Mitsui Fudosan Residential Co., Ltd. is offering a package which combines hard and soft environment responses of for-sale condominiums into one. The base is formed by the four environmental designs of “energy design,” which includes creation, storage, and energy conservation, “passive design,” which utilizes the power of nature, “mobility design,” which controls CO2 emissions by diversifying methods of movement, and “community design,” which promotes eco-activities and communication activities of residents.
The offering of a new effort with these four environmental designs as the base was started in fiscal 2011. Additionally, although the environment-responsive package has been offered centered around the Tokyo metropolitan area, in the future it is planned to be expanded at the appropriate time in the Kansai region as well.
Expansion of Environment-Responsive Package of For-Sale Condominiums of Mitsui Fudosan Residential Co., Ltd.
|Four environmental designs
||LED illumination, high-efficiency gas hot water supply equipment, solar power generation, energy visualization, etc.
||Installing solar power generators as standard equipment (three major metropolitan areas, excluding emergency power generator installed properties), incorporation of HEMS and MEMS
||Eco Glass (Low-E double-glazed glass, etc.), swing louvers, water-retaining blocks, green curtain hooks, etc.
||Planning that makes consideration for the flow of wind
||Chargers for electric vehicles, car sharing using eco vehicles, bicycles sharing, etc.
||Car sharing through electric automobiles, home delivery rental car service, utilization of emergency electricity of car sharing electric automobiles
||ECO Challenge for Residences, establishment of community organization, etc.
||Holding new resident greeting and meeting, proposing ideas for community support at existing condominiums, sustainable community research group demonstration experiment
4 environmental designs
Standard Installment of Solar Power Generation Facilities and Emergency Storage Batteries
With the newly built for-sale condominiums in the three major metropolitan areas, which began to be designed after December 2011, as the target, solar power generation facilities and emergency storage batteries will be standardly installed as a general rule. The solar power generation facilities to be installed will have power generation capabilities of over 3kW and the storage batteries will have a storage capacity of over 1kWh. The power generated by solar generation will be used in the common-use areas. Additionally, as emergency power in times of disasters, it will be used in common-use areas, such as entrance halls, to run information devices for retrieving disaster information such as One-Seg TVs, radios, and cellphones.
Incorporation of HEMS and MEMS
The Home Energy Management System (HEMS) is an energy management system for each residence that performs automatic control of temperature setting of air conditioners and visualization, analysis and advice giving for power usage. The Mansion Energy Management System (MEMS) is an energy management system for whole condominiums that understands the power supply and demand peak information and the power demand status of the whole condominium and automatically controls common facilities and gives control instructions for HEMS. These will be introduced centered on large-scale newly built condominiums in the Tokyo metropolitan area.
Introducing Car Sharing that Uses Electric Automobiles
Centered on the newly built for-sale condominiums in the Tokyo metropolitan area, car sharing that uses electric automobiles will be introduced. This is a system in which residents share electric automobiles among each other. The introduction of car sharing such as hybrid cars has been furthered until now, but this is the first effort for car sharing of electric automobiles in which recharging and a creative reservation system are needed. Rechargers have been installed in parking lots within condominiums.
Additionally, the electric automobiles for the car sharing can also be used as an emergency power source in power outages.
The timely introduction of these services are planned to begin with “Park Homes Okurayama” (Yokohama-shi, Kohoku-ku).
Environmental Responses of “Park Homes Okurayama”
Park Homes Okurayama
For the realization of a smart and sustainable society, “Park Homes Okurayama,” as a next generation type condominium that complexly combines “energy design,” “mobility design” and “community design” aims for the standards of the future.
Environmental Responses of “Park Homes Okurayama”
- Energy design
In addition to incorporating LED illumination and energy conserving machinery such as motion sensors, energy creation and storage will be performed by introducing solar power generation facilities (power generating capabilities of 20kW) and lithium ion storage batteries (storage capacity of 30kWh). Further, energy management of the whole condominium that links HEMS and MEMS will be performed.
- Mobility design
It will be offered by combining electric automobile car sharing (one automobile) and home delivery rental car services. Further, bicycle sharing through electric assistance bicycles (12 bicycles) will also be introduced. Additionally, automobile power rechargers/feeders will be installed, enabling the batteries of car sharing electric automobiles to be used as emergency power sources in times of disasters.
- Community design
A mechanism that stimulates community formation among residents and people in the region will be provided. For example, a seasonal flower planting and changing in community gardens and living being observation workshops are planned.
Performing the “Energy Management Systems for Condominiums” Demonstrative Business
The “Energy Management Systems for Condominiums” Demonstrative Business of the “Yokohama Smart City Project” will be performed at “Park Homes Okurayama” (demonstration period: December 2012 to 2014). Energy consumption in individual residences will be managed by HEMS and energy use of common-use areas will be managed by MEMS. MEMS and HEMS will be connected to manage the energy of the whole condominium. Further, by connecting with the Community Energy Management System (CEMS), which manages the energy of the entire region, and based on the energy usage information of the entire region that CEMS dispatches, through performing energy control that fits the circumstances of the whole condominium, efforts to optimize the energy usage of the whole condominium and of the region will be made.
Further, the amount of energy used in each residence will be visualized in detail on each tablet type energy display machine standardly installed in all residences, and a monitor to be installed in the entrance hall will visualize things such as the amount of solar power generated and the energy used in the whole condominium.
This demonstrative business was adopted as a for-sale condominium for the first time at the “fiscal 2011 next generation energy and social system demonstrative business” of the Ministry of Economy, Trade and Industry.
Conceptual diagram of linking HEMS and MEMS with CEMS
Making Efforts to Solve Urban Problems with Smart Cities
Mitsui Fudosan Residential Co., Ltd.
Yokohama branch, development section
“Park Homes Okurayama” will emerge as a smart condominium by complexly designing people, architecture and energy. The energy not only of the proprietary areas but also of the common-use areas will be visualized. A new mobility style will be proposed, and a community support program subsequent to residing will be introduced. We will continue to work on urban problem solving by creating a smart city through social demonstration.
Introducing a new system that makes energy use smart at “Park Tower Nishishinjuku M'sPort”
At “Park Tower Nishishinjuku M'sPort” (Shinjuku-ku, Tokyo planned for completion in January 2014), a new system that makes the energy use of the whole condominium smart by combining the energy management through the connection between MEMS and HEMS provided by Toshiba Corporation and profit redistribution by a demand response that responds to the power supply and demand will be introduced.
By connecting MEMS and HEMS, energy management through automatic power controls in accordance with the whole condominium'sstatus, automatically controlling air conditioner temperature settings and facilities and equipment of common-use areas in accordance with the power supply and demand peak for example, will be performed. Additionally, it is planned to introduce a mechanism in which residents can earn electricity bill reduction points in accordance with their power usage by lowering the power supply demand peak by reducing peak demand and stably managing electric systems by controlling the power usage of the consumer at power demand peak hours.
Conceptual diagram of energy management through MEMS and HEMS
Environmental Responses of “Park City Minamiurawa”
Completion image of
Park City Minamiurawa
At “Park City Minamiurawa” (Saitama-shi, Minami-ku, planned for completion in January 2013), besides LED illumination (common-use areas), a solar power generation facility (power generation capability of 10kW) and a storage battery (storage capacity of 60kWh), the first for a condominium in Saitama, are being introduced. The generated and stored power will be used in common-use areas during regular hours and power outages. Additionally, water storage blocks, passive windows, car sharing through electric automobiles, bicycle sharing through electric assistance bicycles are also being introduced. Further, it is planned to offer mechanisms such as “Residence ECO Challenge,” “Living Goods Sharing,” and “Hand-Me-Downs Project” as community design.
Environmental Responses of “Park City Minamiurawa”
|Four environmental designs
||LED illumination (common-use areas), solar power generation facilities (10kW), storage batteries (60kWh), visualization of CO2 emissions and power generation
||Low-E pair glass, water storage block, cool spot, cooling mist, passive window
||Car sharing through an electric automobile, bicycle sharing through electric assistance bicycle (six bicycles), electric automobile recharger.
||Residence ECO challenge, living goods sharing, hand-me-downs project, living circle
Winning the Grand Prize of the “Energy Conserving Illumination Design Award 2011”
Outside facility illumination or
Park City Kashiwanoha Campus
The “Park City Kashiwanoha Campus Nibangai Common” (Kashiwa-shi, Chiba) won the grand prize of the “Energy Conserving Illumination Design Award 2011” in the “town, section, and other facilities department” sponsored by the Ministry of the Environment. This award, purposed to promote energy conserving measures for illumination, publicly acknowledges facilities that achieve both excellent energy conservation results and high quality design. The “Park City Kashiwanoha Campus Nibangai Common” was rated for its “area-making that unites outside facility illumination that establishes both quality design and practicality and unites CO2 visualization of living space.”
CASBEE Certification Acquisition
“Park City Kashiwanoha Campus Nibangai” (Kashiwa-shi, Chiba partially completed) acquired the highest S rank certification of CASBEE Kashiwa in October 2011. It is the first apartment complex to acquire S rank certification.
&Earth Class “Residence ECO Challenge”
Website of Residence ECO Challenge
“Residence ECO Challenge”
The “Residence ECO Challenge” is a website that supports environmental activities and is managed by Mitsui Fudosan Residential Co., Ltd. It offers mechanisms in which participants can enjoyably and continually engage in environmental efforts, such as a household environmental accounting that can calculate the residence'sCO2 emissions and an ECO challenge in which ECO peace points earned by making ECO topic efforts can be traded for ECO goods.
From fiscal 2010, under the concept of “ the “&Earth class ‘Residence ECO Challenge’” an environment themed class trip is held for children with the aim of making a city that lives in harmony with the environment. It is an environment class in which children four years of age to elementary school children can enjoyably learn about things such as global warming and through ECO challenges that can be done at home.
The newly built rental condominiums are enlarging the LED illumination places of common-use areas and incorporating Low-E pair glass and double-glazed glass in exclusive-use areas, and holding product planning with heightened energy conservation performance. Further, the responses to electric automobiles and introduction of energy creating equipment such as solar power generators are being considered for some of the properties. Additionally, residential eco point acquisition was performed for some of the newly built properties.
Acquisition of residential eco points
Residential eco points were acquired in “Park Access Asakusabashi Nichome” (Taito-ku, Tokyo), “Park Access Ueno” (Taito-ku, Tokyo), “Park Access Nishisugamo” (Kita-ku, Tokyo), three properties completed in fiscal 2011.
The residential eco point system is a system in which points which can be traded for products and services when newly building energy conserving residences or reforming them, and being a residence that meets the top runner standard * of the Energy Conservation Law is an essential condition in the case of condominiums.
*Top Runner Standard (Residence):
On top of fulfilling the next generation energy conservation standards, reducing energy usage by roughly 10% compared to residences equipped with common facilities (air conditioners, illumination, water heaters, etc.) as of fiscal 2008 is sought.
The detached for-sale residences of Mitsui Fudosan Residential Co., Ltd. began furthering the supply of residences that meet the top runner standards of the energy conservation law from September 2010 in the Tokyo metropolitan area and the Kansai region.
In fiscal 2011, construction confirmation was acquired for 576 residences in 38 properties meeting the top runner standards.
"Fine Court Tanashi Nishiharacho Cool Breeze Park"
At the "Fine Court Tanashi Nishiharacho Cool Breeze Park" (Nishitokyo-shi, Tokyo), completed in February 2012, in addition to energy conserving Grade 4 equivalent heat insulation performance, along with incorporating motion sensor illumination and ventilation fans and LED lighting, etc., all residences are equipped with a remote controlled gas boiler "Save Earth Display" to visualize CO2 emissions, the top runner standards of the energy conservation law have been adapted. In addition, along with introducing gravitational ventilation that utilizes the natural flow of air and eaves that make consideration for sunlight, an outdoor outlet for electric automobiles, etc., has been installed. Further, a streetscape that incorporates the nature of the Musashino neighborhood was created. These features were evaluated, and the model house (building 1) acquired the first S rank (the highest rank) of the CASBEE newly built detached buildings (2010 edition) of the fine court series.
Mitsui Home Co., Ltd. mentioned its “wooden house, living design” declaration as part of its vision for the environment and are deciding on and promoting their mid-term environmental plan “eco action plan 2016.”
The custom-built detached residences of Mitsui Home Co., Ltd. are wooden houses made by the two-by-four method, standardly follow the next generation energy conservation standards, and possess both high energy conservation performance and comfort. It is also making efforts to spread solar power generation systems, high-efficiency water heaters and for-residence fuel battery cogeneration systems, with the percentage of custom-built detached residences ordered and received in fiscal 2011 equipped with solar power generation systems at 42.9%.
Additionally, efforts are being made for research of next generation environmentally responsive residences such as the introduction of smart houses and development of LCCM residences.
“Smart 2x4 –self-sufficiently comfortable living-”
“Smart 2x4 –self-sufficiently comfortable living–” is a summary of the way Mitsui Home Co., Ltd. thinks about smart houses.
Living that cares about energy and smartness is not just about getting the right equipment, but with the idea of the necessity of the basic structure of sealage and heat insulation of the wooden house two-by-four construction method and a plan and design that leverages the power of nature as the base, it proposes self-sufficiently comfortable living by passive eco, active eco of energy creating and saving facilities, smart facilities, and comfort facilities that utilize the power of nature precisely because of the wooden house two-by-four construction method.
Proposal of “Smart 2x4”
Two-by-four construction method
|Wooden structure that allows long-term fixation of carbon, high sealage, high heat insulation and a structure strong against earthquakes
|Utilizing the Power of Nature (Passive Eco)
||Reading the site, utilizing the power of greenery, effectively using the sun, using wind power
|Energy Creating and Saving Facilities (Active Eco)
||Solar power generators, efficient solar heat, energy farms, high-efficiency water heaters
||Energy Observation System (HEMS), for-residence batteries, outlet for electric automobiles
||Facilities to reduce and utilize garbage, facilities to take care of water and energy, facilities that condition the atmospheric environment
Sale of the New Product “Chou Chou with Eco”
In January 2012, Mitsui Home Co., Ltd. began selling nationwide their new product “Chou Chou with Eco,” a detached custom-built residence that contains various environmental plans. With the past product “Chou Chou,” which had the concept of “a residence that fulfills your wishes” and was aimed at women, as the base, it is a product that realizes a comfortable and easy daily eco life by including passive and active eco plans that fit customers’ lifestyles.
Development of LCCM Residences
Experimental building of
the “next generation smart
2x4 demonstration experiment”
An LCCM residence refers to a “life cycle minus carbon residence” that has total negative CO2 emission over its life cycle, from when it is built, lived in, until it is disassembled, and Mitsui Home Co., Ltd. is making efforts to develop them.
In fiscal 2011, the certification system for LCCM residences by the Institute for Building Environment and Energy Conservation was started. As part of its "Kashiwanoha Smart City Project" Mitsui Home Co., Ltd. plans to acquire LCCM residence certification for the experimental building of the “next generation smart 2x4 demonstration experiment” that was completed in summer 2012.