About Sunways
German design & efficiency since 1993, the Sunways range of inverters only use best in the class components and a unique design which provides optimal performance and reliability. Backed by an industry leading 12 Year Warranty at a price point that will impress you, Sunways inverters are the number one choice for those looking for quality and affordable solar inverters for their residential or commercial solar system.
Sunways were acquired by Suntech’s parent company (SFCE Group) in 2014 and the Sunways inverter product range is exclusively supplied into the Australian market through their sister company Suntech. Suntech recently celebrated their 20th anniversary as one of the most recognised brands of solar panels globally and have had a presence in Australia for 14 years. With Suntech backing the brand and taking care of all technical and warranty aspects of the Sunways product, customers can have peace of mind knowing that they are covered if any issues arise.
Sunways Inverters
A wide range of power classes are available now and more models are soon to be launched into the Australian market:
- Single Phase: 5/6/8/10KW
- Three Phase: 4/5/6/8/10/12/15/17/20/25
- Three Phase 30/33/36/40/45/50KW
- Three Phase: 60/80/100/110/125KW
- Hybrid Single Phase: 3/3.6/4.2/4.6/5/6/7/8KW
- Hybrid Three Phase: 4/5/6/8/10/12KW
- There is also a full range of Sunways accessories for consumption monitoring including a very useful installer portal to manage all installed systems
There are constant upgrades being made to keep Sunways inverters ahead of the competition. The next production cycle of inverters will have a number of additional benefits – these will be launched in January 2022:
- Higher input current to cope with higher output solar modules (12.5A – 15A maximum input current);
- Start up voltage reduced from 120V – 80V (increased operation hours and increased system output);
- DC input capacity of inverter has increased from 1.5 x rated power – 1.6 x rated power.
Sunways Inverters USPs
- High quality product with German Heritage, established in 1993
- Intelligent design resulting in 10c lower operating temps to other inverters = longer lifespan & better performance
- Best in Class Components for Optimum Performance & Reliability
- Industry leading 12yr warranty (Parts & Labour)
- Backed by Suntech who have been established in Australia for 14 years
- Local technical support & warranty management through Suntech – fast & easy
- Attractive price point
- Ability to Continuously Boost AC Output by 10% – more power from your system
- Built in Export Limitation Control (no smart meter required)
- Built in Surge Protection for AC & DC
- In Built DC Isolator
- Sunways Partner program which offers resellers a number of exclusive features and benefits to give them a point of difference
- Recommended by Solar Quotes as a reputable and trusted solar inverter in the Australian market
- Extendable warranties up to 20 years
Our Products
STH-3K | 3.6K | 4.6K | 5K | 6K | 7K | 8KTL-HS
STS-3K | 3.6K | 4.2K | 4.6K | 5K | 6KTL
TT-4K | 5K | 6K | 8K | 10K | 12K | 15K | 17K | 20K | 25KTL
3-6kW Inverter Images
As seen on Season 5 of Open Homes Australia
Related Articles
One App to Rule Them All: The End of the Solar Dashboard Era
Stop managing your solar and start orchestrating it. In 2026, the “Energy Orchestrator” replaces cluttered apps with a single, autonomous brain that maximises your savings while you sleep.

Vehicle-to-Home (V2H) Explained – Can Your EV Power Your House?
Learn how V2H lets your EV power your home in Australia. Discover V2H charger options in Australia, compatible EVs, costs, and how to get started with Energy Matters.
FranklinWH Launches Enhanced 15 kWh aPower Battery in Australia and New Zealand
FranklinWH launches a 15 kWh aPower battery in Australia, delivering more capacity, higher lifetime output, and stronger long-term value for homeowners.

Your Solar Setup Might Not Be Built For The Grid That’s Coming
Network tariff reforms are changing how electricity is priced. Here’s why your solar setup may no longer align with how savings are calculated—and what that means for your energy bill.

Post-Installation Update of GoodWe ESA: Life With a Home Battery
Living with a home battery changes everything. From blackout protection to energy freedom, here’s what life with the GoodWe ESA is really like.

The 2026 Guide To Re-Powering Your Home
Stop letting your “heritage” solar drain your wallet. Re-powering with 2026 bifacial tech doubles your output in the same footprint, securing thirty years of energy independence and savings.






