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LUNA2000-21-S1 vs Tower T21 3 of 15 identical Swap Change batteries

Huawei LUNA2000-21-S1 vs Dyness Tower T21

Huawei LUNA2000-21-S1
LUNA2000-21-S1
20.7 kWh LFP HV
VS
Tower T21
21.31 kWh HV
The verdict

12 differences, and they point both ways

The largest is usable energy: 0.61 kWh apart. 3 of 15 comparable parameters are identical, with 18 more left out because at least one datasheet does not publish them.

See all 12 differences
How alike are they
3 of 15 comparable
parameters are identical
identical differs not published
01

What actually differs

12 of 15 parameters
Parameter LUNA2000-21-S1 Tower T21 Difference
Usable energy 20.70 kWh 21.31 kWh 0.61 kWh apart
Continuous discharge power 10.50 kW 12.78 kW 2.28 kW more power
Nominal energy 20.70 kWh 21.31 kWh 0.61 kWh apart
Continuous charge power 10.50 kW 12.78 kW 2.28 kW faster charging
Weight 216.0 kg 269.0 kg 53.0 kg lighter
Weight per kWh 10.4 kg/kWh 12.6 kg/kWh 2.2 kg/kWh lighter
Min operating temperature -20 °C -10 °C 10 °C more cold tolerant
Max operating temperature 55 °C 50 °C 5 °C more heat tolerant
Power per kWh 0.51 kW/kWh 0.60 kW/kWh 0.09 kW/kWh more power for its size
Ingress protection IP66 IP54 IP66 vs IP54
Modules per stack 1-3 2-6 1-3 vs 2-6
Dimensions 1230x590x255 mm 1500x504x380 mm 1230x590x255 mm vs 1500x504x380 mm
02

Price offers

3 shops we track
Shop LUNA2000-21-S1 Tower T21 At this shop
Sklep Soltech Poland 31 129.55 zł net - Only LUNA2000-21-S1
www.pvundsolar.at Austria 9 049.20 € incl. VAT - Only LUNA2000-21-S1
www.solar-outlet.nl Netherlands 8 658.95 € incl. VAT - Only LUNA2000-21-S1

All 3 offers for LUNA2000-21-S1

Shop prices by brand: See 69 Huawei offers · See 20 Dyness offers

03

Full specification

Parameter LUNA2000-21-S1 Tower T21 Difference
Capacity
Usable energy 20.70 kWh 21.31 kWh 0.61 kWh apart
Nominal energy 20.70 kWh 21.31 kWh 0.61 kWh apart
Depth of discharge 100 % 100 % Same
Max system capacity 20.7 kWh - Not published by Dyness
Modules per stack 1-3 2-6 1-3 vs 2-6
Power
Continuous discharge power 10.50 kW 12.78 kW +2.28 kW for Tower T21
Continuous charge power 10.50 kW 12.78 kW +2.28 kW for Tower T21
Peak discharge power - - Neither datasheet publishes this
Power per kWh 0.51 kW/kWh 0.60 kW/kWh +0.09 kW/kWh for Tower T21
Efficiency and lifetime
Round-trip efficiency - - Neither datasheet publishes this
Cycle life - 6000 cycles Not published by Huawei
Cycle test depth 100 % - Not published by Dyness
Capacity at end of life - - Neither datasheet publishes this
Self-discharge - - Neither datasheet publishes this
Electrical
Voltage class High voltage High voltage Same
Nominal voltage - 576 V Not published by Huawei
Operating voltage 350-980 V - Not published by Dyness
Cell chemistry LFP - Not published by Dyness
Active cell balancing - - Neither datasheet publishes this
Thermal management - - Neither datasheet publishes this
Built-in inverter
Inverter None (battery only) None (battery only) Same
Inverter power - - Neither datasheet publishes this
Grid connection - - Neither datasheet publishes this
Backup power - - Neither datasheet publishes this
Physical
Weight 216.0 kg 269.0 kg -53.0 kg for LUNA2000-21-S1
Weight per kWh 10.4 kg/kWh 12.6 kg/kWh -2.2 kg/kWh for LUNA2000-21-S1
Dimensions 1230x590x255 mm 1500x504x380 mm 1230x590x255 mm vs 1500x504x380 mm
Ingress protection IP66 IP54 IP66 vs IP54
Outdoor-rated Yes - Not published by Dyness
Min operating temperature -20 °C -10 °C -10 °C for LUNA2000-21-S1
Max operating temperature 55 °C 50 °C +5 °C for LUNA2000-21-S1
Warranty
Warranty - 10 yrs Not published by Huawei
Warranted throughput - - Neither datasheet publishes this
04

More useful comparisons

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Dyness Tower T21 vs Deye GB-L24
10 differences, the largest is usable energy
05

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.