Sunna Tech review

Sunna Tech - Inverter Reviews

3.8

Based on 16 ratings
Michael Bloch

Michael's Sunna Tech Inverters Review & Verdict

Michael Bloch covers the latest developments in home electrification for SolarQuotes.

In the early-mid 2010's, quite a few Sunna Tech inverters were installed in Australia — but quality was inconsistent. Sunna Tech inverters not only subsequently disappeared from the Australian market, but altogether.

Sunna Tech Inverters: Pros & Cons

  • Company ceased operations many years ago.

About Sunna Tech

Sunna inverters were supplied to Australia, Asia, Europe, USA, Canada and Africa. Their manufacturing provenance isn't clear, but likely China. 

Company Info

The company once had an office in Australia in West Burleigh, Queensland, but much about the firm is a mystery shrouded by the fog of time. We found reference to a Sunna Tech Ltd in the UK that was incorporated in 2011 and dissolved in mid-2015. 

Sunna Tech Inverters In Australia

Several Sunna Tech solar inverters were once approved for use in Australia by the Clean Energy Council. The models included:

  • 1500TL (1.5 kW)
  • 2000TL (2 kW)
  • 3000TL (3 kW)
  • 4200TL (4 kW)
  • 5000TL (5 kW)

Sunna Tech inverters were transformerless single-phase units that featured an LCD display showing the operation information and status of the inverter. They had a maximum efficiency of 96%, an operating temperature range of -20 °C ~ +50 °C and were IP65 rated, which meant they could be installed outdoors.

The smaller capacity units measured 455 x 430 x 170 mm and weighed 23 kilograms, while the 4200TL and 5000TL's dimensions were 455 x 510 x 170 mm and it weighed 28 kilograms - so they were quite hefty devices.

Warranty Details

Sunna Tech inverters were accompanied by a 10-year warranty. Given how much time has elapsed since the company was liquidated, that means any that are still installed in Australia would no longer have warranty coverage. Instead of a costly attempt to repair one, you're better off selecting a new solar inverter brand.

Sunna Tech has no solar inverters in our database

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Sunna Tech Reviews (16)

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Sunna 400 TL, Installed Dec 2011 - died Aug 2016. Same with 4 other friends given we all bought at the same time. Ran well for 5 years and then needed about $1000 (or dearer if European brand) full replacement .......... but Sunna was not recommended by my new installer. Very costly losing a couple of BILLS in power-credit until detected and then another $1200 or so for replacement........... that's 1 years LOSS of ROI !!!! Not Happy.

System Cost

$6,000 to $10,000

System Size

4kW

Installed By

System Cost

$10,000 to $15,000

System Size

3kW

Installed By

Panel Brand

Australian Solar Manufacturing

System Cost

$3,000 to $6,000

System Size

1.5kW

Installed By

Panel Brand

German Solar

System Cost

$10,000 to $15,000

System Size

3kW

Installed By

Panel Brand

German Solar

System Cost

$3,000 to $6,000

System Size

2kW

Installed By

stopped working after about 2 months and had to have it replaced. have a different inverter now but don't know the brand. Also since I have had this replaced any tariffs I have gained mean that it would take me 8 years to come out even.

Panel Brand

don't know (Other)

System Cost

$3,000 to $6,000

System Size

1.5kW

Installed By

So far we have had no issues with our inverter.

Panel Brand

Canadian Solar Inc

System Cost

$6,000 to $10,000

System Size

3kW

Installed By

Panel Brand

SunEarth

System Cost

Under $3000

System Size

1.5kW

Installed By

Consistently produces power even with cloud or later in the evening. Max production so far noticed 1.99kw so not broken the 2.00kw barrier yet. Overall very happy.

Panel Brand

Lightway

System Cost

$6,000 to $10,000

System Size

2kW

Installed By

Panel Brand

Lightway

System Cost

$15,000 to $20,000

System Size

5kW

Installed By

Panel Brand

PV Power Technologies Pvt (Other)

System Cost

$6,000 to $10,000

System Size

3kW

Installed By

Original inverter installed was a 4kw model. IT BROKE DOWN! Took a fortnight to get a replacement which was a 1.5kw model. This has worked well ever since.

Panel Brand

No idea what brand the panels are (Other)

System Cost

$3,000 to $6,000

System Size

1.5kW

Installed By

So far it has been performing o.k. I am unable to say whether it is very good or not as I have to compare it with another Inverter...

Panel Brand

Solagex Standard (Other)

System Cost

$6,000 to $10,000

System Size

2kW

Installed By

Panel Brand

Lightway

System Cost

$10,000 to $15,000

System Size

2kW

Installed By

Panel Brand

Canadian Solar Inc

System Cost

$15,000 to $20,000

System Size

5kW

Installed By

Panel Brand

Zhejiang Shengfa New Energy Technology

System Cost

$3,000 to $6,000

System Size

2kW

Installed By

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