• Homes that help achieve zero power uncertainties enable reduced CO2 emissions and are friendly to people and the environment.

    In 2017, the Housing Company began selling a new type of house, called the Smart Power Station 100% Edition. Meant as an ideal for Japanese homes of the future, in this house all of life's power requirements are satisfied through electricity generated by solar power. Developed under a concept of "ultimate living with zero power uncertainties," our aim was to create a home in which people could live without having to depend on purchasing power from electric utilities every day of the year. The Company's proprietarily developed high-capacity film-type lithium-ion batteries and vehicle-to-home (VtoH) system provide more than a day's worth of electricity.

    To prevent global warming, Sekisui Heim has been working to develop homes that are self-sufficient on renewable energy power sources and that allow people to go about their everyday lives unhindered even during power outages, but this has proven impossible to achieve with solar power generation equipment alone. For this reason, the company took up the challenge of combining power-storage technologies, such as installing storage batteries and making use of the power stored in electric vehicles. Through these efforts, Sekisui Heim was able to meet its goal of meeting 100% of energy needs. As all electricity is provided by renewable energy, CO2 emissions are reduced by 3.4 tons* per year, around four times the reduction generally achieved by homes with solar power generation equipment.

  • Ryuji Oka

    Executive Chief Engineer
    Interior Decoration & Facilities Development
    House Development Division
    Product Development Division
    Housing Company

  • *Calculation assumptions: TEPCO Energy Partner's adjusted emission factor of 0.000491 (actual value for fiscal 2015, in t-CO2/kWh) × 7,000kWh (the median value for electricity consumed in one year)

My dream is to see homes that are energy-self-sufficient, without uncertainties about electric power, become the standard for housing throughout Japan. I think that if in addition to homes, we can achieve a society free of uncertainties about electric power supplies at the town and community level, we will be able to address more imminent societal issues.

Electricity (Energy Flow)