Sigenergy SigenStor BAT stack (3 modules) vs Sigenergy SigenStor BAT 8.0 system (4 modules)
VS
The verdict
8.0 system (4 modules) leads on the differences that matter
The largest is usable energy: 7.02 kWh apart. 8 of 16 comparable parameters are identical, with 17 more left out because at least one datasheet does not publish them.
See all 8 differencesHow alike are they
8
of 16 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
8 of 16 parameters
What actually differs
Parameter
stack (3 modules)
8.0 system (4 modules)
Difference
Usable energy
24.18 kWh
31.20 kWh
7.02 kWh apart
Continuous discharge power
12.00 kW
16.00 kW
4.00 kW more power
Nominal energy
24.18 kWh
32.24 kWh
8.06 kWh apart
Continuous charge power
12.00 kW
16.00 kW
4.00 kW faster charging
Peak discharge power
18.00 kW
24.00 kW
6.00 kW more surge
Weight
237.0 kg
310.0 kg
73.0 kg lighter
Inverter
None (battery only)
Built in (all-in-one)
None (battery only) vs Built in (all-in-one)
Dimensions
1180x850x260 mm
1450x850x260 mm
1180x850x260 mm vs 1450x850x260 mm
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02
Full specification
Parameter
stack (3 modules)
8.0 system (4 modules)
Difference
Capacity
Usable energy
24.18 kWh
31.20 kWh
7.02 kWh apart
Nominal energy
24.18 kWh
32.24 kWh
8.06 kWh apart
Depth of discharge
-
-
Neither datasheet publishes this
Max system capacity
48.4 kWh
48.4 kWh
Same
Modules per stack
1-6
1-6
Same
Power
Continuous discharge power
12.00 kW
16.00 kW
+4.00 kW for 8.0 system (4 modules)
Continuous charge power
12.00 kW
16.00 kW
+4.00 kW for 8.0 system (4 modules)
Peak discharge power
18.00 kW
24.00 kW
+6.00 kW for 8.0 system (4 modules)
Power per kWh
0.50 kW/kWh
0.51 kW/kWh
Effectively the same
Efficiency and lifetime
Round-trip efficiency
-
-
Neither datasheet publishes this
Cycle life
-
-
Neither datasheet publishes this
Cycle test depth
-
-
Neither datasheet publishes this
Capacity at end of life
-
-
Neither datasheet publishes this
Self-discharge
-
-
Neither datasheet publishes this
Electrical
Voltage class
-
-
Neither datasheet publishes this
Nominal voltage
-
-
Neither datasheet publishes this
Operating voltage
-
-
Neither datasheet publishes this
Cell chemistry
LFP
LFP
Same
Active cell balancing
-
-
Neither datasheet publishes this
Thermal management
-
-
Neither datasheet publishes this
Built-in inverter
Inverter
None (battery only)
Built in (all-in-one)
None (battery only) vs Built in (all-in-one)
Inverter power
-
-
Neither datasheet publishes this
Grid connection
-
-
Neither datasheet publishes this
Backup power
-
-
Neither datasheet publishes this
Physical
Weight
237.0 kg
310.0 kg
-73.0 kg for stack (3 modules)
Weight per kWh
9.8 kg/kWh
9.9 kg/kWh
Effectively the same
Dimensions
1180x850x260 mm
1450x850x260 mm
1180x850x260 mm vs 1450x850x260 mm
Ingress protection
IP66
IP66
Same
Outdoor-rated
-
-
Neither datasheet publishes this
Min operating temperature
-20 °C
-20 °C
Same
Max operating temperature
55 °C
55 °C
Same
Warranty
Warranty
-
-
Neither datasheet publishes this
Warranted throughput
-
-
Neither datasheet publishes this
03
Open all batteries
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Sigenergy SigenStor BAT 8.0 system (4 modules) vs Sigenergy SigenStor BAT stack (4 modules)
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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.