National University Corporation, Dep. Electrical and Electronic Engineering,

Power Engineering Lab., Kitami Institute of Technology

Developments of Developments of a Fuel Cell a Fuel Cell Micro-Grid TechnologyMicro-Grid Technology

9th International Symposium on Advances in Electrochemical Science

and Technology (Chennai, India)

December 3, 2010.

Dr. Shin’ya ObaraDepartment of Electrical and Electronic Engineering

Power Engineering LaboratoryKitami Institute of Technology, Japan

9th International Symposium on Advances in Electrochemical Science and Technology (Chennai, India)

National University Corporation, Dep. Electrical and Electronic Engineering,

Power Engineering Lab., Kitami Institute of Technology

Capacity and EfficiencyCapacity and Efficiency of the Power Systemof the Power System

9th International Symposium on Advances in Electrochemical Science and Technology (Chennai, India)

2

Power capacity [kW]

Pow

er g

ener

atio

n ef

fici

ency

[%

]

100,00010,0001,0001001010.120

40

60

70

50

30

SOFC

SOFC+MCFC

Gas turbine

Gas engine

MGT

PEFCThermal power

generationSteam turbine

Steam turbine + gas turbine

Microgrid with ten to hundred houses

MCFC

The evidence examination of SOFC for stationing is started from 2007. Microgrid is expected as a next-generation distributed power source.

MCFC ： Molten carbonate fuel cell PEFC ： Proton-exchange membrane fuel cellSOFC ： Solid-oxide fuel cell MGT : Micro gas turbine

National University Corporation, Dep. Electrical and Electronic Engineering,

Power Engineering Lab., Kitami Institute of Technology

Outline of Home Cogeneration Outline of Home Cogeneration Using a Small-Scale PEFC in JapanUsing a Small-Scale PEFC in Japan

9th International Symposium on Advances in Electrochemical Science and Technology (Chennai, India) 3

Produce: Japanese gas companies and oil company (from 2009)

System: PEFC, Two-line use with commercial electric power

Electric power: 300 ~ 1000 W

Fuel: Natural gas or LPG (liquefied petroleum gas)

Price: 3.5 million JPY (42 thousand USD, 2 million INR) 1.4 million (40%) is supported by Japanese government.

Average total efficiency: 70 ~ 80 % (cogeneration)

Cost efficiency: Energy cost reduction per year 40 ~ 50 thousand JPY

Drastic reduction of prices, or reduction of the recovery year of facility cost

Drastic reduction of prices, or reduction of the recovery year of facility cost

is required for the spread of home fuel cell.

Energy farm=ENE ･ FARM