small hydropower - 新炭素資源学 - 九州大学グローバ...
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Small HydropowerKOBAYASHI, Hisashi
(School of Agriculture, IBARAKI University)
• Environment and circumstances relative to ll h d
( g , y)
small hydropower• Hydropower developmenty p p• Today’s Hydropower in Japan
-Changing from Large & Medium HP to Small HP • Potential of small hydropower development• Merits of small hydropower generationM r ts f sma hy r p w r g n rat n• Effects of small hydropower development • About J-WatER• About J-WatER
1
Energy flow and renewable energy
340W100W240WY (1024)J/yr
340W1.4
1.63.8 5.4
2.72.9
78W0.31.3
<0.01Wreflection
0.2
78W
1 36 3heating
0.4 2.5GH effect
ET5.4
170W
1.36.3 2.5
170W
PV:×10%=300 000 EJ/yrbiomass:×0.15%=4,000 EJ/yr oil :0.001~0.002
coal:0 2~0 3
Thomas G. & William M. S.(1996)2Chemistry of the Environment”
PV:×10%=300,000 EJ/yr coal:0.2~0.3
Total primary energy:400 EJ/yr= 4×1020J/yr=0.00042
1800 Volta, a battery1801 F d t
Opening ofthe Century of Petroleum1801 Faraday, a motor
1832 H. Pixii, an electric generator1853 Perry, Ship flying UA flags1859 A gasoline engine (J-J É Lenoir)
y
1859 A gasoline engine (J-J. É. Lenoir)Oil deposit in Pennsylvania (Colonel Drake)
1863 Standard Oil Company
Peak Oil
1867 Maiji-era1870 Gramme electric generator1873 Davidson, EV1878 1st HPPs in the World(Paris, sugar manufactory)1879 Edison, T. A, electric bulb1882 1st HP generation in Japan(Satsuma Shimazu)1883 Daimler Gasoline engine for vehicle
Toshiba
1883 Daimler, Gasoline engine for vehicle1886 「Tokyo Dento」established(1886)1887 A start of electric power supply(1888=138 lights, 1902=60,000lights)1888 1st HPPs in Japan(Mitsuizawa DC 5kW spinning mill)1888 1st HPPs in Japan(Mitsuizawa, DC 5kW, spinning mill)1892 Keage HPPs in Kyoto(power supply business )1894 Shino-Japan War1896 H. Ford, gasoline-engine car, g g1899 11kV long distance transmission1904 Russia-Japan War1906 Toyota, Sakichi, [Toyota Weaving-machine]1 h h PP (1 ) k l d 1907 Komahashi HPPs(15MW), 55kV long distance transmission1908 Ford Model T, GM established
3
Environment and circumstances relative to Environment and circumstances relative to small hydropower
4
Annual Precipitation of Japan
Patterns are similarto Asian Monsoon Region
(出典:国土地理院 新版日本国勢地図)5
River Systemof Japan
Dense and steep waterDense and steep water courses
6
TopographyLandform %L fl t 16%
opog ap yFew low‐flat land
Low-flat 16%Flat to gentle inclined land 11%
Hill hillocks 12%Many steep uplift lands
Hill, hillocks 12%Mountainous 61%
Cropping Area (1,000ha)Wet land D l d year Total Wet-land farming
Dry-land farming
2003 5 243 2 846 2 3972003 5,243 2,846 2,3972004 5,038 2,745 2,2932005 4 830 2 641 2 1892005 4,830 2,641 2,1892006 4,692 2,556 2,1362007 4 671 2 543 2 1282007 4,671 2,543 2,1282008 4,650 2,530 2,120 7
Water DistributionWater Distribution SystemSystem
Irrigation systemg y
Widely spread Irrigation canals
main canal :40,000 kmtotal canal length :400,000 km
River system
8
Hydropower development
9
Hydropower played a great role in old days’ JapanHydropower played a great role in old days Japan
• Water-lifting for agricultural use for paddyWater lifting for agricultural use, for paddy an upland crops
i• Transportation– manpower, animal power, river flow, wind‐p ppower
• Rice millingRice milling– manpower, animal power →small hydropower i bin urban area
• Industrial energy(sawing, crushing, grinding, cutting etc.)manpower, animal power → small hydropower → (steam)
• Heat & cooking energyg gy– biomass 10
sakerapeseed
oilnoodleflour incense
NADA(灘)Regulation on rice yield fluctuation(150kg(石)/10a[反])
天明8年米踏水車の位置図(神戸大架蔵御影村文書による)
Ashiya-shi(2006)
天明8年米踏水車の位置図(神戸大架蔵御影村文書による)
11
Change in Energy CompositionModernization and energyM bi
hange in Energy omposition
Manpower, biomass→ hydropower, coal then petroleum
Energy changesBi i 80%
100%
Biomass energy society came to an end.
H d d l t60%
80%
Hydropower development for the promotion of industry and rural 20%
40%
industry and rural electrification
Thermal power0%
1880 1906 1926 1946 1966 1986 2006Thermal power development Woods Coal Oil Gas Hydro Nuclear Others
12
Examples of hydropower installation at initial stage
District Power Installation PresentHokkaido 120kW 1906 disuseHokkaido 120kW 1906 disuseTohoku 5kW 1888 operation:1000kWTokyo 17kW 1890 disuseChubu 50kW 1897 operation:130kW
Hokuriku 5kW 1894 operation:240kWKansai 80kW×2 1891 operation:4500kWKansai 80kW×2 1891 operation:4500kW
Chugoku 750kW 1899 disuseShikoku 260kW 1903 operation:3400kWKyushu 60kW 1898 operation:240kW
source:JEPOC(1992)
13
H d El t i it P d tiHydropower Electricity Production
300
h)h)
250
llion
kWh
S k D
Kuro‐Yon Dam
Okutadami Dam
illio
n kW
h
150
200
sump. (bi Sakuma Dam
duct
ion(
bi
100
150
ergy Con
s
Oi D
Komaki Dam
Prod
50
mary Ene
KinugawaHydropower
Oi Dam
0
1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000
Prim
14
Progress of primary energy supply
5 0 0 ,0 0 0
6 0 0 ,0 0 0
3 0 0 0 0 0
4 0 0 ,0 0 0
2 0 0 ,0 0 0
3 0 0 ,0 0 0
0
1 0 0 ,0 0 0
T kcal1 8 8 0 1 9 0 0 1 9 2 0 1 9 4 0 1 9 6 0 1 9 8 0 2 0 0 0
薪 炭 石 炭 石 油 天 然 ガ ス 水 力 原 子 力 そ の 他Biomass Coal Oil LNG Hydro Nuclear Others
15
Small Hydropower development afterSmall Hydropower development after 1940 in Japan
1942around 78,000 water wheels for agricultural
activities( ex. threshing)a ( . g)
1952-1960s1952 1960saround 200 small hydro-power stations were
constructedconstructed.
1982-1982some 10 powerstations were constructed
16
Today’s Hydropower in JapanChanging from Large & Medium HP to Small HP
17
Ch i t S ll HPChanging to Small HP
■ Development of Large & Medium HP is in deadlock due to environmental reason etc.
■ SHP is come into spotlight as a solution of CO2 emission and energy problemsemission and energy problems
■ In 2003, SHP up to 1,000kW was certified as the N E t d b th RPS LNew Energy enacted by the RPS Law
■ In 2008, SHP up to 1,000kW was categorized into the New Energy enacted by the New Energy Law
■ With this situation, the number of SHPPs have been ,increasing year after year
18
Expectation on Renewable Electricityp ysuch as PV, Wind power, Biomass,
and Small hydropowerand Small-hydropower
Medium ScaleLarge ScaleDevelopment
Medium ScaleDevelopment
250
300
n kWh) National
MobilizationPresent:90 billion kWh
200
ump. (billio
R k t
100
150
nergy Co
nsu Remark to
RenewableEnergy
0
50
Prim
ary E
n gy
0
1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 200019
Introduction of Recent InstillationsJ-WatER
~SHP Projects adopted to NEDO’s subsidy from FY2004 to FY2008~
(1) River■ 7 SHPPs were installed.
~SHP Projects adopted to NEDO s subsidy from FY2004 to FY2008~
■ Owner of 4 SHPPs of them were Power companies.
Kachugawa Citizen SHPP of Turu City(Locally Designated River:
Arashiyama Hosyoukai SHPP in Kyoto(Class A River: Katsuragawa River)(Locally Designated River:
Kacyugawa River)Head:2m、Discharge:2m3/s
(Class A River: Katsuragawa River)Head:1.74m、Discharge:0.55m3/s
Output:5.5kWgOutput:20kW
In service: October 2005In Service: December, 2005
(2) Maintainance Flow Discharge■ 4 SHPPs were installed.
Azuma No.2 SHPP of Public Sector of Gunma Pref.
(Discharge from Kusaki Dam)
Koami No2 SHPPof Public Sector of Tochigi Pref.
(Discharge from Koami Dam)(Discharge from Kusaki Dam)Discharge:0.329m3/s、Output:230kW
In Service: October, 2006
(Discharge from Koami Dam)Discharge:1.31m3/s、Output:130kW
In Service: December, 2007
Source:Website of Gunma Pref. Source: Website of Tochigi Pref.20
J-WatER
(3)Sabo-dam■ 4 SHPPs were installed.
Asakari-dam SHPP of Oooka-cyoin Nagano Pref.
Head:13 7m Discharge:0 08m3/s
Seiwamura SHPP in Kumamoto Pref.
Head:14 38m Discharge:2 0m3/sHead:13.7m、Discharge:0.08m3/sOutput: 6.7kW
In Service: March, 2008
Head:14.38m、Discharge:2.0m3/sOutput:190kW
In Service: April, 2005Source: Website of NEF
(4)Drinking Water System(4)Drinking Water System
Ko hok SHPP Tera chi Hais ij o SHPP
■ 34 SHPPs were installed.
Kouhoku SHPP of Yokohama Waterworks BureauHead:29.8m、Discharge:1.35m3/s
Terauchi Haisuijyo SHPPof Toyonaka City in Osaka
Head:35m、Discharge:0.48m3/sgOutput:300kW
In Service: March, 2008
gOutput:129kW
In Service: February, 2007
Source:Website of KEPCOSource: Tokyo Hatsuden21
(5) Irrigation Canal
J-WatER
(5) Irrigation Canal
Murayama rokkason zeki SHPP Hikinuma No 2 SHPP
■ 7 SHPPs were installed.
Murayama-rokkason-zeki SHPPof Hokuto City in Yamanashi Pref.
Hikinuma No.2 SHPPof Nasunogahara Irrigation
OrganizationH d 15 51 Di h 1 6 3/Head:77.5m、Discharge:0.5m3/s
Output:320kWIn Service: March, 2007
Head:15.51m、Discharge:1.6m3/sOutput: 170kW
In Service: February 2009
(6) Discharge from E isting Po erStation(6) Discharge from Existing PowerStation■ 6 SHPPs were installed.
Shirakawa-mura SHPPof Sirakawa-mura in Gifu pref.H d 8 0 Di h 2 3 3/
Mibugawa No.4 SHPPof Mibugawa Power Company
H d 10 49 Di h 6 6 3/Head:8.0m、Discharge:2.3m3/sOutput:150kW
In Service: July, 2005
Head:10.49m、Discharge:6.6m3/sOutput:480kW (6 Units)
In Service: February, 2009y y
22
Micro Hydro Generating Unit utilized the l i t l isurplus pressure in water-supply pipe
Net Head : 10 (m)Net Head : 10 (m)Design Flow : 1.11(m3/s)Max. Output : 90(kW)Expected Annual Output :Expected Annual Output :
343,000(kWh)
23
Micro Hydropower Unit Micro Hydropower Unit in Kawasaki Water Works
Plant Name Egasaki Saginuma
Turbine TypeHorizontal Shaft ,
Propeller
d ( ) 36 09 3Max. Net Head (m) 36.09 13.5
Design Flow (m3/s) 0.6 0.53~0.98
M O t t (kW) 170 90Max. Output (kW) 170 90
Annual Output (kWh) 540,000 530,000
Unit No 2 1Unit No. 2 1
EgasakiEgasaki PlantPlant SaginumaSaginuma PlantPlant 24
Micro Hydro Unit in Sewage Water Treatment Center
Morigasaki Water Reclamation Center
Outlet with Micro-hydro power generators installed. Hg=2.0(m), Q=0.3(m3/s), P=4(kW)
Flow : 0.34~0.93(m3/s)
Kasai Water Reclamation Center( )
Head : 5.05(m)Unit Max. Output : 37(kW) Average Output : 11(kW)Turbine Type : Variable Blade type TubularGenerator Type : 3 Phase Induction GeneratorVoltage : 400(V)
(Source) Bureau of Sewerage Tokyo Metropolitan Government
Power Factor : 0.8225
Mini Hydro Power StationMini Hydro Power Station
--Utilizing Compensation Flow to the RiverUtilizing Compensation Flow to the River
yy
General Arrangement (Sectional View)26
S type Propeller Turbine Generator(All Actuators are operated by Electric Motor)(All Actuators are operated by Electric Motor)
Turbine Type : S type Tubular Turbinewith Speed Increaser
Net Head : 5.45(m)( )Turbine Flow : 15.0(m3/s)Turbine Output : 694(kW)Turbine Speed : 200(rpm)
TurbineTurbine
Turbine Speed : 200(rpm)Generator Type : Synchronous
Generator with AVRCapacity : 670(KVA)
Speed IncreaserSpeed Increaser
Capacity : 670(KVA)Speed : 900(rpm)
GeneratorGenerator
Electric Motor Driven Electric Motor Driven Actuator for Runner BladesActuator for Runner BladesActuator for Runner BladesActuator for Runner Blades
27
J-WatER
(7)Installation Site
■ D i ki W t S t t f 50%
~from FY2004 to FY2008~
■ Drinking Water System accounts for 50% ■ Sewage System accounts for 0%
2 9 1.5
3435
40
件数ro
ject 10.3
5.9 8.8
2.9 4.4
25
30
数
ber o
f P 5.9 10.3
15
20
Num
b
50.0
0.0
7
4 4
7 6
2 35
10
02 1
3
0
5
28
Potential of Hydropower development
29
Present Situation of Hydropower Generationy pin Japan
30,000
20 000
25,000
15,000
20,000
Output of power(GW)
10,000 Annual production(10^8kWh)
0
5,000
0
Under operation & construction
Undeveloped
30
Hydropower Potential in JapanCl ifi d b O t tClassified by Output
(Source)NEF “Small-Micro Hydro Facilitation & Innovative Technologies in Japan (Aug., ‘06)31
Sampling Study on under 1000kW output hydropower potentialon under 1000kW output hydropower potential
Locations
<50kW 100kW 300kW 500kW 1MW<
総出力
Energy & Resources Agency(2006)32
Head gettable at suitable points for waterpower use
落差 落差分布Head
Head gettable at suitable points for waterpower use
2.5落差工 落差分布
K幹線 KR支線
Distribution of Drops
K-main C l
K-2ndary C l
(m)
2.0HN支線 OT支線Canal Canal
1.5
差(m
)
1.0落
0.5
0.0
0 20 40 60 80 100 120 140
始点からの区間(1区間=500m)No. from intake point
(Kobayashi, 2010) 33
Potential of small hydropower devPotential of small hydropower dev.1 000 000
100,000
1,000,000
エネ庁
計算値
METI
Estimation
10,000
算
千kW以下サンプル調査
Estimation
Sample study(METI)
1,000
地点
数oc
atio
ns
100
地 Lo
1
10
1
1 10 100 1,000 10,000 100,000 1,000,000
出力(kW)Power
(Kobayashi, 2009)34
Unused Hydropower Potential in Unused Hydropower Potential in Existing Structure
DamDam‐ Environmental discharge‐ Surplus capacity‐ Surplus capacity 47.9GW of Capacity, 102.6TWh (2200hr/a) of annual
ti i 2010generation in 2010
Waterway‐Many drop/chute structures on irrigation canalsy p/ g‐ Existing waterway structure in water supply and sewage systemssewage systems
35
Comparison of small hydropower d l d development in Japan and Germany
><■ Japanese SHP is
considerably lagged behind
Loca
tions
considerably lagged behind compared with Germany
■ The lag comes from lack of L■ The lag comes from lack of social understanding, complicated administrative
GermanyJapan><
pprocedure, etc.
■However, now these <problems are improving as a
solution of GHG emission and energy problems
Source:METI, Renewable energy year book 2002/2003(GER)
■ We are sure about mushroom growth of SHP in the near future.
and energy problems.
36
Electricity Generationy3,084TWh1,284TWh
*Excludes pumped storage**Other includes geothermal, solar, wind, combustible renewables & waste, and heat.
(Source)IEA “KEY WORLD ENERGY STATISTICS” 200937
World Renewable Electricity Generation by SEnergy Source, 2006, 2015, and 2030
(Source):2006 Energy Information Administration(EIA), International Energy Annual 2006(June-December 2008)gy ( )
38
Hydro Potential in the World
Installed Hydropower Capacity (all scheme) at
yd o ote t a t e o d
Installed Hydropower Capacity (all scheme) at end-1999, Regional Distribution
Hydropower currently provides about 1/5Hydropower currently provides about 1/5 of the world electricity supply.Installed Capacity
:approx.700GW
4,875
1,668
2,792 2,706
568
1,668
711496 735
Hydropower-Technically Exploitable Capacity and 1999 Generation (allCapacity and 1999 Generation (all scheme) Regional Distribution
39
Hydro Potential in South East Asia
160,000 120,500
Developed Hydro Power Technical Feasible Hydro Power Potential
120,000
140,000
80 000
100,000
70,676entia
l in
(MW
)
60,000
80,000
11 214 36,610
,
Hyd
ro P
ot
20,000
40,000
27,504 29,500
11,214
12,2338,600
17,37918,933
36,6 026,929
8,000350 6,397
0 2,922 12 621 4,156 390 2,078 4,300 2,050230 3.4
Country
(Source : Hydropower & Dams, 2004)40
Regional Shares of Hydro ProductionRegional Shares of Hydro ProductionRegional Shares of Hydro ProductionRegional Shares of Hydro Production
*Includes pumped storage**Asia excludes China
(Source)IEA “KEY WORLD ENERGY STATISTICS” 2009**Asia excludes China
41
Evolution from 1971 to 2005 of Hydro Production by Region
(Source)IEA “KEY WORLD ENERGY STATISTICS” 200942
Technology Developmentof Standardized Overshot Waterwheel Generation Systemof Standardized Overshot Waterwheel Generation System
for Open Canal at Low Head Locations
wheel
generator
43
Combined efficiency (generated energy/theoretical output)
100%
90%
70%
80%
cy(%
)
50%
60%
def
ficie
nc
40%
Com
bine
d
20%
30%
30L/s
60L/s
C
0%
10%100L/s
150L/s
200L/s
0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35
rotational speed of turbine(r/s) 44
Combined power consumption pattern p p pof 40 households
50
40
45
Electricity Consumption
(kW)
30
35
20
25
10
15
0
5
0:00 2:00 4:00 6:00 8:00 10:00 12:00 14:00 16:00 18:00 20:00 22:00 0:00
Note) 40 households consumption data was prepared by estimation and random extraction of consumption data for 53 households (exclusion of holidays and weekends)p ( y )
(Kobayashi, 2009)45
Outline of the Waterwheel Generation System
Governor mechanism
Outline of the Waterwheel Generation System
DC200 vWT G パワ ン
1相 AC100/200 vDL
水車発電設備 分散型小水力発電需給制御機構 Waterwheel
generation facilities
Governor mechanism for small hydropower generation system
AC100V/200V Power conditioner WT G パワコン
L1 L2 Ln水位センサー 回転センサー
3相AC200V
・・・
AC 200V
Water table Rotation
DC(固定電圧)
AC/DCコンバータ
センサ・制御ユニット
水位センサ
非常停止
回転センサ AC/DC convertor Sencing/control
unit
Water table sensor sensor
Emergency Control
充放電装置Charging/discharging
facility
高電圧バッテリ
DC200V DLBattery
DC200V
46
Merits Merits of small hydropower generationy p g
47
Characteristics of small hydropowerCharacteristics of small hydropower
• Environmental friendly f l d• No fuel required
power generation of 1kWh– power generation of 1kWh• Thermal (petroleum):0.25ℓ• Thermal (coal):0.5kg
1kW small hydropower station– 1kW small hydropower station• 8,000kWh/yr=2.0kℓ-petroleum/yr• No drying up• No price changep g
48
Small hydropower is an acein GHG Reduction
800
1000
direct indirect
600
800
kWh
400
O2(
g.C
O2/
k
200
LC-C
O
0
Source: Agency for Natural Resources and Energy(2004)49
Comparison of PV and SHP for pproducting 2GW/year
PV SHP
required power 2,000kW 320kW
h f ti 1 000 h 6 875 hhr of operation per year 1,000 hr 6,875 hr
annual power output 2 0 GWh 2 2 GWhannual power output 2.0 GWh 2.2 GWh
initial cost 2 000 M¥ 440 M¥initial cost 2,000 M¥ 440 M¥
50
Effectsof Small hydropower Development
51
Various direct and indirect effectsVarious direct and indirect effectsby Regional Small hydro-power y g y p
Development•GHG reduction• regional energy development• regional energy development•regional self-supporting system•measure against global warming•environmental conservationenvironmental conservation•participation of residents for rural d l tdevelopment•sustainable developmentsusta nable development
52
CO reduction CO2 reduction expected Road Map of future SHP Development
J in Japan (Kobayashi, 2010)
year 2010 2013 2015 2020 20xxStations (500) 650 1 500 5 500 20 000
Target
Stations (500) 650 1,500 5,500 20,000Total
Power (150) 65 150 550 2,000(MW)
CO2 reduction(t CO /yr) - 250,250 577,500 2,117,500 7,700,000(t-CO2/yr)
Note) Estimation condition:CO2 emission rate of electricity at present: 0.55kg-CO2/kWhCO2 emission rate of electricity by small hydropower: 0 010 kg-CO2/kWh (temporary)CO2 emission rate of electricity by small hydropower: 0.010 kg-CO2/kWh (temporary)Annual operation hours of small hydropower generation facility: 7,000 hours
53
Local BusinessSmall Factory
54
Small-Micro Hydro Facilitationy& Innovative Technologies in Japan (NEF ,2006)
55
R d l t f H d Pl tRedevelopment of Hydropower Plants
H d l t h b t t d th • Hydropower plants have been constructed more than 100 years ago in Japan.M st h d p pl nts h d m th n 50 t 60 • Most hydropower plants have aged more than 50 to 60 and they became overaged.
• Some hydropower plants which were constructed more • Some hydropower plants which were constructed more than 50 years ago have potential of unused discharge, etcetc.
• Output can be increased in renewing hydropower facilities with higher efficiency.fac l t es w th h gher eff c ency.
• Unused water flow and head have potential of redevelopment.p
• Hydropower plants can be redeveloped when multipurpose dams are redeveloped at the same time.p p p
56
J i ti f Wat E RAbout J WatERJ-WatER
Japanese association for Water Energy Recovery
■ Foundation: Originally established as a non governmental (1) Profile
About J-WatER■ Foundation: Originally established as a non-governmental
organization in 2005■ Chairman : Mr Kazuo AICHI (Former Secretary of Environment Agency)■ Chairman : Mr. Kazuo AICHI (Former Secretary of Environment Agency)■ Members : about 130 individuals and 46 groups■ Regional J-WatER : 7 organizations (Toyama Yamanashi Nagano ■ Regional J WatER : 7 organizations (Toyama, Yamanashi, Nagano,
Gifu, Chugoku, Kumamoto,Kochi)
(2) Activities for SHP up to 1,000kW
■ SHP developed in Japan■ Policy Recommendation to the government■ Development assistance and Technical Support ■ Workshops, Technical Seminars and Study Tour■ Enlightening and Dissemination
57
Advisory Board
J-WatER
President y●SHINOHARA, Takashi (DPJ)● FUKUSHIMA, Mizuho (SDP)● FURUKAWA Yoshihisa (JCP)
PresidentAICHI Kazuo
● FURUKAWA, Yoshihisa (JCP)○IWAI, Funiomi (LDP)○YATSU, Yoshio (New Komei)● KATO Sh i hi LDP)
Vice-President
● KATO, Shunichi LDP)● SHIOKAWA, Tetsuya (JCP)● YOSHII, Hidekatsu (JCP)
Managing Board
SUDO, Ryosaku (Generation System & Mechanics)TAKEMURA, Kotaro (River & Water resources)DANMOTO, Yukio (Irrigation & Agriculture)
Regional WatER(Assosiation)
Cooperation
17 b d b
In process‐GUNMA
(Assosiation)Established‐TOYAMANAGANO+17 board members ‐TOKUSHIMA‐NAGANO‐YAMANASHI‐GIFU‐KUMAMOTO‐KOCHI●CHUGOKU SHPP Assoc.
58
Thank you for your attention.
59