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Top 10 World's Most Efficient String Inverters (< 5 kW)

 

The table below shows the Top 10 of the current commercially available string inverters for systems below 5 kilowatts with the highest maximum inverter efficiency.
This information has been collated from public sources such as online product datasheets.

 

 


  Manufacturer Inverter Efficiency Inverter Model
1. Steca 98.60% StecaGrid 3600
2. Sunways 97.80% NT5000
3. Fronius 97.70% IG TL 5.0
4. Diehl AKO 97.70% 4800 TL
5. Voltwerk 97.70% VS 5
6. Solaredge 97.60% SE4000
7. Mastervolt 97.50% SunMaster ES4.6
8. Mitsubishi Electrics 97.50% PV-S4200
9. Solutronic 97.40% Solplus 50
10. Refu 97.40% Refusol 500K

 


 

 

*This table was first published on January 2, 2012.

Please scroll down or click here for the Top 25 String Inverter Efficiency list. Companies that feel they should be included in these lists are invited to contact us and provide the public information source.

 

 


 

1. Steca Steca

 

Inverter Efficiency: 98.60%
Inverter Model: StecaGrid 3600
Rated Power Output: 3600 W

 

Data Sheet

 

 


 

2. Sunways Sunways

 

Inverter Efficiency: 97.80%
Inverter Model: NT5000
Rated Power Output: 5000 W

 

Data Sheet

 

 


3. Fronius Fronius

 

Inverter Efficiency: 97.70%

Inverter Model: IG TL 5.0

Rated Power Output: 5000 W

 

Data Sheet

 


 

4. Diehl AKO Diehl AKO

 

Inverter Efficiency: 97.70%
Inverter Model: 4800 TL
Rated Power Output: 4600 W

 

Data Sheet

 


5. Voltwerk Voltwerk

 

Inverter Efficiency: 97.70%

Inverter Model: Voltwerk VS 5

Rated Power Output: 5000 W

 

Data Sheet

 


6. SolarEdge    SolarEdge

 

InverterEfficiency: 97.60%

Inverter Model: SE4000

Rated Power Output:4200 W

 

Data Sheet

 

 


7. Mastervolt Mastervolt

 

Inverter Efficiency: 97.50%

Inverter Model: SunMaster ES4.6

Rated Power Output: 4830 W

 

Data Sheet

 

 


8. Mitsubishi Electrics Mitsubishi

 

Inverter Efficiency: 97.50%

Inverter Model: PV-S4200

Rated Power Output: 4200 W

 

Data Sheet

 

 


9. Solutronic Solutronic

 

Inverter Efficiency: 97.40%

Inverter Model: Solplus 50

Rated Power Output: 5000 W

 

Data Sheet

 

 


10. Refu refu

 

Inverter Efficiency: 97.40%

Inverter Model: REFUsol005K

Rated Power Output: 4600 W

 

Data Sheet

 

 

 

 


 

 

 

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