Sungrow

Sungrow, a top Chinese inverter producer and one of the world’s largest providers of solar inverters, was established in 1997 by a university professor. With a nett value of $1.5 billion, the Sungrow Power Supply Co. Ltd. is currently the second-largest inverter producer in the world after Huawei. It focuses on R&D, production, and services for power supply systems for wind energy, energy storage, and all types of solar PV power systems. As of June 2019, this dedication had generated more than 1,600 patent applications. Sungrow joined the Australian market in 2012 and claims to have a 15% market share for inverters.

BYD, which stands for “Build Your Dreams,” has various goals, one of which is to become the leading provider of solar battery storage.BYD, which is based in China, has a distinguished history. It was established in 1995, floated on the Hong Kong Stock Exchange in 2002, and began operations as a battery maker before moving into the automotive industry in 2003. Contrarily, Tesla began with electric cars before branching out into solar battery storage.The firm has a lot of experience with EV and battery technologies because it has manufactured many of the millions of electric buses operating throughout China (and many others used internationally). Although many Australians may not be familiar with the business, it is one of the major lithium-ion.

Home energy storage has entered the mainstream because to Tesla Energy’s Powerwall lithium battery solution, which has had a significant influence on the solar industry. When Tesla unveiled the first generation Powerwall six years ago, the energy storage industry was caught off guard. The first high-voltage battery for household usage, this special DC-coupled battery had a significantly smaller 6.4kWh capacity. In contrast, the second generation Powerwall 2, which was introduced in 2016, and which we analyse in this post, has a battery inverter-charger incorporated into it, providing it far greater power and flexibility. The new Powerwall+ (plus), which debuted in May 2021, is the newest model in the Tesla home battery line.

Goodwe has established itself as one of the greatest Chinese inverter producers over the past ten years, and some in the solar business even compare them to certain well-known European producers. In 2012, Goodwe, then Jiangsu Goodwe Power Supply Technology Co Ltd, joined the fiercely competitive Australian solar sector. Early Goodwe inverters were only available in a few types, but the firm today provides a wide selection of inverters for homes, businesses, and utilities, as well as several energy storage solutions, and has sold more than 2 million inverters worldwide. Following this success, Goodwe began offering specialised inverter solutions to a number of well-known businesses, including GE and LG energy.

Sigenergy, established in 2017 by ex-Huawei engineers, gained recognition with its 2023 launch of the Sigenstor all-in-one energy storage system. They offer a range of products including high-capacity LFP batteries (5kWh or 8kWh modules, scalable from 5kW to 30kW output), hybrid inverters (up to 12kW single-phase and 30kW three-phase with excellent solar input capabilities), and smart energy management tools. A key innovation is their optional DC bidirectional EV charger, fully integrating EV charging with home battery systems, positioning them as leaders in V2H technology. The complete Sigenstor system includes an Energy Controller, modular batteries (up to 48kWh per stack, 960kWh in parallel for commercial), an optional bidirectional charger, and a HomeMax gateway for smart energy management and backup. While competing with systems like the new Tesla Powerwall 3 (limited by a single size), and other quality options like Sonnen and Redback, Sigenergy’s modularity and range of sizes stand out.