Growatt Solar Inverters: Independent Review

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This Growatt inverter review is performed independently by Solar Choice and has no affiliation with Growatt.

Overview of Growatt – Company History

Founded in 2011, Shenzhen Growatt New Energy Technology Co Ltd (Growatt) has built a reputation as a cost-effective manufacturer of solar inverters. The company is headquartered in Shenzhen, China and have their main manufacturing facility in Huizhou which is located in the Guangdong province.

After building scale of production of solar inverters, the company has expanded their product range into EV chargers, batteries and energy management accessories.

The company has disclosed plans for an IPO on the Hong Kong stock exchange in previous years. Last year attracted acquisition interest from companies including Blackstone which valued Growatt at close to US$1 billion.

Growatt entered the Australian market soon after their inception and have established a local office to support their customers. Their office is based in Homebush, Sydney.

A Brief Rundown on Solar Inverters

The solar inverter is what turns the solar energy generated by solar panels into the useable electricity that powers households. The energy generated by the solar panels is in the form of direct current (DC) energy. DC electricity only flows in one direction and is the type of electricity used to power phones and laptops. The role of the solar inverter in a photovoltaic (PV) system is to convert the DC energy into the useable AC electricity that powers households.

The inverters are also connected to the grid, this is important as it needs to be able to handle the flow of AC electricity. As any surplus solar generated electricity is fed back into the grid. There are four types of solar inverters, these being string inverters, hybrid inverters, micro inverters, and power optimisers.

What is PV Evolution Labs Top Performer?

PV Evolution Labs (PVEL) with support from DNV GL has been independently testing Solar Panel reliability since 2014, and for the first time in 2019 have tested solar inverters. It is a voluntary test which manufacturers have to pay to be a part of.  The solar panel testing is considered internationally as an excellent indication of solar panel quality. It’s expected that the inverter testing will have the same recognition. To read the full PVEL scorecard click here.

Growatt didn’t rank in any of these tests.

 Growatt Inverter Review – Points of Difference

Growatt Min5000TL-X solar inverter

Growatt are one of the few inverter manufacturers to extend their product range into battery storage. That means for customers looking to install solar and batteries they can install a Growatt solution that integrates both technologies seamlessly and can be monitored through a single app.

All of the CEC approved Growatt Inverter range are Transformerless Inverters, which contributes to the high efficiency.

Growatt Inverter Efficiency

The Growatt flagship residential single phase inverter (MIN 2500-6000TL-X/XH) features a maximum efficiency rating of 98.2% to 98.4% depending on the size of the inverter. This definitely puts them towards the top end of the market in terms of inverter efficiency with the leading European inverters offers 97% to 97.6% on their flagship residential models.

How much do Growatt inverter cost?

The below prices are an indicative guide of the wholesale costs of Growatt Inverters. These prices are only available to solar installation companies, not to end customers.

Model Number Description Indicative Wholesale Cost
GW-1500-S Growatt 1500-S Inverter $310-$320
GW-2000-S Growatt 2000-S Inverter $330-$340
GW-3000-S Growatt 3000-S Inverter $400-$410
GW-MIN5000TL-X Growatt MIN5000TL-X Inverter $560-$570
GW-MIN6000TL-X Growatt MIN6000TL-X Inverter $590-$600

Keep in mind that inverter costs generally only run between 10-20% of your total system, so often it is worth investing in a high quality inverter given this will have a large impact on the efficiency and performance of your Solar Power project.

Compare quotes from up to 7 installers in your area now.

Growatt Inverter Warranty

Growatt have updated their warranty policy for Australian customers in recent years and now offer a 10 year standard warranty. This matches most options on the market which include a 10 year warranty.

Growatt also have a list of scenarios where warranty would be voided, like improper installations and reselling of devices. Most of these exclusions seem reasonable and comparable with other warranty documents Solar Choice has examined.

Growatt have an Australia website, office and phone number (1800 476 928), so it is good to see that Growatt customers will not be stuck trying to contact Chinese headquarters in the event of warranty claim.

Read Growatt’s full warranty document here.

A Review of Growatt Inverters Available in Australia 

Most Growatt inverters have Clean Energy Council (CEC) approval for Australia’s Small-scale Renewable Energy Scheme, the country’s home solar rebate program. However, it’s crucial to note that not all kW sizes of certain inverters receive approval. The CEC-approved Growatt inverters include:

  • Growatt 750-3000-S 1-2kW & 3kW
  • Growatt MIN 2500-6000TL-XH 2.5-6kW
  • Growatt MIN 2500-6000TL-X 2.5-6kW
  • Growatt 3000-6000TL3-S 3-6kW
  • Growatt 7000-11000TL3-S 7-11kW
  • Growatt SPH 3000-6000 3-6kW

Growatt Solar Inverters Pros and Cons

Pros

Cons

  • Growatt offer some of the lowest priced solar inverters on the market which cater well to buyers on a budget

  • The maximum efficiency rating of Growatt’s inverter range compares well against other options in the market with most ratings between 97.2% and 98.4%
  • The main downside of Growatt inverters is that they don’t have the same track record and longevity as other brands on the market. Most Growatt inverters that have been installed are still within their 10 year warranty life, so the reliability of these inverters is less proven than other brands.

  • As no financial information is released it is difficult to form any opinion on the financial health and longevity of the company

Growatt Inverter Specifications

 Growatt 3000-SGrowatt MIN 5000TL-XHGrowatt SPH 3000
Rated AC Power Output3000W5000W3000W
Maximum Continuous Output Current14.3A22.7A16A
Maximum DC Voltage550V550V550V
Maximum Inverter Efficiency97.6%98.4%97.5%
Dimensions271 x 359 x 141 mm375 x 350 x 160 mm547 x 516 x 170 mm
Weight9.1kg10.8kg27kg
Warranty10 Years10 Years10 Years
Operational Temperature Range-25°C to 60°C-25°C to 60°C-25°C to 60°C
Made inChinaChinaChina

Growatt’s Innovative Commercial Solar Project in the Netherlands

2016 marked a significant milestone in the solar energy sector in the Netherlands with the installation of an impressive 1.5MW solar system. This project, spearheaded for the Dutch utility company Liander, notably became the largest solar installation in the country at that time. What made this project particularly groundbreaking was its choice of technology: 70 units of the Growatt 20kUE inverters. These inverters represent the pioneering first generation of three-phase inverters produced by Growatt, a testament to the company’s commitment to innovation in solar energy solutions. The location of this solar plant was strategically chosen to be a parking lot, maximizing space utility and contributing to the region’s renewable energy goals.

Liander Parking Lot Solar Plant

Read more product reviews from Solar Choice

Compare quotes from up to 7 pre-vetted installers in your area now.
Since 2008 our knowledge and sophisticated software has allowed over 300,000 Australian households and businesses to make a well-informed choice on their solar & battery installer.

This Growatt inverter review is performed independently by Solar Choice. Solar Choice has no affiliation with any Solar Panel, Battery or Inverter brands.

Jeff Sykes

Reviews from Australians who have installed Growatt Inverters

Rated 4.45 from 121 reviews
13th February 2024
Linda
-
30-50kW system
3.00

9th February 2024
Amit
-
7kW system
3.00

30th January 2024
NSW - 2360
6kW system
5.00

30th January 2024
Calvin
-
6kW system
5.00

25th January 2024
QLD - 4165
6kW system
3.00

Okay

22nd January 2024
Kimberley
-
5kW system
5.00

19th January 2024
Mohammad
-
6kW system
5.00

6th January 2024
Paul
VIC - 3222
6kW system
5.00

Once again the installation is fine our only concern is that the reduced feed in tariff and increasing electricity costs are making the decision to install solar less rewarding and is less attractive from a financial viewpoint.

1st January 2024
Roger
NSW - 2570
10-15kW system
5.00

26th December 2023
Leigh
WA - 6210
7kW system
5.00

Wifi is awesome with ct,s added to monitor total power. I get a total picture off power exported/imported/cost.

25th December 2023
Saheed
-
6kW system
5.00

21st December 2023
Gerard
NSW - 2099
6kW system
5.00

have not had a problem

20th December 2023
Nagare
VIC - 3064
6kW system
4.00

Too early to comment on performance.

18th December 2023
Tom
WA - 6254
6kW system
5.00

Working well although the setup to read data on a mobile has never worked despite being set up by the installer. Not really a major concern.

10th December 2023
Trevor
NSW - 2153
10kW system
5.00

The inverter appears to be working ok up to its rated output. I was able to contact the manufacturer who quickly helped to get my app working.

6th December 2023
Shikhar
-
10-15kW system
4.00

14th November 2023
Graeme
NSW - 2747
6kW system
4.00

Seems OK. Has got quiet hot on occasion. Large heat sink, covered with awning. App won't work.

7th November 2023
Amandeep
-
6kW system
4.00

Good brand

3rd November 2023
Todd
-
10-15kW system
5.00

1st November 2023
Rohit
-
6kW system
5.00

27th October 2023
Andy
NSW - 2113
10-15kW system
5.00

Too early to say but there are plenty of happy owners and installers for them.

21st October 2023
Corinne
-
10kW system
2.00

20th October 2023
Gerhard
QLD - 4226
6kW system
5.00

Appear to do the job well

18th October 2023
Kevin
NSW - 2287
10-15kW system
5.00

12th October 2023
Raelene
-
8kW system
5.00

10th October 2023
Martin
-
6kW system
5.00

6th October 2023
Maqbool
VIC - 3753
5kW system
5.00

3rd October 2023
Daneil
-
5kW system
5.00

3rd October 2023
Arthur
-
9kW system
4.00

30th September 2023
Mahender
-
6kW system
5.00

29th September 2023
Sandeep
-
6kW system
5.00

27th September 2023
Emily
-
1.5kW system
4.00

23rd September 2023
Karen
-
6kW system
5.00

20th September 2023
Ian
NSW - 2795
6kW system
5.00

To date working as required

14th September 2023
Shail
-
6kW system
5.00

8th September 2023
Sanket
-
6kW system
5.00

31st August 2023
Lakshya
-
15-20kW system
5.00

31st August 2023
Mark
-
8kW system
5.00

I've rated it high, but system has only just been commissioned so its hard to say.

30th August 2023
Bronwyn
VIC - 3305
6kW system
5.00

25th August 2023
Ganesh
-
6kW system
5.00

25th August 2023
Jacqui
-
10kW system
3.00

I know nothing about it yet as we have not been able to use our solar since installarion

23rd August 2023
Darren
-
15-20kW system
5.00

Great

17th August 2023
Ankush
-
6kW system
5.00

Perfect

16th August 2023
Richard
-
6kW system
5.00

Seems to be working well. not an easy thing to get the app to work on my phone but will keep trying.

15th August 2023
Nazia
-
6kW system
4.00

14th August 2023
Jack
-
8kW system
5.00

11th August 2023
Aditya
-
10-15kW system
5.00

5th August 2023
Brian
-
6kW system
5.00

Didn't like the app but it's not difficult to use

5th August 2023
Amy
-
6kW system
5.00

Works really well and is easy to use

2nd August 2023
Jonathan
WA - 6211
5kW system
5.00

The inverter has worked perfectly since install. Great support when required, even though Growatt was not at fault. Recently the voltage in our area was too high due to grid issues, causing the solar system to shut down as the voltage exceeded the normal limits. I contacted "Now Solar" and they arranged for the Growatt team to quickly make adjustments to our Inverter (remotely) so it could handle the unusually high voltage in our area. Really quick and effective support.

1st August 2023
Jackson
-
1.5kW system
5.00

30th July 2023
Phu
-
6kW system
3.00

Inverter is ok. No issue so far. Wifi app (Shinephone) is a bit hard to setup if customers don't have basic network knowledge

29th July 2023
Chintamani
-
6kW system
5.00

good

27th July 2023
Adam
-
5kW system
5.00

22nd July 2023
Milo
-
5kW system
5.00

10th July 2023
Jean
VIC - 3995
6kW system
4.00

10th July 2023
Stephen
VIC - 3888
6kW system
5.00

Ok

6th July 2023
Jill
-
6kW system
3.00

Too early to tell.

4th July 2023
Sherif
-
6kW system
4.00

1st July 2023
Hameed
-
6kW system
5.00

30th June 2023
Aadi
-
6kW system
4.00

29th June 2023
Michael
-
6kW system
4.00

29th June 2023
Hameed
-
6kW system
5.00

29th June 2023
Rama
-
6kW system
4.00

Very happy

28th June 2023
Jawad
-
10-15kW system
5.00

27th June 2023
Kevin
-
3kW system
5.00

have been happy so far

22nd June 2023
Mike
VIC - 3758
6kW system
1.00

none, it looks as if it works.

15th June 2023
Jolin
-
6kW system
4.00

15th June 2023
Sameer
-
6kW system
5.00

11th June 2023
Michael
-
5kW system
4.00

10th June 2023
Syed
-
6kW system
5.00

8th June 2023
Randy
-
6kW system
5.00

Great

8th June 2023
Khanh
-
6kW system
5.00

8th June 2023
Andrew
-
10kW system
3.00

Cannot connect app or real time data.

1st June 2023
Allan
NSW - 2760
5kW system
3.00

Not been installed for long but the problem I have with Growatt is they do not like talking to end users. They prefer to talk to installers only. I presented them with my problem and I got three different answers and two of those were from the same technical support engineer.

31st May 2023
David
-
6kW system
5.00

31st May 2023
Calum
-
5kW system
5.00

31st May 2023
Luqman
-
6kW system
4.00

29th May 2023
Jorge
-
3kW system
4.00

16th May 2023
Parneet
-
6kW system
3.00

16th May 2023
Kristy
-
6kW system
5.00

Neat and tidy installation

16th May 2023
Brian
WA - 6108
3kW system
4.00

I was told that these inverters have 10 year replacement warranty so should be of a good quality

16th May 2023
Cliff
-
10-15kW system
5.00

Newly installed system so we are still assessing but we did a lot of research prior to purchase and this system was best rated

15th May 2023
Henry
-
5kW system
5.00

12th May 2023
Brett
-
30-50kW system
5.00

Outstanding customer service

12th May 2023
Dee
-
6kW system
5.00

Good and easy to operate

28th April 2023
Jimmy
-
7kW system
5.00

30th March 2023
Lysander
VIC - 3461
2kW system
5.00

19th March 2023
Marie-therese
WA - 6060
30-50kW system
4.00

13th February 2023
Samuel
-
6kW system
5.00

11th February 2023
Pin
-
6kW system
5.00

# 1 Growatt - most selling, good app in phones

3rd February 2023
Denica
QLD - 4300
6kW system
4.00

Works great does what it suppose to do.

29th December 2022
Stewart
WA - 6536
7kW system
5.00

Great

22nd December 2022
Ian
QLD - 4670
10-15kW system
5.00

Appears to be working fine

27th November 2022
Edwin
-
6kW system
5.00

14th November 2022
Michael
-
6kW system
1.00

9th November 2022
David
ACT - 2581
10-15kW system
1.00

Didn't get that far

13th October 2022
Karen
-
6kW system
5.00

Compact unit and the monitoring app works well.

27th September 2022
Clive
-
6kW system
1.00

25th September 2022
Michael
-
10kW system
1.00

No sure not connected to the grid

20th September 2022
Alistair
VIC - 3363
10kW system
5.00

Very happy with reviews

1st August 2022
Tas
VIC - 3161
6kW system
5.00

30th July 2022
Jim
WA - 6172
6kW system
5.00

Appears to work well.

26th July 2022
Peter
QLD - 4370
6kW system
5.00

25th July 2022
Ken
-
6kW system
5.00

7th June 2022
Christian
QLD - 4305
6kW system
1.00

Monitoring app doesn’t work, tech support non existent. Cheap system.

26th May 2022
Tan
-
6kW system
5.00

Simple to use

6th May 2022
Raghav
-
6kW system
5.00

5th May 2022
Carrafa
-
10kW system
5.00

25th March 2022
Mark
VIC - 3207
6kW system
4.00

NA

1st March 2022
Alexander
WA - 6163
5kW system
5.00

The inverter works fine. To get added import export power and energy cost tracking I opted for a 3rd party monitoring system from Reduction Revolution

10th February 2022
Naveen
NSW - 2155
6kW system
5.00

2nd February 2022
Ian
VIC - 3160
6kW system
5.00

So far so good.

9th August 2021
Ron
WA - 6169
6kW system
5.00

Again looks like a world wide product

7th August 2021
Vicky
-
10kW system
5.00

Put my trust in Get greener owner as I new he was genuine and cared about his clietal

2nd August 2021
Brian
-
3kW system
5.00

Seems to be a very well know brand

23rd June 2021
Marie-therese
WA - 6060
3kW system
5.00

21st June 2021
Duncan
VIC - 3127
6kW system
4.00

Seems fine. I note you only get ~85% capacity which I didn't realise before installation.

11th June 2021
Stephen
NSW - 2540
6kW system
5.00

No problems.

7th June 2021
Ryan
VIC - 3214
6kW system
4.00

Difficult to assess savings at this point due to slow install of interconnect by powerCore

28th May 2021
Andrei
NSW - 2264
8kW system
5.00