Sekisui House Sells 'Net Zero Energy' Condominium Units

2017/11/20 12:37
Sousuke Kudou, technical writer
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An exterior perspective of "Grand Maison Kakuozan Kikuzaka-cho" (source: Sekisui House)

Sekisui House Ltd started to sell the condominium units of a luxury condominium building in Nagoya City, Aichi Prefecture, Japan, Nov 11, 2017.

All the units of the building, "Grand Maison Kakuozan Kikuzaka-cho," meet the "Zero Net Energy House (ZEH)" standards. The total number of the units is 12 (3LDK, 82.54-151.84m2). The price of each condominium unit ranges from about ¥70 million to 180 million (approx US$625,000-1,607,143).

On the roof of the building, 48kW of solar panels were set up. About 4kW of panels were connected to each condominium unit on average. Also, Sekisui House used the "Ene Farm" fuel cell cogeneration system to realize ZEH. Power generated with the solar power generation system is consumed in house, and surplus electricity is sold.

Furthermore, Sekisui House employed power-saving facilities such as LED lamps. The company improved the heat insulation performance of openings by 100% by using aluminum/plastic composite sash and composite glass containing argon gas, improving the heat insulation performance of each condominium unit by 40-50%.

The condominium building is a reinforced concrete building having three aboveground floors and one basement floor. For the building, Keikaku Cobo Co Ltd provides engineering and management services while Konoike Construction Co Ltd is responsible for the construction. The building will be completed in late February 2019, and residents will start to move in it in late April 2019.

Sekisui House promotes "Green First Zero," which is about ZEH detached houses. In fiscal 2016, the ratio of ZEH was 74%. As of the end of July 2017, the total number of its ZEH houses was 31,072. Also, the company announced that it will make its own efforts to abide by the Paris Agreement, and it is actively taking actions for reducing the amount of CO2 emitted from residences by 39.3% (a goal set by the Japanese government).