SunWiz is Australia’s primary source of market analytics for the Solar & Storage industry. We’ve been collating market information since 2009 and most of the leading solar businesses subscribe to our analytics.
We collect information from many data partners that together encompass a large portion of the total installations that occur each month. No other market analyst has collated such a dataset. From this we are able to make a confident assessment of which are the top volume brands. We don’t have complete coverage and we’re willing to be proven wrong (in which case we’ll note it here and amend our ranks).
The Australian Solar & Storage industry is world-leading, experienced, and competitive. Getting to the top of the leaderboard is therefore worth celebrating. It demonstrates a brand has got what it takes to be popular. And if a brand can remain on the leaderboard for multiple years, then that brand can rightfully claim to be the Best Solar Panel in Australia, Best Solar Inverter in Australia, or Best Energy Storage System (Battery) in Australia.
SunWiz has been tracking every solar power system installed in Australia since 2009, including information on which solar equipment was used. We are the undisputed authority on solar market volumes, and our data is widely quoted by companies, NGOs, and government agencies. We’ve also been the undisputed authority on the Australian battery market since 2015.
In 2025, SunWiz performed an in-depth verification and validation of battery manufacturers 2024 installation volumes, which we also cross-referenced against our own independent data sources. On this basis, we are also pleased to announce:Â
- AlphaESS is the 2nd-largest Volume Battery Manufacturer in Australia for 2025.
Sungrow is the #2 Battery Manufacturer in Australia.
About AlphaESS
AlphaESS is a leading global green energy storage solution and service provider. The company excels in providing tailored solutions for a wide range of applications, including residential, commercial, industrial, large-scale, and utility projects. AlphaESS has 40+ subsidiaries providing local services and 200,000+ systems actively running in 130+ countries, enabling millions of people to enjoy reliable, accessible and clean energy.
Founded in 2012 and headquartered in Nantong, China, AlphaESS is a leading global provider of advanced energy storage solutions. Specializing in residential, commercial, and industrial applications, the company is dedicated to making clean, reliable energy accessible worldwide. With over 30 subsidiaries and service centers across continents—including Australia, Germany, the UK, the US, Italy, and Singapore—AlphaESS has deployed more than 200,000 systems in over 130 countries, empowering millions to achieve energy independence and sustainability. ​
AlphaESS offers a comprehensive range of products, including residential systems like the SMILE series, commercial and industrial solutions, portable power stations, and electric vehicle chargers. Their energy storage systems are designed to optimize solar energy usage, provide backup power, and enable participation in virtual power plants (VPPs). The company’s proprietary AlphaCloud platform ensures real-time monitoring and intelligent energy management, enhancing system performance and user experience.
Committed to innovation and quality, AlphaESS has received multiple accolades, including being named a “Top Brand PV Storage” in Australia, South Africa, and Belgium by EuPD Research. Their products adhere to stringent international standards, with certifications such as UL1741, UL1973, and UL9540, and are backed by a 10-year warranty supported by Munich Re. Through continuous research and development, AlphaESS strives to deliver cutting-edge energy solutions that contribute to a sustainable future. ​