25 MW supply contract signed: ADLER Solar and Hanwha Q CELLS repower older PV systems

  • Hanwha Q CELLS supplies 25 MW Q.PLUS solar modules with Q.ANTUM technology for repowering projects to ADLER Solar; with the option to upgrade to 30 MW
  • ADLER Solar offers comprehensive repowering solutions from one source,
    Hanwha Q CELLS provides highly efficient solar modules with Q.ANTUM technology
  • For older PV systems suffering from yield loss, repowering measures with quality­ components are economically attractive for system operators, banks and investors


Bremen / Thalheim, 16th March 2017 – Hanwha Q CELLS GmbH and ADLER Solar Services GmbH have concluded a supply contract for 25 MW high efficiency Q.PLUS solar modules of the
Q CELLS brand with integrated Q.ANTUM technology, with the option to upgrade to an additional
5 MW. The German subsidiary of the world’s largest solar cell manufacturer Hanwha Q CELLS Co. Ltd (NASDAQ: HQCL), and the leading full service provider for the solar industry, ADLER Solar, are entering a long-term partnership with the goal to repower older PV systems. This business model is profitable for commercial/industrial PV system operators and banks or investors alike, whose solar systems are falling short of economic expectations due to an increasing drop in performance. Repowering measures restore the original nominal power of ground mounted and roof top installations, compensate profit loss and maximise feed-in tariffs. In order to avoid future recurrences, high efficient solar modules of the Q CELLS brand are installed.


Repowering means faster return on investment


“The repowering method is an extremely attractive solution for PV system operators, banks or investors alike, whose solar system show a progressive degradation“, says Michael Reck, Head of Repowering at ADLER Solar. “Repowering clients expect continuous high quality standards: Starting with the concept, through the components used, all the way to the implementation of the appropriate measures”, Recks states further. “Quality and high performance are top priorities of ADLER Solar for each repowering project and this is why we are thrilled to have found a competent module partner in Hanwha Q CELLS, internationally recognized for the extraordinary performance and reliability of their solar modules.“


“The large number of solar systems for which repowering measures would pay off are impressive evidence that it is worthwhile to invest in quality modules when it comes to photovoltaic­ systems“, Marko Schweitzer, Key Account Manager at Hanwha Q CELLS GmbH comments. “ADLER Solar’s decision as the most experienced full service provider of photovoltaic systems to install Q CELLS modules in their repowering projects is indicative of the high quality of our products.“


This is how the repowering process works


The process of repowering is designed to restore the original nominal power of photovoltaic systems with decreasing yield and as a result to maximise profits for the rest of the life cycle, thus ensuring the investor´s ROI. This method is worth considering for agricultural, commercial or industrial ground mounted and roof top installations alike. At first, the system must undergo an intensive appraisal. The project then is carried out on the basis of an individual strategy concept including a profitability analysis and possible financing options, and handed over together with the appropriate documentation after a test run. The professional execution as well as the use of quality components is a decisive factor for the success of the repowering measures.



About Hanwha Q CELLS

Hanwha Q CELLS Co., Ltd. (NASDAQ:HQCL) is one of the world´s largest and most recognized photovoltaic manufacturers for its high-performance, high-quality solar cells and modules. It is headquartered in Seoul, South Korea (Global Executive HQ) and Thalheim, Germany (Technology & Innovation HQ) with its diverse international manufacturing facilities in Malaysia and China. Hanwha Q CELLS offers the full spectrum of photovoltaic products, applications and solutions, from modules to kits to systems to large-scale solar power plants. Through its growing global business network spanning Europe, North America, Asia, South America, Africa and the Middle East, the company provides excellent services and long-term partnership to its customers in the utility, commercial, government and residential markets. Hanwha Q CELLS is a flagship company of Hanwha Group, a FORTUNE Global 500 firm and a Top 10 business enterprise in South Korea. For more information, visit:



About ADLER Solar

ADLER Solar is the leading full service provider for the solar industry. We deliver a broad spectrum of technical solutions and services that guarantee a high-performance level and smooth running of a photovoltaic plant throughout its entire life cycle. As independent PV experts with headquarters in Bremen and a branch in Waldkraiburg near Munich, as well as an office in London, we support manufacturers, operators, installers, technical advisors, insurance companies and banks with our expertise “Made in Germany”. Our service portfolio includes after-sales-services, repowering, survey reports, recalls, inverter-services, testing, claim management and procurement of spare parts.

ADLER Solar employs 100 members of staff in Germany, Europe and Japan. Since 2015, ADLER Solar has been operating in Japan as part of a joint venture with YKD, ADLER Solar Works. In the same year, the Norwegian company Aqualis ASA and ADLER Solar Services GmbH entered into a strategic partnership.



Contact: Hanwha Q CELLS GmbH

Corporate Communications

Jochen Endle, Oliver Beckel

Phone:    +49 (0)3494 6699 1012




Contact: ADLER Solar Services GmbH
Bettina Duske

Senior Manager Marketing Communications

Phone:      +49 (0)421 835 701 00