Difference
European efficiency
96.4 %
97.1 %
0.7 pp more efficient
Max DC voltage
600 V
550 V
50 V apart
Max input current per tracker
10.0 A
12.5 A
2.5 A more headroom
Max AC power
2.00 kW
2.20 kW
0.20 kW apart
Max PV power
4.00 kW
2.60 kW
1.40 kW apart
DC/AC ratio
2.00
1.30
0.70 more oversizing headroom
Weight
9.2 kg
6.0 kg
3.2 kg lighter
Weight per kW
4.6 kg/kW
3.0 kg/kW
1.6 kg/kW lighter
Max operating temperature
60 °C
65 °C
5 °C more heat tolerant
MPPT voltage range
160-500 V
70-550 V
160-500 V vs 70-550 V
Max AC current
9.0 A
9.6 A
0.6 A apart
Dimensions
357x460x122 mm
310x330x115 mm
357x460x122 mm vs 310x330x115 mm
02
Full specification
Parameter
SB2.0-1VL-40 (Sunny Boy 2.0)
SUN-2K-G
Difference
AC output
Rated AC power
2.00 kW
2.00 kW
Same
Max AC power
2.00 kW
2.20 kW
0.20 kW apart
Grid connection
Single-phase
Single-phase
Same
Nominal AC voltage
230 V
230 V
Same
Max AC current
9.0 A
9.6 A
0.6 A apart
PV input
Max PV power
4.00 kW
2.60 kW
1.40 kW apart
DC/AC ratio
2.00
1.30
+0.70 for SB2.0-1VL-40 (Sunny Boy 2.0)
Max DC voltage
600 V
550 V
50 V apart
MPPT voltage range
160-500 V
70-550 V
160-500 V vs 70-550 V
Start voltage
80 V
80 V
Same
MPP trackers
1
1
Same
Strings per tracker
1
1
Same
Max input current per tracker
10.0 A
12.5 A
+2.5 A for SUN-2K-G
Efficiency
European efficiency
96.4 %
97.1 %
+0.7 pp for SUN-2K-G
Max efficiency
97.2 %
97.3 %
Effectively the same
CEC efficiency
-
-
Neither datasheet publishes this
Battery
Battery input
-
-
Neither datasheet publishes this
Battery voltage
-
-
Neither datasheet publishes this
Max charge current
-
-
Neither datasheet publishes this
Backup power
-
-
Neither datasheet publishes this
Physical
Weight
9.2 kg
6.0 kg
-3.2 kg for SUN-2K-G
Weight per kW
4.6 kg/kW
3.0 kg/kW
-1.6 kg/kW for SUN-2K-G
Dimensions
357x460x122 mm
310x330x115 mm
357x460x122 mm vs 310x330x115 mm
Ingress protection
IP65
IP65
Same
Cooling
natural
natural
Same
Noise
25 dB
25 dB
Same
Max operating temperature
60 °C
65 °C
+5 °C for SUN-2K-G
Connectivity and safety
Wi-Fi
Yes
Yes
Same
Ethernet
Yes
Yes
Same
Arc fault protection
-
-
Neither datasheet publishes this
Integrated DC switch
Yes
Yes
Same
Warranty
Warranty
5 yrs
-
Not published by Deye
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.

