Hydrogen Economy for Hydrogen Economy for Low Carbon SocietyLow Carbon Society

Technology Development Division,gy p

Tokyo Gas Co., Ltd.13-14 Feb, 200813 14 Feb, 2008

Outline of Tokyo GasOutline of Tokyo GasOutline of Tokyo GasOutline 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

CO2 Emission from City gas (FY 2006)

All Japan Tokyo Gas

(unit: million)

City Gas Sales(unit: billion m3, 42MJ/m3) 33.8 13.1

City gas Production 0.071 0.014

City gas User 70 30

unit:million t-CO2Gas Pipeline Length(unit: thousand km) 232.3 51.6

unit:million t-CO2

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

Suburb： Various Renewable Energy Area

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

BiomassBiomass PV

Advanced LowCarbon City FC

CCS

Nuclear Power Generation

PV

Wind

ＬＮＧ

Heat

FCFC

FCFC

FCFC

FCFC

PV

PV

PV

FCFC

FCFC

FCFC

FCFC

FCFC

H2

H2 from Biomass

BatteryPower FCFC

FCFC

PV

Sustainable Low Carbon SocietyLocal H2 Network

FCFC

Thermal Power Generation

H2 fueling ST

FCVCCS

Steam Network

CCS with EOR

FCFC

FCFC

FCFC

FCFC

FCFC

Domestic Gas Field

Fire Station

School

Natural Gas NetworkEnergy Center

Natural Gas Storage

Electricity NetworkCity： LCS & Energy Security Area

Energy Storage for Emergency

Natural Gas Network

Hospital

Compact City

Station

Transition to Low Carbon SocietyTransition to Low Carbon Society

LongｰtermMid-termShortｰterm

１．Energy saving and switching to low carbon fuels

２ High efficient equipment for energy supply & consumption on

２．High efficient equipment for energy supply & consumption

３．Maximizing the usage of renewable

４ D l t f t k i iti ion

redu

ctio

５．Realization of H2 economy

４．Development of energy network in cities

CO

2 em

iss

y Csi

on

2010 2020 2030 2040 2050

CO

2 em

iss

2010 2020 2030 2040 2050

High efficient equipment for energy supply High efficient equipment for energy supply

ShortShort--term solution = FCterm solution = FCJapan is using FC for

Residential CHPIncrease of FC’s

Electric Efficiency

PEFC SOFCElectric efficiency ３７％ＣＯ２ reduction ４５％

（ＬＨＶ）Prime Minister’s Residential Area（April 8 2005）

Residential ４５％Industrial ６７％

（Combined Cycle System）（April 8, 2005）

（ＬＨＶ）y y

Grid PowerAverage 41%

“Large-Scale Stationary Fuel Cell Demonstration Project” （05 08）

“SOFC Demonstration Project” （07～）

Average 41%Highest 54% (LHV)

Demonstration Project” （05～08）・FY05:480units FY06:777units FY07:930units

Energy Network for Maximize Renewable UsageEnergy Network for Maximize Renewable Usage

MidMid--termterm solution = biomass & microgridsolution = biomass & microgridCirculatingCirculatingCirculating HeatCirculatingCirculatingCirculating Heat

Sewage Sludge

Circulating Fluidized

Bed Gasifier

Heat recovery

boiler Gas purification

unit

City gas

Gas engine

Dryer

Sewage Sludge

Circulating Fluidized

Bed Gasifier

Heat recovery

boiler Gas purification

unit

City gas

Gas engine

Dryer

Gasifi ti

City gasGas engine

Dryer

Sewage Sludge

P ti

Circulatingfluidized

bed gasifier

Heatrecovery

boilerSewage Sludge

Circulating Fluidized

Bed Gasifier

Heat recovery

boiler Gas purification

unit

City gas

Gas engine

Dryer

Sewage Sludge

Circulating Fluidized

Bed Gasifier

Heat recovery

boiler Gas purification

unit

City gas

Gas engine

Dryer

Gasifi ti

City gasGas engine

Dryer

Sewage Sludge

P ti

Circulatingfluidized

bed gasifier

Heatrecovery

boilerPower Generation by CHPSmoothly ControlledPower Generation Power Generation

by renewable

Electric Demand

Power GenerationWaste heat

recovery boiler

Steam

Power GenerationWaste heat

recovery boiler

Steam

purificationunit

Waste heatRecovery boilerSteam

Power generationPower GenerationWaste heat

recovery boiler

Steam

Power GenerationWaste heat

recovery boiler

Steam

purificationunit

Waste heatRecovery boilerSteam

Power generation

Load leveling for Grid Power

Micro GridMicro Grid

Wind

Power

Thermochemical Gasification(Sewage Sludge Biomass)

G E i

Fluctuation of Renewable Energy

BestMixBestMix Fermentation

(CH4 / H2 / EtOH) Gas EngineGas Turbine ＋BatteryFuel Cell

SolarDHC / CHP Grid

Power

Grid

H2 fueling for Low Carbon SocietyH2 fueling for Low Carbon Society

UsingUsing H2 for fuel, there are no CO2 in the exhaust !H2 for fuel, there are no CO2 in the exhaust !

Hydrogen Fueling Station for FCV

H2 Production：５０ Nm3/hH2 Production：５０ Nm3/h

Local H2 Economy with Distributed CCSLocal H2 Economy with Distributed CCS

LongLong--termterm solution = H2 Economysolution = H2 Economy

Large scale H2 Production Key Issues

NG

LNG

FC

H2 Production・Roll-out of H2-FCV

・Investment on H2

O it H2 P d ti

FCEV FCEV

H2 StationNG

FC

FC infrastructure

・CO2 management( CCS)

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Onsite H2 Production

FCFC

CO2 (including CCS)

NG

FCFC

FCFC

FCFC

FCFC

H2 Pipeline

CO2 Capture

CO2CO2