Lotte Construction Applies 50-Year Lifespan ‘Building Integrated Photovoltaic’ to Seocho Youth Housing
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Economic Content Platform for Investors
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by Choi Seoyoon
Published 16 Jul.2026 09:12(KST)
Lotte Construction announced on July 16 that it has developed a solar power generation module with more than twice the lifespan of conventional models and has applied it to the youth housing construction site near a subway station in Seocho-gu, Seoul.
This technology is a ‘Building Integrated Photovoltaic System (BIPV),’ which covers the outer wall of a building with solar panels. Unlike the traditional approach of installing panels on rooftops or vacant land, this method does not require additional installation space. It is mainly used for high-rise buildings in city centers where land is limited and the installation of solar equipment is challenging.
A long-lasting building-integrated solar power system by Lotte Construction installed at the youth housing construction site near the station in Seocho-dong, Seocho-gu, Seoul. Lotte Construction
The main feature is its extended lifespan. Traditional panels usually last about 20 years, but this newly developed module, created in collaboration with the Korea Institute of Energy Technology Evaluation and Planning and Epscore, has increased the service life to 50 years. This reduces the financial burden of frequent equipment replacement and maintenance for residents.
The installation method has also been simplified. Lotte Construction and Lotte Ecowall jointly developed and patented a technique that allows the panels to be attached directly to the building’s outer wall using only mounting components, eliminating the need for heavy supporting frames. As a result, on-site construction time has been reduced by more than 30% compared to conventional methods.
If a panel malfunctions, only the faulty module needs to be replaced, without dismantling the entire setup. This enhances repair convenience and reduces the risk of on-site accidents for workers, especially when working on high-rise building exteriors.
A representative from Lotte Construction said, “This technology was jointly developed with Epscore, a solar energy solution manufacturer, as part of the national project ‘Development of long-life BIPV modules considering building life cycles’ led by the Korea Institute of Energy Technology Evaluation and Planning. In line with the mandatory transition to zero-energy buildings, we will continue research and development to provide residents with tangible benefits from these technologies.”
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