Hydrogen Economy for
Low Carbon Society

Technologygy Development
pDivision,

Tokyo Gas Co., Ltd.
13-14
1314 Feb, 2008

Outline of Tokyo Gas

Tokyo Gas service area
CO2 Emission from City gas (FY 2006)

Gas Facts in Japan & Tokyo (FY 2006)
All Japan

Tokyo Gas

Number of Customers(unit: million)

28.1

10.0

City Gas Sales(unit: billion m3, 42MJ/m3)

33.8

13.1

Gas Pipeline Length(unit: thousand km)

All Japan

Tokyo Gas

City gas Production

0.071

0.014

City gas User

7030
unit:million t-CO2

232.3

51.6

CO2 Emission from Japan : 1,275 milion t-CO2

TEAM ENERGY : Energy System in 2030
Suburb： Various Renewable Energy Area
Biomass

PV

Biomass

FC

Wind
Power

NuclearPower
Generation

FC
FC

CCS

FC
FC

Heat
PV

ＬＮＧ

PV

PV

Advanced Low
Carbon City

PV

FC
FC
FC
FC

H2

FC
FC

Battery

FC
FC

FC

FC
FC

FC

FC
FC

H2 from Biomass

FC
FC
FC
FC

H2 fueling ST

FCVLocal H2
Network

Thermal Power
Generation

Sustainable Low Carbon Society

CCS

Fire Station

FC
FC
FC
FC
FC
FC

Steam
Network

CCS with
EOR

Domestic
Gas Field

FC
FC
FC
FC

SchoolNatural Gas
Storage
Energy Center
EnergyStorage for
Emergency

Natural Gas Network
Hospital

City： LCS & Energy Security Area
Compact CityStationElectricity Network

Transition to Low Carbon Society
Shortｰterm

Longｰterm

Mid-term

２ High efficient equipment for energy supply & consumption
２．High
３．Maximizing the usage of renewable
４ D
４．Development
lt off energy network
tk ini cities
iti

CO2emisssion

５．Realization of H2 economyy

CO2 emission reductio
Con

１．Energy saving and switching to low carbon fuels

2010

2020

2030

2040

2050

High efficient equipment for energy supply

Short--term solution = FC
Short
Japan is using FC forResidential CHP

Increase of FC’s
Electric Efficiency

PEFCSOFCElectric efficiency ３７％Residential ４５％
Industrial ６７％

ＣＯ２ reduction ４５％
Prime Minister’s Residential Area
（April 8,8 2005）（ＬＨＶ）（Combined CycleySystem）
y（ＬＨＶ）
Grid Power
Average 41%
Highest 54% (LHV)“Large-Scale Stationary Fuel Cell
Demonstration Project” （05～08）（05 08）・FY05:480units FY06:777units FY07:930units“SOFC Demonstration Project” （07～）

Energy Network for Maximize Renewable Usage

Mid--term solution = biomass & microgrid
Mid
Power Generation
by CHP

Smoothly Controlled
Power Generation

Sewage Sludge

Power Generation
by renewable

Circulating
Circulating
Heat
Fluidized
Heat
fluidizedrecovery
BedCity gas
Citygasrecovery
GasGasifierboiler
bed gasifier
boiler purification
unit

Sewage Sludge

Electric DemandGas engine

Gas engine

DryerDryer

Gaspurification
ifi tiunit
Load leveling for
Grid Power

SteamSteamP
PowergenerationtiPower Generation
Waste heatrecovery
Waste heatboilerRecovery boiler

WindPower
Micro Grid
Fluctuation ofRenewable Energy

BestMix

Thermochemical Gasification(Sewage Sludge Biomass)

Gas Engine
G
E i
Gas Turbine ＋Battery
Fuel Cell

DHC / CHP

Solar

GridPowerFermentation(CH4 / H2 / EtOH)

H2 fueling for Low Carbon Society
Using H2 for fuel, there are no CO2 in the exhaust !

Hydrogen Fueling Station for FCV

H2 Production：５０ Nm3/h

Local H2 Economy with Distributed CCS
Long--term solution = H2 Economy
LongLarge scale H2 Production

Key Issues

・Roll-out of H2-FCVNG
H2 Production

LNG

・Investment on H2FC

FC

infrastructure

H2 StationNG

FCEV

O it H2 POnsite
Productiond ti

FCEV((includingCCS)

CO2

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FCFCFCFC

H2 PipelineFC
FC
FC
FC

NG

FC
FC

CO2・CO2 management

CO2 Capture