Funabashi Grand Oasis (Funabashi City, Chiba Prefecture)Community Development with 100% Renewable Energy

With respect to climate change mitigation and adaptation, the Daiwa House Group is promoting "decarbonization" through three phases (products and services, in-house activities, and procurement) and has set a goal called "Challenge ZERO 2055," with the aim of achieving "zero" environmental impact by 2055, the 100th year since Daiwa House Industry's founding.

Long-Term Environmental Vision

In this project, our Environment Energy Division is mainly supplying renewable electricity. We used renewable electricity as the power source for construction work in the residential and commercial facility zones. In addition, the Environment Energy Division and others supply electricity used by residents at single-family houses, condominiums, and rental housing, as well as electricity used in common areas and for streetlights.
Of the 394 renewable-energy power plants*1 managed and operated by the Group nationwide (with a generating capacity of approximately 446 MW), we supply mainly electricity generated at the Suganuma Hydroelectric Power Plant (generating output of approximately 2 MW) *2 in Hida City, Gifu Prefecture, which began full-scale operation in October 2018. By purchasing non-fossil certificates (with tracking)*3 which certify that the electricity is generated by this power plant, we are able to realize community development that uses only renewable-energy electricity and that complies with the international "RE100"*4 rules and specifications.

• *1 As of December 31, 2020, including scheduled operation
• *2 Electricity is supplied through a specified wholesale supply contract between Suganuma Hydroelectric Power Plant and this project. In the event of an electricity shortage, power is supplied from other renewable-energy power plants managed and operated by the Group.
• *3 Non-fossil certificates separate the environmental value (such as emitting no greenhouse gases, etc.) of electricity derived from renewable-energy generation, etc., and make it tradable. By adding the tracking, it is possible to identify the power plants from which the environmental value is derived.
• *4 An international initiative on renewable energy run by the Climate Group, an international non-profit organization.

The urban development under the 100% renewables-powered environment was expressed by an illustration drawn on the temporary fencing at the construction site. The illustration was designed to catch the attention of people passing by the construction site by using expressions that are understandable to both children and adults who are unfamiliar with renewable energy. We are actively involved in promoting and educating the public about renewable energy, and will continue to create towns that utilize clean electricity at many of our construction sites in the future.

Our condominium brand, PREMIST, proposes condominiums with high asset value and with consideration for the environment and disaster prevention to add more value for society and our customers.

At PREMIST Funabashi Tsukada, we have implemented a variety of advanced initiatives to reduce the environmental impact. The main initiatives are:
(1) Peak shaving
(2) Output adjustment according to demand
(3) Real-time indicator

At SECUREA Funabashi Grand Oasis, we have created a town block where "electric power is interchanged" among single-family houses. In the past, we realized the "interchange system for electric power among single-family houses" at SECUREA Toyota Kakimoto (Toyota City, Aichi Prefecture). This time, we have increased the number of houses that join this system. While there are limits to the efficient use of energy in individual houses, more efficient energy consumption is possible by working on an entire city block. SECUREA Funabashi Grand Oasis aims to achieve a "renewable energy lifestyle" by consuming as much of the electricity generated in the town as possible.
All single-family houses are equipped with solar power generation systems, lithium-ion storage batteries, and energy management systems (EMS) for effective control of equipment, and linked with the Internet communication network. As in the case of SECUREA Toyota Kakimoto (sales completed), the project consists of town blocks for the power interchange system, but in this case, the number of blocks has been increased and a more advanced energy management system using AI has been developed and introduced.