Demirdöküm has invested 1.4 million pounds in a newly produced solar energy system, said Chairman Christoph Grosser, adding that the news system both guaranteed better efficiency and promised a fashionable design, enabling better heat insulation.
Speaking to press during his visit in the Aegean province of Denizli on July 26 to review the Demirdöküm Solar Sunrol systems installed at an apartment complex, Grosser said the company had made two large investments since 2008, including Solar Sunrol and an air-conditioner factory.
While the company was a part of the Koç group, it did not make any investments, he said, but did so after it was acquired by Vaillant Group, making an 8 million-pound investment.
“We have designed an air conditioner, 78 percent of which is composed of industrial components from Turkish suppliers,” he said. “We mostly used Turkish components rather than those imported from China. Since 2009, we have introduced 600,000 air conditioners into the market every year.”
Speaking about Sunrol Solar products, Grosser said these were a result of intense research and development studies, adding that the company had made use of a special production technology called Roll Bond, a first in Turkey, for which the company invested 1.4 million pounds at its Bozüyük factory in the Marmara province of Bilecik.
“By virtue of the Roll Bond system, we have produced the best performance solar panel with 83.6 percent efficiency. The system can even work at minus 40 degrees Celsius.”
Higher heat capacity
Grosser said the most prominent feature of the system was that it used 54 channels to circulate water rather than 18 or 24 as is used in conventional systems.
“This makes the panel have higher heat capacity and instead of using three conventional panels, we can do perfectly well with two of these panels,” he said. “This means by using our product you can save one panel.”
The system enhances efficiency from 74 to 86 percent, while the installation process is also faster.
Moreover, the panels are installed on roofs without welding, meaning that because the panels have high heat capacity, they can be installed vertically on building façades.
“Normally, panels require a certain degree of slope; however, our system does not need a slope surface due to its high efficiency,” he said. “We are aiming to fix the ugly look on the rooftops in the future, working on more fashionable designs for our solar system. Thus, we hope that we both will acquire more efficiency and enable a better look in addition to better heat insulation. “
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