Four years and about 45 million dollars of investment later since the launch of the project,
the nation's very first energy self-sufficient apartment complex is open for viewers.
President Moon Jae-in had plenty of compliments for the so-called energy-zero house -- or "EZ House" for short.
For the South Korean President, the new apartment complex in Nowon-gu district is an emblem of his key environmental policy -- shifting away from nuclear and coal-fired power plants, while implementing and increasing clean and renewable energy.
"For such a policy to succeed, we will need to have more villages and apartments that are energy self-sufficient sprouting up all over the country."
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A total of one hundred and twenty-one households are set to move in, 80 percent of them newlyweds, and 10 percent senior citizens.
The South Korean President said the Nowon EZ House, a model of self-sufficiency, dramatically conserves energy while producing essential power.
President Moon called the project significant because the central government got involved and worked with related ministries, local governments, scholars, and local residents.
He underscored that nearly every design and material used in the EZ house was produced in Korea, saying that proves Seoul is more than capable of independently opening an era of new energy.
According to the Ministry of Land, Infrastructure and Transport, the EZ House will allow residents to save up to 900 U.S. dollars of energy costs a year, as the building creates enough energy for cooling, ventilation, and lighting.
It has 13-hundred solar panels and each unit was built using energy-saving technology, including triple-glazed windows, aluminum blinds and high-quality insulation.
The concrete walls are twice as thick as ordinary buildings, …which is why the apartment building can maintain a temperature of 20 degrees Celsius during winter …without heating.
Geothermal energy is also used to provide additional heat.
Hwang Hojun, Arirang News.