Efforts to Expand Renewable Energy Efforts to Expand Renewable Energy ──── Challenges by Environmental Model City YokohamaChallenges by Environmental Model City Yokohama
Shuji Okazaki, Assistant Manager
Climate Change Policy Headquarters
Agenda
１ Introduction of the City of Yokohama
２ Measures to Expand Renewable Energy ２ Measures to Expand Renewable Energy
３ Yokohama Smart City Project (YSCP)
１ Introduction of the City of Yokohama
Overview of the City of Yokohama
Population 3.68 million （largest city in Japan）
Number of Households 1.59 million Participation
in Neighborhood
Percentage of participation 80%
Citizens with a High Level of Public Spirit
Neighborhood Associations
80% （second among major cities
in Japan）
Number of registered
NPOsApprox. 1,100
Environmental Model City Yokohama
Sakai
Shimokawa
Chiyoda Ward,
Kyoto ToyamaObihiro
Kitakyushu
Yuzuhara
Sakai
Miyakojima Toyota
IIda
Ward, Tokyo
YokohamaMinamata
Certified as an Environmental Model City by the Prime Minister
in July. 2008
Establishment of the New Midterm Four-Year Plan (2010～2013)
Yokohama G
rowth Strategy
Enforcement of Growth Industry ■Leading Eco-City Strategy
Introduce large quantities of renewables
Upwardly revised reduction targets of GHG To Reduce by 25 % by 2020 and 80% by 2050
Yokohama G
rowth Strategy
of Growth Industry
Assist Citizen to be Vibrant
Create Basis for Growth
■Leading Eco-City StrategyVitalization of Economy
Citizen’s Vitality
２ Measures to Expand Renewable Energy
Mobilizes various kinds of energy resources centered on solar energy① Most of the waste power generation and sewage biomass energy are already in use.
② The renewable energy with the highest potential for use in the city is solar energy.
＞ Ten-fold increase will be achieved by explosive expansion in solar energy
2500
）
explosive expansion
Importance of Solar Energy
Percentage of introduction of renewable energy（2004） ＜Source ：”Yokohama Energy Vision 2”（March 2008）＞
0
500
1000
1500
2000
太陽
光発
電
太陽
熱利
用
風力
発電
有機
廃棄
物発
電
有機
廃棄
物熱
利用
バイオ
マス
温度
差熱
利用
小水
力発
電
2004年
度導
入量
（TJ/年
）
explosive expansion
Subsidies for solar power and solar thermal systems in residences
Aims to introduce renewable energy in residences
◆Solar Power Generation System・In cooperation with Kanagawa Prefecture・40,000 yen /kW, maximum of 150,000 yen
・Number of planned total subsidies in 2010 2,000 （900 in ・Number of planned total subsidies in 2010 2,000 （900 in 2009）
◆Solar Thermal System・Original subsidy by the City of Yokohama・¥40,000 or ¥80,000 （depending on equipment）
・Number of planned total subsidies : 200
※energy use efficiency is 4 times that of solar power
Introduction of solar power generation in public facilities
1997～2008：installed at 30 schools in the city,
total generation of 291.25kW2009：installed 184 elementary and junior high schools,
total generation of 1,840kW
Other facilities :
・ward offices
Solar panels at ward office Public facilities“Mega Solar”
Monitor board
・ward offices・water treatmentplants
・welfare facilitiesetc.
Bio-diesel fuel produced by used cooking oil
Refines used cooking oil collected from elementary schools into BDF at private welfare facilities
Used as an alternative to heavy oil at Wastewater Treatment Plants ……Reduction of CO2
Integration of environment and welfare Integration of environment and welfare
３ Yokohama Smart City Project (YSCP)
YSCP Vision and ObjectivesYSCP aims to build the ”Next Generation Energy Infrastructure and Social System” that maximizes CO2 reduction in the forefront of innovation. .
Ambitious CO2 reduction target （64,000t-CO2 by 2014 ）
Export overseas as a city scale infrastructure package
Assemble Advanced Knowledge, Build in Yokohama, Expand Abroad
Increasing need for energy security
Economic development (green
Background YSCP Vision and Objectives
1313
・・・
Assemble Advanced Knowledge, Build in Yokohama, Expand Abroad
Expand Abroad
Build in YokohamaAssemble Advanced Knowledge
development (green innovation)
Cities as center of CO2 emissions
Environmental Model City
YSCP Overview
Minatomirai 21 area
Yokohama Green Valley area
Smart Buildings
SmartCardsEV Bus
PV System
Low-carbon apartment complex improvement model
Smart plant facilities
Amusement areasEV car share for tourismg
Industry area
Residential area
Heat Supply Plants
High-Rise apartment buildings
EV Car Sharefor business
Super Skyscraper Office Buildings
Smart Shopping Center
Low-Emission Housing ReformCondominiumsPark and Ride
CGS
Lifestyle Change
Steam network
1414
Project Members City of Yokohama, Accenture, Tokyo Gas, Tokyo Electric Power Company, Toshiba, Nissan, Panasonic, Meidensha, etc.
Project Areas Minatomirai 21Area, Kohoku New Town Area, Yokohama Green Valley Area, etc.
Area Statistics Population 420,000, Approx. 60k㎡
Vacant land
PV System
Smart City Management Center
Kouhoku New Town areaSmart Homes for Lot Sales
Central business district
Low-rise housing
Information Network
EV Car Share for Delivery
District Coolingand Heating
Heat water NW Solar thermal
Schedule of the YSCP Master Plan
Technologies almost at the level of practical use will be introduced to verify the technologies.
2010～2012：Small Start
Copyright © 2010 City of Yokohama
Services for the verified technologies will be introduced to verify their economic viability.
The established services will be introduced to verify their effects as a social system.
2013～2014：Expantion of the Scope
（参考）CEMSと連携するスマートハウスHighlight① Home Energy Management System
Residential PVSolar thermal, PV
Combined patterns of multiple equipments
Low-carbon reforming package
Home energyｰGW
16
系統創
家電蓄
制御
FULL ECOAUTO
系統創
家電蓄
制御
FULL ECOAUTO
系統創
家電蓄
制御
FULL ECOAUTO
系統創
家電蓄
制御
FULL ECOAUTO
Heat pump
Air conditionerWashing machineTV
Control panel
EVStorage battery
Fuel battery
Insulating material etc
Super-insulated house
Gas meter
Electric meterCharge/
discharge
Super-insulated buildings
Condominiums
Fuel battery
Heat pump
・ Introduces combined patterns of multiple PV and energy saving equipments to houses and buildings
・ Examines to minimize the costs by combining with reforming and expansion of efficiency by insulating materials
Low-carbon reforming package
Yokohama Green Power (YGP)Image
PV panel
Community Energy
Management System
Home Energy Management System (HEMS)
PV System
17
PCS
ITHome
Gateway
Internet
DistributionBoard
Electricity Measurement
UnitData store/Control of
home appliancesSelling Surplus Electricity
t System(CEMS)
Electricity Meter
Air ConditionerWashing
Machine
TV
Highlight② Community Energy Management SystemAbsorbs power output fluctuation from renewables by integrating stationary battery with HEMS and BEMS
Smart initiatives in three areas
Central Generation（Nuclear, Hydro）
Large Scale network Information Network
Energy Network
Kohoku New Town（Approx. 76,000 households）
District heating and cooling system
Smart buildings
1818
Achieves efficient energy management by managing both demand side and stationary energy storage
Minato Mirai 21(Approx. 3,600 households）
＋Integrated management of three areas with large scale network
Large scale renewables(Megasolar)
Smart house
Yokohama Green Valley（Approx. 87,000 households）
Charge stations
Electric Vehicles
（参考）クリーンエネルギーゼロエミッションモビリティHighlight③ Energy Management with Charge and Discharge Enabled EV
Car Share Management
Center
Charge & Discharge
Management EV Data Center
Increase usage of solar power and lower EV CO2 footprint by developing Charge and Discharge enabled EVs that can be leveraged as clean energy storage in the three areas
19
CenterManagement EV Data Center
EV Car Share and charge
Stationary Battery
Charge & Discharge
Charge
Maintains EV user satisfaction and minimize societal cost
Thank you very much
