TW Solar panel specializes in high-efficiency solar panels for the Australian market. Their products promise sustainability and cost savings for homeowners and businesses.
TW Solar, also known as Tongwei Solar and part of the Tongwei Group, is one of the world’s largest solar manufacturers. The group started in 1983 producing animal feed and entered the solar industry around 2009, scaling up production by 2013. Initially focused on making solar cells for other companies, TW Solar now manufactures its own panels as a fully integrated company. In Australia, TW Solar opened a local office in 2025, though its panels had been sold and installed in the country for several years before that, giving it a solid local track record. The company is known for producing high-efficiency, reliable, and competitively priced solar panels.
TW Solar is a renowned name in the renewable energy sector. It stands tall in the market of solar panels. Customers across Australia trust TW Solar for their energy needs. This brand offers clean and efficient solar power solutions.
Tongwei Solar, commonly known as TW Solar, is part of the Tongwei Group founded by Liu Hanyuan in 1982. While the group had diverse business interests, it officially entered the solar sector in 2006. This gives TW Solar nearly two decades of experience in manufacturing solar panels.
The company operates six major production facilities across China in Hefei, Shuangliu, Meishan, Jintang, Yancheng, Nantong, and Tonghe. With an annual output of around 70GW in solar cells and 14GW in solar panels, TW Solar is regarded as one of the largest solar manufacturers worldwide.
At present, TW Solar does not have a local office in Australia. Instead, Australian customers are supported through local distributors, such as One Stop Warehouse, who handle product distribution and warranty claims.
The prices below are provided as a general guide and represent below-average costs, reflecting TW Solar’s competitive pricing in the market
| System Size | Prices Starting (Approx.) |
|---|---|
| 6.6 kW system | $3,999 |
| 8 kW system | $4,599 |
| 10 kW system | $5,599 |
| 13 kW system | $7,599 |
| 20 kW system | $10,299 |
With so many solar panel brands in the market, what sets TW Solar apart?
TW Solar ranks among the top ten solar manufacturers worldwide in terms of production volume. Their solar cell output currently sits at around 70GW, with projections to increase to 130–150GW between 2024 and 2026. In terms of panels, the company previously reported an annual capacity of 14GW, with expectations—based on self-reported figures—to expand to as much as 80GW by the end of 2023.
Unlike many competitors, TW Solar manages every key stage of production—from making solar cells to assembling finished panels. This vertical integration helps ensure consistent quality, lower costs, and better control over supply.
TW Solar currently has 131 solar panel models approved by the Clean Energy Council (CEC) in Australia under the name “Tongwei Solar (HEFEI) CO LTD.” CEC approval is essential for eligibility under the federal STC rebate program, making these panels a reliable choice for Australian households and businesses.
At present, two main panel technologies from TW Solar are widely available in Australia:
TW Solar’s half-cut modules are monocrystalline solar panels, offered in both P-type and N-type options. This range is divided into three sub-series:
These panels are versatile, suitable for both residential rooftops and larger commercial projects, with power outputs ranging from 390W up to 670W. A key advantage of the N-type modules is their superior performance and reliability. Thanks to advanced cell technology, they have a lower temperature coefficient and degrade more slowly compared to P-type modules—about 1% for N-type vs. 2% for P-type in the first year.
Additionally, TW Solar offers an ‘All Black’ design, where both the cells and the aluminium frame are black. This option provides homeowners with a sleek, modern look that blends more seamlessly into rooftops.
TW Solar also manufactures shingled modules, where solar cells are overlapped in a pattern similar to roof shingles. This layout reduces inactive space on the panel’s surface, resulting in higher overall efficiency.
The shingled range includes three sub-series:
Within the Terra 5K and 5E series, customers can choose from a variety of styles, including standard monofacial modules (SC), black frame modules (SCS), and full-black modules (SCF). The Terra N series, on the other hand, is dedicated to premium full-black modules, offering a highly aesthetic and efficient solar solution.
In short, TW Solar provides both half-cut and shingled solar panel technologies, catering to different needs—from maximum performance and efficiency to stylish, roof-friendly designs.
Every solar panel comes with two key warranties: a product warranty and a performance warranty. The product warranty protects buyers against manufacturing faults or defects, while the performance warranty guarantees how much output the panel will deliver as it ages. Of the two, the product warranty is generally considered the most important factor when comparing panels.
For Australian customers, TW Solar provides a 12-year, 15-year, or 25-year product warranty, depending on the series. The following models are backed by the longer 25-year product warranty:
On performance, TW Solar panels are comparable with most leading brands. Their single-glass modules are guaranteed to deliver at least 98% of their rated output in the first year, followed by an annual degradation rate of no more than 0.55% per year for the next 24 years.
| Specification | Details (TW-TWMND-54HS440/30) |
|---|---|
| Cell Number | 108 cells (6 × 18) |
| Cell Type | TCN (N-Type Monocrystalline) |
| Power Output | 440 Wp |
| Max Power Voltage | 33.6 V |
| Panel Efficiency | 22.5% |
| Annual Power Degradation (Year 2–30) | 0.40% |
| Dimensions | 1722 × 1134 × 30 mm |
| Weight | 20.5 kg |
| Product Warranty | 25 Years |
| Operational Temperature Range | -40°C to 85°C |
Customers praise TW Solar Panels for their reliability and long-term savings. Positive reviews often mention easy installation and the excellent support from TW Solar’s customer service team. Below, find key points from multiple user testimonials:
Comparing solar panels can be tricky. Let’s see how TW Solar stacks up:
| Brand | Efficiency | Warranty | Cost |
| TW Solar | 22.5% | 25 years | Mid-Range |
| Brand X | 18% | 20 years | Low |
| Brand Y | 22% | 30 years | High |
TW Solar’s balance of efficiency, warranty, and cost offer great value.
TW Solar panels deliver solid performance and reliability, especially with their advanced N-type and shingled modules that achieve excellent efficiency rates. They’re a strong contender in the affordable panel segment, backed by years of manufacturing experience. That said, it would be reassuring to see TW Solar set up a local Australian office in the future. Having an in-country support team would make warranty claims and technical assistance much easier for Aussie customers — something many other established brands already provide.
1. Who manufactures TW Solar panels?
TW Solar panels are manufactured by Tongwei Solar, a division of Tongwei Co., Ltd.—a leading Chinese company specialising in solar cells and renewable energy technology.
2. Are TW Solar panels Tier 1 rated?
Yes, Tongwei Solar is considered a Tier 1 manufacturer, meaning their panels meet high standards for quality, bankability, and large-scale deployment.
3. What is the warranty period for TW Solar panels?
Most TW Solar panels come with a 12-year product warranty and a 25-year performance warranty, depending on the model and distributor.
4. Are TW Solar panels suitable for Australian conditions?
Yes. TW Solar panels are designed to perform well in hot and sunny climates, making them suitable for most Australian regions. However, having a local office would further improve after-sales support.
5. How efficient are TW Solar panels?
TW Solar panels offer module efficiencies between 21%–23%, depending on the model—comparable to other premium brands in the market.
Similar Aussie Solar Tech offers solar panels of the highest quality that have anti-reflective, self-cleaning transparent material, reliable cells, and UV-resistant EVA film for getting the most out of your solar power. As a NETCC-approved solar retailer, we make sure that the solutions we offer for your house are of the highest quality and will last. Choose us for solar energy that is stable and long-lasting.
