Every detached house in Fujisawa SST will be equipped with a solar power generation system and storage batteries. Devices for managing power consumption by home appliances will be integrated into a complete SMARTHEMS™ (Home Energy Management System). This will be a house that is comfortable and eco-friendly to live in and enables optimal control of household energy consumption while utilizing electricity generated from Fujisawa’s sunlight. Customers can choose between all-electric and fuel cell type homes (see chart below), according to which type best meets their particular lifestyle energy needs. This is how we aim to realize “independent and symbiotic energy management”, with which people generate their own home-use energy and utilize it in an efficient and smart manner.

Detached houses have the latest Energy Creation-storage Linked System for Home, which links a solar power generation system or storage battery to the ENE-FARM household fuel cell cogeneration system. Electric power generated by respective systems can be used to meet household requirements and excess power can be sold. In the future, individual houses that are independent in energy terms will be linked to the Building Energy Management System (BEMS)of facilities in the town to create a group. We have our sights set on the establishment of an independent and symbiotic energy management system where the value is expanded by linking individual groups to the town’s Community Energy Management System (CEMS). Utilizing these systems enables you to respond to next-generation energy use styles, where the town and residents cooperate in electricity conservation.

“Passive design” naturally utilizes wind power, sunlight, water, ambient heat and other natural resources of Fujisawa. “ Passiveness” is a concept enabling very comfortable living with minimal burden on energy resources. It incorporates traditional knowledge about homebuilding, such as the thatched roofs used on traditional Japanese houses. Based on this concept, roadside trees and garden paths are designed along with comfortable wind flows from the Shonan beach in Fujisawa SST. Town design guidelines requiring building houses with at least a 1.6 m margin allows town design that does not block sunlight. Passive design enables houses that will also be equipped to achieve optimal energy management efficiency through “active” devices for energy creation, storage and saving based on solar energy. The active devices and passive technologies will enable comfortable and eco-friendly living throughout the entire house through a synergistic effect.

In Fujisawa SST, electric power of houses and all facilities of the town will be visualized with Smart HEMS or BEMS, including electric power generated by solar power generation systems or the power consumed by home appliances. In addition, energy consulting services will be offered based on the family structure or the power use status. We will provide eco-friendly and budget-pleasing support by helping residents control excessive electric power use or sell generated power.

Detached houses of Fujisawa SST will be equipped with the Energy Creation-storage Linked System for Home, which controls not only the solar power generation system and storage batteries but also ENE-FARM. The system will achieve more stable power supply by allowing the use of solar-generated electricity and electricity generated by ENE-FARM even in the event of a power outage. Hot water will also be supplied. Furthermore, the energy management system will continue to supply energy in emergencies such as by distributing power to lighting, refrigerators, TVs and other pieces of equipment essential for daily life in accordance with selected settings.

In the south of the town, a community solar power generation system was installed on public land. Under normal circumstances, this system will feed power into power grids and contribute to low-carbon lifestyles in the region. In the event of a disaster, it will become an emergency power source for Fujisawa SST and neighboring areas. The system consisting of compact units with solar power generation functions can be easily moved by unit. In the future, versatile use of this system will become possible as a distributed renewable energy source. We are building a disaster-resistant town by installing solar power generation systems and storage batteries in the Committee SITE, the community center in the Central Park. Furthermore, we will lay power lines underground and use mediumpressure gas conduits with high earthquake resistance.

We will raise residents’ awareness of efficient hardware use in daily life scenarios in preparation for emergencies. Ten to twenty households will create a mutual assistance group and participate in seasonal or disaster prevention events organized by the town management company. Residents will strengthen group ties and deepen cooperation through communications, which will help them cooperate in emergencies. The town management company will support the operation of energy-related equipment of houses and the town for continuously maintaining and evolving hardware for emergencies. It will provide a finely-tuned backup service such as offering advice on replacement timing or performing periodic maintenance.