PRE RELEASE. Unlike many opinionated reviews, the Solar Review Inverter Assessment Criteria compares the Growatt TL3-S against the industries best known specifications.  The result, an inverter review with no room for discretionary bias and the transparency you desire.  

.Make and model:  Growatt TL3-S.

Variants:  3.0 | 4.0 | 5.0 | 6.0 kW.

  Battery compatibility, cooling.

  Internet connectivity, Installer remote access.

GREATER THAN 3.3 IS A VERY GOOD SCORE. The following content for the Growatt TL3-S should be used as a guide only. Individual circumstances and compatibilities should always be taken into account when selecting the right inverter for any given installation. The below Growatt TL3-S content has been built using the Solar Review Inverter Assessment Criteria 2.0 and above based on available product specifications at the time of writing. 


Design is what defines a particular solar inverters ability to meet end-user expectation from modern appeal, future integrations and versatile installation locations.

Growatt TL3-S data sheet >

Growatt TL-3 Three-phase Inverter Image


TL3-S - Design
  • AC & DC Coupled battery compatibility with selected battery
  • No change for the last 5-years.
  • Fanless.
  • No awards listed.
  • CE certified.
  • Uninspiring.
  • IP 65.


As the heart of your new self sufficient power supply, the features of an inverter define the opportunity for diverse interaction, variable installation design methods and defined asset management opportunities.

Growatt TL-3 Three-phase Inverter Image


TL3-S - Features.
  • 2+ MPPTS.
  • LCD graphic interface.
  • Ethernet only.
  • No manufacturer supplied module-level optimisation options.
  • Manufacturer supplied module-level rapid shutdown options.
  • No manufacturer supplied expanded monitoring options.
  • MPPTs only shadow management.
  • Installer remote access support is rated at - General data configuration.


Performance in more ways than just efficiency alone. How does a solar inverter perform within its intended environment and in adverse conditions? The key specifications not often at first thought.

Growatt TL-3 Three-phase Inverter Image


TL3-S - Performance
  • 97.1% European efficiency.
  • Temperature range of -25°C (13°F).
  • Temperature range of +60°C (140°F).
  • Temperature derating 45°C (113°F).
  • Weighs 21.2kg (46.7lbs).
  • Noise emission of 25 dB (A).


Manufacturer guarantees are interesting when selecting an inverter technology. More commonly is a complimentary extension to base guarantee options in recent years. As guarantee obligations can often be shielded by installer incompetence, should a manufacturer define an adequately trained installer network with a complimentary warranty extension (added end-user benefit), such guarantee has been considered as a base warranty more likely of adhering manufacturer installation specifications.

Important: A manufacturers obligations under guarantee will be obsolete if the inverter is not installed to manufacturer specifications. Use an authorised installer.

Growatt TL-3 Three-phase Inverter Image


TL3-S - Guarantee
  • 5-year parts warranty.
  • 5-year service warranty.
  • No authorised installer network.


In a modern world, software is how you interact with your self generated power supply. More than just a monitoring portal, inverter software is evolving to become the entire energy management protocol as the new standard.

Growatt TL-3 Three-phase Inverter Image


TL3-S - Software
  • Growatt Monitoring Software.
  • iOS & Android app.
  • Alerts & fault diagnosis.


All well and good having the greatest technology, but what if that technology is simply out of reach for most? Adversely, the cheapest product may lack essential technology requirements expected by many end-users. Put price into perspective. Affordability is where price and technology come together to help determine value.

Growatt TL-3 Three-phase Inverter Image


TL3-S - Affordability
  • Good technology score.
  • 5kW approx for $1200 USD ex.


The below overall assessment for the Growatt TL-X is broken up into two final scores.

  • Overall technology ranking; the average of design, features, performance, guarantee and software (for those less concerned about price).
  • Overall ranking; the average of design, features, performance, guarantee, software and affordability. 


TL-X - Overall
  • Design 3.3
  • Features 3.2
  • Performance 4.1
  • Guarantee 2.3
  • Software 2.0
  • Technology 3.0
  • Affordability 4.0


How was the score for the Growatt TL-X calculated? By utilising the Solar Review Inverter Assessment Criteria V2.3 >


Please enter your comment!
Please enter your name here