Toyota City Low-Carbon Society System Verification Project (Smart Melit)

Latest Toyota City news items

Launching Sales of a New HEMS Model Using Demonstration Results

Within the Toyota City low-carbon society system demonstration project (Smart Melit (Smart Mobility & Energy Life in Toyota City)), DENSO CORPORATION performed a demonstration that achieved energy savings by efficiently using up electric power generated by photovoltaic (PV) power generation systems and optimally controlling energy equipment with help from a home energy management system (HEMS) covering a total of 67 houses. Using the demonstration results, DENSO launched a new HEMS model in December 2014.

As a Future Challenge City, We Welcome Corporate Proving Experiments – An Interview with Toyota City Mayor Toshihiko Ota

The Energy Data Management System (EDMS), designed to enable the region to minimize its carbon footprint and equalize the use of electric power, as well as the Ha:mo RIDE super-compact EV sharing service, are among projects that have begun operating as part of the Toyota City low-carbon society system proving project "Smart Melit (Smart Mobility & Energy Life in Toyota City)." To coincide with this, Toyota City has opened Toyota Ecoful Town, where people can experience life in the low-carbon society of the future. We also co-hosted the "High-Level Symposium on Sustainable Cities" with the United Nations. We recently asked Toyota City Mayor Toshihiko Ota about the outcomes of Smart Melit.

Suggestions for Energy Conservation and How to Use PHV, Tailored to Each Household's Lifestyle

The Energy Data Management System (EDMS), designed to enable the region to minimize its carbon footprint and equalize the use of electric power, has begun operating as part of the Toyota City low-carbon society system verification project "Smart Melit (Smart Mobility & Energy Life in Toyota City)." A service began in November 2014 that offers recommendations to covered households. Based on the amount of electric power each household uses and on its plug-in hybrid vehicle (PHV) usage status, it suggests ways to save electricity and the best times to charge their PHVs, among other information.

Regional information

Name of city Toyota City
Area 918km2(as of April 2012)
Population 422,830 (as of April 2012)
Locations for the operational experiments The Higashiyama and Takahashi districts for trials of HEMS and EDMS, and Toyota City as a whole for trials of a low-carbon transport system
Area covered by the operational experiments 918km2(the entire area of Toyota City)
Number of households involved in the operational experiments 67 newly constructed residences and 160 existing residences
Number of workplaces involved in the operational experiments Two commercial buildings, one distribution center, and Toyota Ecoful Town, constructed to showcase the city's efforts to build a low-carbon society.
Targets for introduction of PV generation, etc. 61.2% rate of renewable energy, 4,000 next-generation vehicles

About the city

A regional urban center in the north of Aichi Prefecture, Toyota City is the prefecture's largest city in terms of area and boasts its second-largest population. Toyota City is an in-land industrial city situated on the middle stretches of the Yahagi River, and is known for being a "company castle town," the location of the headquarters of Toyota Motor Corporation. As a model city for the EV&PHV Town Concept and ITS operational experiments, Toyota City has commenced the introduction of next-generation vehicles and transport systems, and is working towards the realization of a low-carbon society.

Overview of the project

This project seeks to envision the home environment in ten years' time, when there will be introduction of renewable energy and more extensive use of various energy-saving and energy storage devices. The power transfer patterns of a variety of devices, including next-generation vehicles, will be integrated and controlled by HEMS, enabling users to enjoy a pleasant and convenient low-carbon lifestyle without waste and without effort. Advancing the introduction of next-generation mobility modalities, the building of public transport infrastructure, and the presentation of new forms of transport use in tandem, we are aiming to become the city with the world's highest level of harmony between cars and people. We will use a range of energy sources including city gas and biomass, and make full use of heat and electricity. We will offer a variety of incentives to encourage citizens to engage in their own carbon-reduction activities, at the same time as making energy use visible, providing support for action, and enabling control of energy use through familiar terminal devices, making it possible to select from an optimal menu of low-carbon activities for the entire living environment with a minimum of effort.

Project orientation

Focusing on the household sector (residences and transport), the project seeks to identify medium-term technological issues based on an image of the household in ten years' time, when, for example, photovoltaic (PV) generation will be widespread and grid parity will have been established. Without rushing to raising the social cost, we will develop low-carbon systems that present the overall optimum at the level of the community as a whole. In concrete terms, we will offer highly convenient and satisfying incentives (such as "eco points") for activities conducted by citizens that contribute to reducing carbon (saving energy, reducing the load on the power system, making effective use of green power, etc.) in order to study the change in citizens' behavior and the magnitude of its impact. In terms of effective incentive design, in addition to introducing various devices and systems to the city, we will establish a system in which citizens obtain data on personal energy consumption and behavior to enable us to reduce carbon at the same time as ensuring the satisfaction of our citizens.

Subjects of the operational experiments

Photovoltaic generation, biomass, heat energy, CEMS, HEMS, EV/PHV/FC buses, ITS

Participating companies and organizations

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