smart city with some case studies

3. A smart city uses digital technologies or information and
communication technologies (ICT) :
To Enhance Quality And Performance Of Urban Services
 To Reduce Costs And Resource Consumption
To Engage More Effectively And Actively With Its Citizens.

4. The
Smart
City
Digital Client
Digital
Community
Digital Citizen
Inclusive Digital
City
Visitor of Digital
City
Digital City &
Representatives
Technological &
Organizational
Preconditions
Digital City
Economy
Innovative and
Experimenting
Sustainability

5.  Growing Population
 Traffic Congestion
 Space – Homes and Public Spaces
 Resource Management
 Global Warming
 Tighter City Budgets
 Aging Infrastructure

6.  Adequate Water Supply
 Assured Electricity Supply
 Sanitation, Including Solid Waste Management
 Efficient Urban Mobility And Public Transport
 Affordable Housing, Especially For The Poor
 Robust IT Connectivity And Digitalization
 Good Governance, Especially E-governance
 Sustainable Environment
 Safety And Security Of Citizens
 Health And Education.

7.  City improvement (RETROFITTING)
 City renewal (REDEVELOPMENT)
 City extension (GREENFIELD DEVELOPMENT)
 Pan-city initiative in which smart solutions are
applied covering larger parts of the city.

8. SMART
CITY
RETROFITTING
REDEVELOPMENT
GREENFIELD
DEVELOPMENT

10. Kashiwa-no-ha Smart City is a collaboration between government agencies, universities, research
institutions, Mitsui Fudosan Co. Ltd., Hitachi Ltd., and other entities that connects public enterprises, private
enterprises, and universities to work towards three ideals:
• an environmental-symbiotic city,
• a city of health and longevity, and
• a city of new industry creation.
KASHIWA-NO-HA SMART CITY
The project aims to greatly reduce CO2 emissions through
duplication of energy-transmission lines, thorough usage of
unused energy, and more efficient operations. Furthermore, the
project aims to construct electrical networks that incorporate
smart-grid functionality across the entire region sometime in the
future.
The purpose is to create a new "Area Energy Management
System" (AEMS) that, at its core, optimizes levels of regional
energy use such as production, receipt, and consumption of
electricity, and then to expand its area and level of functionality.

11. Overview of Area Energy
Management System(AEMS) in
Kashiwa-no-ha Smart City
AEMS consists of efforts under the theme "saving,
creating and storing energies" with the goal of
optimization of use and regional interchange of energy,
while preserving Kashiwa-no-ha's rich, unique natural
environment and traditions.
AEMS aims for integrated energy management—not
simply the management and effective use of electricity
within the region, but by harnessing the "community"
and "health" of the region as a form of "energy".
Kashiwa-no-ha Smart City: An advanced,
world-leading problem-solving model
Overview of Area Energy Management System(AEMS)

12. Features of Area Energy
Management System(AEMS) in
Kashiwa-no-ha Smart City

13. STRUCTURE OF AREA ENERGY MANAGEMENT SYSTEMS
AEMS realizes the consolidated
management of, prediction of
demand for, and provision of
supply-and-demand
information about energy. It
does so by enabling the
visualization of energy (not only
electricity, but also water, gas,
and so on) and through the
control and analysis of the
supply and demand of energy
information across the entire
region. To accomplish this,
AEMS depends on information
from the HEMS, BEMS,
and central-management systems that are installed in offices, shopping centers, residences, public facilities, and so
on.
Moreover, the distributed power facilities that have storage-battery systems as their core are vital facilities for
ensuring stable operation when the electrical grid is linked with renewable energy sources, such as solar power or
wind power. By managing and linking these, the flexible interchange of electrical energy within the region becomes
possible. Energy conservation creates a link between the infrastructure In a region and the lives of the people In
that region. Energy creation and storage is accomplished through new infrastructure. Kashiwa-no-ha Smart City's
Area Energy Management System connects these by using advanced systems to their fullest potential.

14. AREA ENERGY MANAGEMENT SOLUTION
Hitachi supports area energy management
solutions that are designed for urban
development. These solutions are constructed
from area energy-management systems that
operate, monitor, and control energy across an
entire district, and from distributed power
facilities such as storage-battery systems, electrical
interchange facilities, and electrical substations.
The Smart Center is the core of the "Smart Grid Model for
Electrical Grid Cooperation", which passes electricity back and
forth between buildings that experience differing peaks in
electricity consumption. Another role of the Smart Center is the
consolidation of regional disaster-prevention management with
regional energy operations. In normal times, it aims to source
electricity from multiple sources, such as the electrical grid, gas,
and renewable energy. In times of blackout, it is able to provide
a level of electricity supply that can sustain households.
SMART CENTER (AEMS)

15. ROLE OF THE SMART CENTER
The Smart Center, which manages the energy of a region, has three major roles.
• It lays electrical network lines and performs regional energy management,
• in normal times, enables the sharing and visualization of energy information about, and
• the interoperation of electricity between, buildings in the same block.
Also, when blackouts occur, it supports a safe and comfortable living environment through the interchange of
electricity.

16. Through the effective use of energy conservation, generation and storage within the "town" area, we are work is
underway towards the construction of an area management system. In addition, three objectives have been
established for continued operation of the town in times of disaster:
• Activity navigation,
• Electrical interchange, and
• BCP/LCP measures.
Hitachi contributes to an eco-friendly, secure, and comfortable smart city through the fusion of the following two
information technologies:
• An "information system" that is useful for a secure and comfortable lifestyle, and
• A "control system" that efficiently and safely engages social infrastructure.
TOWARDS A MORE COMFORTABLE, SECURE & CONVENIENT TOWN
The three "values“ provided by the Area Energy Management System (AEMS)

18. Yokohama, a city of 3.7 million, is highly regarded
as a city that values both the environment and the
economy. In Yokohama, public and private
enterprises work together to leverage Yokohama's
strengths towards the resolution of various urban
problems in developing countries, the realization
of a low-carbon society, and the realization of a
society of sustainable mobility.
YOKOHOMA CITY
In January 2011, as part of the Yokohama strategic growth plan, Yokohama
City announced the "Yokohama City Mid-Term 4 Year Plan", and is now
proceeding with the "Strategy for the Expansion of International Business".
The concept of "international technical cooperation through public-private
partnerships that make use of Yokohama's resources and skills" was given
the name "Y-PORT Project". In particular, this project aims to help solve
problems that cities in developing countries are facing (social responsibility)
and to spur economic activity within Yokohama City (economic strategy) by
fostering corporate partnerships. On July 31, 2013, Hitachi and Yokohama
City concluded the "Comprehensive Partnership Agreement on International
Technological Cooperation and Contribution to Regional Socioeconomic
Activities", which aims to support for economic development in Yokohama
as well as the development of Yokohama as an international city.
Y-PORT Project
(Yokohoma Partnership Of Resources & Technologies )

19. YOKOHOMA SMART CITY PROJECT
The Yokohama Smart City Project is a five-year-long field test that began when Yokohama City was designated as a
"Next-Generation Energy and Social systems Demonstration Areas" by the Ministry of Economy, Trade and Industry
in April, 2010. Through the use of renewable energy, such as solar power, Yokohama City is taking steps to create a
new social system that has the goal of reducing carbon dioxide emissions by 30 percent.
"Energy Management System Using Chargeable and
Dischargeable EV
*1
(EV-EMS)" combines renewable energy,
EV batteries, and stationary electrical energy storage. As
well as its goal of being an eco-friendly charging system
that makes effective use of renewable energy, the EV-EMS
partners aim to implement the system in communities as a
part of the energy-storage infrastructure.
The EV-EMS partners are linking this system with the area
Energy Management System (EMS) that encompasses the
entire community. Through this, they are verifying how
effective it is to implement the batteries mounted in EVs
that are connected to eco-friendly charging stations, as
well as fixed storage batteries, to optimize the use of
energy across the entire community.*1 EV = ELECTRIC VEHICLE

20. Hitachi's eco charging system carries out charging of EVs while considering the load on the electrical grid, by making
effective use of renewable energy and electrical-storage batteries, and controlling peaks in electrical demand
caused by widespread charging.
However, the convenience of users is still the main priority of the system. The electrical storage batteries used are a
hybrid of lithium-ion and lead-acid batteries. The characteristics of each type are used in tandem, partly to put large
amounts of electricity to efficient use, and the batteries store electricity without first converting it from the DC that
is generated by solar panels, which minimizes loss. These batteries help in the pursuit of improvements in the use
of renewable energy.
EV-EMS

21. YOKOHOMA MOBILITY “PROJECT ZERO” (YMPZ)
Yokohama Mobility "Project Zero" (YMPZ), led by Yokohama City and Nissan Motor Co.
Ltd., aims to bring about a low-carbon, high-mobility society through the cooperation of
public enterprise, private enterprise, and government.
As part of this demonstration test, Hitachi is providing the IT platform that forms the
nucleus of the "Choi-Mobi Yokohama" car-sharing system. Choi-Mobi Yokohama, which
starts on October 11, 2013, is a one-way car-sharing system*2 that uses the Nissan New
Mobility CONCEPT, a 100%-electric vehicle.
Choi-Mobi Yokohama is the country's first one-way car-sharing project to offer ultra-
light mobility on the scale of 100 vehicles.
*2- "One-way car sharing": A car-sharing system that allows the user to rent a car from one location
and return it to a different location.
Choi-Mobi Yokohama, a one-year trial that
forms part of Yokohama Mobility "Project Zero",
has three goals:
• the promotion of low-carbon transport,
• an increase in quality in city life and
mobility, and
• the promotion of tourism.
Users are able to rent vehicles from any one of
the roughly 70 service locations established in
the Yokohama City area, and return the vehicles
to the same or a different service location. In
addition, once prospective users have
registered for the service via (for Eg.) the Choi-
Mobi Yokohama Web site, they are able to
reserve a vehicle from smartphones or mobile
devices as well as from PCs.

22. In addition to enabling real-time management of the shared vehicles and parking lots, the IT platform provides
users with the ability to reserve vehicles via smartphones and other mobile devices. Moreover, since the shared
vehicles are equipped with systems that monitor attributes such as the distance travelled, the remaining battery
charge, and any brake warnings, the vehicle managers can appropriately service the vehicles regardless of the
vehicles busy schedules. Thanks to this functionality of the IT platform, users of Choi-Mobi Yokohama enjoy a high
level of convenience in being able to rent a vehicle when they need to, for only the time they need, and with the
option to drop it off at their destination.
Image of IT Platform for Car Sharing