In 2017, the American company "De Young Properties" began construction of three residential complexes near Fresno, California. Over 140 (one hundred and forty) single-family residential buildings have already been built. Each of the houses has the highest level of energy efficiency. The cost of each of the prefabricated Zero-energy homes is between $ 350,000 and $ 550,000 for turnkey completion. Thanks to their high energy efficiency, they save at least $ 10,000 a year for each household.
"Energy bills are quite high and constantly burden the budget. We usually sacrifice our comfort to reduce the electricity bill. Even if we optimize the energy needed for our comfort, this does not guarantee that our bill will also decrease. We have found a solution to our energy needs in the construction of zero-energy prefabricated homes.", says Brandon De Young, Executive Vice President.
They are more energy-efficient than typical low-energy buildings. In order for homes to be characterized as Zero-energy prefabricated homes, several additional systems must be installed. It is mandatory to install solar panels with a large enough capacity.
The combination of these modern systems significantly reduces the amount of energy consumed by the house.
Outside, the houses are built to optimize energy efficiency. They have a hermetically sealed construction and economical roofs, walls, windows, and foundations. These technologies also allow better temperature regulation, low humidity, less noise, and minimizing exposure to hazardous pollutants.
Ann Edminster is a member of the board of the Net-Zero Energy Coalition and a recognized specialist in environmentally friendly buildings. He argues that people should not think about the first costs of insulation and equipment because they are long-term assets.
"Homebuyers can make decisions about the design of the house. This offsets the extra cost of improving zero energy. It's like asking for a trunk on the roof of your car. You'll have to pay extra."
The construction of Zero-energy prefabricated homes underlines the commitment and efforts to reduce individual energy consumption. The goal is to find a healthy, reduced level of energy consumption, and to be satisfied with renewable sources. That is the big goal.