Growatt review

Growatt - Inverter Reviews

4.4

Based on 710 ratings

Finn's Growatt Inverters Review & Verdict

Finn Peacock has been a Chartered Electrical Engineer since 1998, and is ex-CSIRO

While Growatt inverters have been a popular choice for Australia home solar installations for some years, unfortunately I still can't personally recommend them.

The hardware quality is much better than it used to be, but I'm still getting feedback that Growatt's Australian support needs to improve. If I wanted a relatively cheap budget inverter for my house, I'd be looking at Solis or GoodWe.

Growatt Inverters: Pros & Cons

  • Cheap
  • Newer models are reportedly more reliable than older ones.
  • Lacklustre support
  • Tricky commissioning

About Growatt

Shenzen Growatt New Energy Technology Co. Ltd (simply known as Growatt), is a Chinese solar inverter manufacturer that was established in 2011. 

Australian Contact Information

While much of the company's production is located in China, offices can be found in many countries; including Australia. Growatt has a couple of offices here - in Perth and Adelaide:

Service: [email protected]
Sales: [email protected] 
Australian website

Western Australia Office
02 80049182 | 02 80049215
98 Catalano Cct, Canning Vale WA 6155

South Australia Office
0413452944 | 8004 3158
965 South Rd, Melrose Park SA 5039

Company Info

Growatt was founded in 2011 by a group headed by David Ding, who remains the CEO today. It wasn't long after the company was founded that Growatt started shipping inverters to Australia, focusing on the budget end of the market. The firm subsequently abandoned Australia for a few years; returning with new inverter line-up.

Aside from string, battery and central inverters, the company also produces EV chargers, monitoring and energy storage systems. Its Huizhou, China manufacturing facility is huge - covering 200,000 square meters and boasting an annual output of 3,100,000 inverters. Growatt's new manufacturing plant in Haiphong, Vietnam produces solar inverters and batteries, with plans to expand the facility to an annual production capacity of 500,000 inverters.

According to Wood Mackenzie, Growatt was the fifth biggest inverter shipper globally in 2023. 

Quantity Is One Thing. What About Quality?

While Growatt inverters have received a number of industry awards, there are some issues worth noting.

In 2021, there was a recall of 8kW Growatt inverters in Australia, affecting hundreds of units. While in the big scheme of things the impact was small when you consider how many inverters Growatt produces each year, no doubt owners of affected units weren't happy with the situation.

There have also been issues for some time around getting satisfactory support from Growatt. This post about Growatt from SQ's Anthony, a veteran installer, is quite enlightening and a little unsettling. 

Growatt Inverter Models

Growatt offer a wide range of string and battery inverters in Australia, including:

MIN Residential String Inverters

Available in capacities of 2.5kW - 10kW, the MIN range offers a maximum claimed efficiency of 98.1% and two or three MPPTs; depending on the model. These units have an operating temperature range of –25 °C - +60 °C and an ingress protection rating of IP66. In the 7kW to 10kW range, the inverter dimensions are 425 x 387 x 180 mm and the units weigh 18.2 kilograms.

MIN And MOD Storage Inverters

There's quite a selection of battery inverters in the MIN and MOD range. The MIN range offers capacities from 2.5kW - 6kW, and the MOD range from 3kW to 10kW.  These inverters  have claimed efficiencies ranging from 98.2% to 98.6% 

The single-phase MIN models are 375 x 350 x 160mm and weigh 9.1kg - 10.8kg, while the MOD line is 425 x 387x 147mm and weights range from 11.5kg to 13kg.

Note that some Growatt battery inverters are only compatible with certain Growatt batteries.

Warranty Details

Growatt inverters are backed by a standard 5 year warranty from the date of installation, and no more than 5 and half years from the date of delivery from the Growatt factory. 5 years is a pretty common warranty duration among inverters at the budget end of the pricing spectrum. But for Australian owners, there's also the option of extending this by an additional 5 years on selected models; so a total of 10 years.

Conclusion

Like any brand, there are fans and critics. Judging by the reviews below it appears many Australians who have Growatt inverters installed seem pretty happy with them. But given the hit-and-miss nature of Growatt inverter gear and what appear to be ongoing support issues, the company *isn't* currently listed on SolarQuotes' recommended inverter brands chart

If you're an Australian Growatt inverter owner, feel free to leave your own review.

Reviewers report paying:
$2,200 - $12,800

For a

solar system with a
Growatt inverter

Depending on hardware choice and installation difficulty

Growatt has no solar inverters in our database

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Growatt Reviews (710)

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  • 5 star 455
  • 4 star 175
  • 3 star 30
  • 2 star 11
  • 1 star 39

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It seems to serve the purpose and the app is very convenient, I think Growatt has improved their system and now have 10 year warranty.

Panel Brand

Jinko Solar

System Cost

$4,000 to $6,000

System Size

5kW

Installed By

Works for 12 years and hope it will run for another 20 years. For first 10 years Au Gov has subsidized my solar installation with $ 0.47 per each kWh sent to the grid. So, I did not pay any electricity bills for first 10 years. My estimations that I have received around $29,000 worth of subsidies. This fact makes my decision to install the Tesla Powerwall 2. I simply reinvest this money to the Energy storage and continue to enjoy almost free electricity. The Solar panels and Inverter were installed by True Value Solar Pty Ltd (WA)

Panel Brand

I don't know

System Cost

$10,000 to $12,500

System Size

I don't know

Installed By

We have also been using the Growatt brand of PV Inverter and Jinko Solar Panels at our old house for over 10 years, and we can confidently say these brands are highly reliable.

Panel Brand

Jinko Solar

System Cost

$15,000 to $20,000

System Size

10kW

Installed By

Having had Growatt for the past 10 years with no problems I was happy to choose Growatt again for this upgrade.
I am particularly happy that I can use a phone App to check performance of the system, a feature that the older system did not have.
LATER: After the first year of operation, the Growatt inverter is still performing well. Had one minor glitch when data wasn't showing on the App, however, a call to the suppliers maintenance office soon resolved the issue without the need for him to attend. They were very quick getting onto the issue and resolving it.

Panel Brand

LONGi Solar

System Cost

$2,000 to $4,000

System Size

6.6kW

Installed By

Probably has more information on it than is needed for the average person.

Panel Brand

Suntech

System Cost

Under $3000

System Size

1.5kW

Installed By

Panel Brand

No idea (Other)

System Cost

Under $3000

System Size

1.5kW

Installed By

System Cost

$10,000 to $12,500

System Size

6kW

Installed By

System Cost

$2,000 to $4,000

System Size

13kW

Installed By

System Cost

$4,000 to $6,000

System Size

7kW

Installed By

System Cost

$2,000 to $4,000

System Size

6.6kW

Installed By

Failed after almost 6 years, but replaced for free under 10 yr warranty without drama. Too early to tell re new invertor

System Cost

$2,000 to $4,000

System Size

6.6kW

Installed By

System Cost

$2,000 to $4,000

System Size

5kW

Installed By

Opinion based on two previously Captain Green installed inverters that hsave been functioning successfully for several years.

System Cost

$2,000 to $4,000

System Size

6.6kW

Installed By

As explained above and below, this review is not about Solar Panels and/or Inverters - as the panels/inverter that I have are now 10 years old.

The review is therefore purely about my experience in purchasing a Tesla Powerwall 2 Solar Battery from Natural Solar.

System Cost

$12,500 to $15,000

System Size

5kW

Installed By

System Cost

$4,000 to $6,000

System Size

10kW

Installed By

System Cost

$4,000 to $6,000

System Size

6.6kW

Installed By

System Cost

$4,000 to $6,000

System Size

6.6kW

Installed By

System Cost

$2,000 to $4,000

System Size

6.6kW

Installed By

Yes, it is early, and the system has only been running for about 10 days, but so far, I am very impressed with this Growatt 5kw Hybrid inverter and hope it will serve me well.

Panel Brand

JA Solar

System Cost

$10,000 to $12,500

System Size

6.6kW

Installed By

Growatt MIN 5000TL-X (AS4777-2 2020) 5000W
- Connected via Wifi
- All information about electricity generation is stored
- Mobile App is very useful.
- Real-time Monitoring with Mobile App
- Hitorical data can be viewed with Mobile App, hourly, daily, weekly, monthly, etc.

Panel Brand

Tongwei (Other)

System Cost

$0 to $2,000

System Size

6.6kW

Installed By

System Cost

$4,000 to $6,000

System Size

6.6kW

Installed By

Able to monitor generation remotely.

System Cost

$0 to $2,000

System Size

5kW

Installed By

System Cost

$2,000 to $4,000

System Size

6kW

Installed By

System Cost

$15,000 to $20,000

System Size

10kW

Installed By

System Cost

$8,000 to $10,000

System Size

10kW

Installed By

An incentive was offered by Sunterra for this review. Learn more here.

System Cost

$10,000 to $12,500

System Size

6.6kW

Installed By

System Cost

$2,000 to $4,000

System Size

6kW

Installed By

An incentive was offered by Boost Solar for this review. Learn more here.

System Cost

$4,000 to $6,000

System Size

10kW

Installed By

An incentive was offered by Arise Solar for this review. Learn more here.

System Cost

$6,000 to $8,000

System Size

13kW

Installed By

System Cost

$15,000 to $20,000

System Size

13kW

Installed By

Working perfectly, loving that I also have a app that also lets me see how I’m using solar.

System Cost

$10,000 to $12,500

System Size

6.6kW

Installed By

System Cost

$2,000 to $4,000

System Size

6.6kW

Installed By

Terrible company when it comes to warranty issues. I was told by numerous installers dealing with Growatt is a nightmare. Especially when the installer goes bust (euro solar) save yourself a headache and get a better reputable brand

System Cost

$4,000 to $6,000

System Size

6kW

Installed By

Would love to have a larger inverter but we’re capped as to the amount we can feed into the grid.

Panel Brand

Trina

System Cost

$6,000 to $8,000

System Size

13kW

Installed By

Inverter is working fine after 4 years but the app was too hard to instal

System Cost

$2,000 to $4,000

System Size

6.6kW

Installed By

System Cost

$4,000 to $6,000

System Size

6.6kW

Installed By

I got no issues with the products and installation..So far it is working very well.

Panel Brand

LONGi Solar

System Cost

$4,000 to $6,000

System Size

9kW

Installed By

Its all working very well and we are in credit.

Panel Brand

I don't know

System Cost

$4,000 to $6,000

System Size

6.6kW

Installed By

System Cost

$8,000 to $10,000

System Size

4kW

Installed By

System Cost

$6,000 to $8,000

System Size

9kW

Installed By

Not sure if the inverter or panels but I would expect more power then what I am getting and I have been into the roof to clean them .
Would like to know a good brand as would add more panels .

System Cost

$2,000 to $4,000

System Size

6.6kW

Installed By

Just don’t install with Jim’s energy or their franchisee because
After sales service is pathetic

System Cost

$4,000 to $6,000

System Size

6.6kW

Installed By

My 5kW model has worked perfectly for the last 4 years, and the data supplied by the app is excellent.

System Cost

$4,000 to $6,000

System Size

5kW

Installed By

System Cost

$2,000 to $4,000

System Size

3kW

Installed By

System Cost

$0 to $2,000

System Size

6.6kW

Installed By

System Cost

$6,000 to $8,000

System Size

6.6kW

Installed By

System Cost

$2,000 to $4,000

System Size

6kW

Installed By

I am rating the performance of the inverter on the four previous inverters installed as in my review above and not just the one week since the latest system was installed.

Panel Brand

Trina

System Cost

$2,000 to $4,000

System Size

6.6kW

Installed By

Very handy to observe the system performance.

System Cost

$4,000 to $6,000

System Size

6.6kW

Installed By

An incentive was offered by Sunterra for this review. Learn more here.

System Cost

$6,000 to $8,000

System Size

8kW

Installed By

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