Qcells Brand Guidelines: Solar Valley, a 2012 Insolvency and a Korean Owner

Four founders, a Berlin collective and a cell line in Saxony-Anhalt, 1999 to 2009.

Qcells began in eastern Germany at the end of the 1990s. The Korea Times, reporting in August 2012, gave its founding year as 1999. The company’s own timeline says it was founded in Thalheim, in Saxony-Anhalt, while English Wikipedia places the founding in Bitterfeld-Wolfen and says the company still keeps engineering offices at its original Thalheim headquarters. Deutsche Welle, in a report dated 14 April 2012, named the founders as Paul Grunow, Holger Feist, Anton Milner and Reiner Lemoine, and said the business came out of Wuseltronik, a Berlin engineering research collective that also produced the solar maker Solon.

Production began in 2001. Deutsche Welle said the first multicrystalline solar cells came off the line in July 2001, and English Wikipedia gives the date as 23 July 2001. Eco-Business, reporting on 25 October 2012, said the company started making silicon solar cells in the first half of that year with 19 employees and later grew to more than 2,000. The company says its first cell was called the Q6, and that a larger six-inch cell, the Q6L, followed in 2004.

The site gave its name to a region. Deutsche Welle described a 300-hectare fenced area off the motorway between Leipzig and Berlin, signposted as “Solar Valley”, with three glass office towers at the company’s headquarters, and set the story against the closure of the area’s brown-coal plants and chemical works after German reunification. Qcells says that other companies opened facilities in the surrounding area once it had set up there, which is how the name Solar Valley came about.

Growth was fast. English Wikipedia says the company listed on the Frankfurt Stock Exchange on 5 October 2005, and The Korea Times said it was the world’s largest producer of photovoltaic cells in 2008. The company also built up thin-film businesses: English Wikipedia lists the cadmium telluride maker Calyxo, set up in 2005, and Solibro, a joint venture of 2006 that it took over in 2009 and sold in 2012.

Insolvency, a Korean buyer and a new name, 2008 to 2020.

The boom did not last. Deutsche Welle said the financial crisis of late 2008 hit the photovoltaic business and brought the company’s first 500 redundancies. A recovery at the end of 2010 was followed by a sharp fall in prices and overcapacity on the world market, and on 3 April 2012 the company filed for bankruptcy. The Korea Times said it was the fourth German solar panel maker to do so, and linked the failures to reduced state support and competition from China.

A buyer came from Korea. The Korea Times reported on 27 August 2012 that Hanwha Chemical, part of the Hanwha Group, had agreed to acquire Q-Cells, taking over its subsidiary in Malaysia and its German research and production facilities, subject to approval by its board and by Q-Cells’ creditors. The paper said Hanwha had sent more than 100 people to Germany and Malaysia over four months to assess the business, and had bought the Chinese cell maker Solarfun two years earlier.

The deal closed within weeks. Eco-Business reported in October 2012 that the group had officially launched Hanwha Q.CELLS, completing the acquisition through its subsidiary Hanwha Solar Germany. English Wikipedia describes the purchase as a takeover out of bankruptcy and says Hanwha later merged its Chinese unit, by then called Hanwha SolarOne, into Qcells in December 2014.

The corporate structure kept changing. English Wikipedia says the solar business was combined with Hanwha’s advanced materials arm in 2018 and became part of Hanwha Solutions, the group’s energy and petrochemical company, in 2020, and that the name in use today, Qcells, replaced the earlier Hanwha Qcells. The company’s headquarters are now in Seoul, while its engineering offices remain at Thalheim, and the company presents its product range as “Engineered in Germany.”

Modules on roofs and fields.

Solar panel makers sell a product that looks much the same from a distance: a dark rectangle of glass divided into a grid of cells. Their visual identities work around that sameness. Company websites and brochures return again and again to a few scenes — black or blue module grids on house roofs, long rows of panels across desert or farmland at utility-scale plants, and close-ups of individual cells, where the fine lines of the metal contacts, or their absence, become the detail that sets one technology apart from another.

The factory is the second stage set. Makers show clean production lines, robotic handling and testing laboratories, and they name their cell technologies — TOPCon, heterojunction, back contact — the way other industries name materials. Product families are given short, branded names, and colour is used sparingly: a corporate blue, green or orange against white, with the dark face of the module doing most of the visual work.

Because most panels reach homes and businesses through others, makers also speak to installers. Partner programmes, installer training, distributor networks and warranty pages appear prominently on their websites, addressed to the people who specify and fit the panels.

Trade fairs are where the industry shows itself in public. Intersolar Europe at the Messe München and SNEC in Shanghai draw module makers from China, Europe, North America and elsewhere, who use large booths to launch new module families, storage systems and inverters side by side. This guide sets out what can be checked about each maker — where it began, who owns it, and what it makes — and marks clearly what rests only on the company’s own word.

A Q in every product name and a factory base in Georgia.

The brand builds its product names on the letter Q. The company’s US site lists modules in the Q.TRON and Q.PEAK DUO ranges and describes the cell design behind them as Q.ANTUM technology; its timeline adds the Q.HOME storage system, which it says it first presented in 2016, and lists Intersolar Awards for Q.PEAK modules in 2017 and 2018. The written name has shifted over the years, from Q-Cells in press reports of 2012 to Hanwha Q.CELLS at the takeover and Qcells today. In April 2012, Deutsche Welle noted white flags bearing a blue and white logo outside the headquarters towers.

Manufacturing has followed the owner. English Wikipedia lists production in Dalton and Cartersville, Georgia, in Cyberjaya, Malaysia, and in Jincheon, South Korea. The company says it opened the Dalton plant in 2019, and a Qcells press release of June 2026 said the Dalton factory had been expanded in late 2023. On 9 June 2026, Latitude Media reported that Qcells had begun making solar cells at Cartersville, which it described as the only US factory making ingots, wafers and cells under one roof, while noting that the company still imported most of its components from South Korea and Malaysia.

The same report recorded a trade episode. Latitude Media said that in 2025 US Customs and Border Protection had slowed shipments of Qcells’ solar cells for months under a law that bars goods made with forced labour in China’s Xinjiang region from entering the country. Qcells said it was certain its supply chain was free of material from Xinjiang, and it had returned to normal operations by March, Latitude Media reported, citing pv magazine.

For a design guide, Qcells shows how a brand can keep a single letter at the centre of its identity through an insolvency, a foreign takeover and the growth of manufacturing in Asia and Georgia. Compare Meyer Burger, a Swiss solar maker, and First Solar, an American module maker. For this guide we use a Solar Valley navy, a slate blue and a cell silver with a sans, an unofficial interpretation; no product or logo is reproduced.

Keep Qcells’s identity on hand — save it to a board in the Made Good inspiration library.