TW Solar - Solar Panel Reviews

About TW Solar

China's TW Solar, or Tongwei Solar, is probably the biggest solar manufacturer you've never heard of - but they've been on the PV scene since 2006.

Company Info

Tongwei produces polysilicon, cells and solar panels. It supplies cells to many of the world's leading panel manufacturers.

As at September 2024, the firm had an annual polysilicon production capacity of 650,000 tons, annual solar cell production capacity of more than 95GW, and an annual module production capacity of 75GW. In mid-2022, the company claimed it was the first manufacturer in the industry to complete 100 GW of solar cell shipments. Tongwei  is also a major employer, boasting more than 60,000 employees worldwide.

While the company supplies panels for the Australian market, it is yet to establish a physical office here. Tongwei Solar panels are imported into Australia by wholesalers Blue Sun Group, Supply Partners, One Stop Warehouse and Krannich Solar.

TW Solar's products are manufactured at a number of facilities in China. One is in Hefei, Anhui province; which has been in operation since late 2013. There are another two in in Chengdu, Sichuan province, and also a factory in Meishan, Sichuan province.

In an example of "co-opetition", TW Solar also teamed up with another Chinese PV manufacturing heavyweight, Trina Solar, on the Tonghe New Energy project. This project involves polysilicon production with an annual output of 40,000 tons, ingot production of 15GW each year, a wafer cutting project (15GW annually), and a solar cell project with an annual output of 15GW.

Residential TW Solar Panels

While its primary focus is on solar cell production, Tongwei also produces solar panels for residential, commercial and utility-scale applications. TW Solar panels available and approved for use in Australia are listed on the Clean Energy Council's approved solar module list under the company name of "Tongwei Co Ltd". 

TWMND-54HS/HB Series 

Manufacturing a dizzying array of solar modules, the company's main product for the Australian home rooftop market are solar panels with half-cut, N-Type cells.

TW Solar’s TWMND-54HS modules for residential applications are available in 430W, 435W and 440W capacities. They have a 22% - 22.5% conversion efficiency and a temperature coefficient of -0.28%/?. These panels measure 1722 ×1134 ×30mm and weigh 20.5 kilograms. 

There's also all-black versions of this panel - the TWMND-54HB.

Warranty Info 

TW Solar TWMND-54HS/HB  panels come with a 15 year product warranty and the firm also offers a 30-year performance warranty. The first year of power loss is warranted to be within 1%, and the loss from the 2nd to the 30th year within 0.4% annually.

Again, there is no local contact (yet) for warranty claims - but your first port of call if there's a warranty issue is your installer. 

If you've had TW Solar panels installed on your rooftop, let us know your opinion of them by leaving a review.