添付資料-8 - jicaopen_jicareport.jica.go.jp/pdf/11736980_07.pdfkm to the south east of bajawa,...

添付資料-8

東ヌサトゥンガラ NGO による

マイクロ水力概略調査

DATA BASE by LPM – SDA ‘EDEN’

INVENTORY STUDY ON DEVELOPMENT POTENTIAL

FOR RURAL ELECTRIFICATION IN FLORES ISLAND - INDONESIA

Dona Nusa Tenggara Timur

Kupang, November,2002


2. SITE DESCRIPTION

Dona – Naruwolo 1. GENERAL INFORMATION Province : Nusa Tenggara

Timur Regency : Ngada District : Jerebuu Village : Naruwolo Site / Sub-village : Dona River : Waenanu Gross Head : 42 m Estimate Design Discharge: 108 l/s Hydraulic Potential Power : 44.50 kW Estimate Electrical Power : 29.67 kW Catchments area : 4.16 km2

Jerebuu Dona

2.1. Location

Dona sub-villages is one of thepotential site for a Micro Hydropower(MHP) implementation. Dona Sub-villages is a part of Naruwolo, Jerebuudistrict, Ngada regency, Nusa TenggaraTimur province. It is locatedgeographically at S 080 54’ 07,69” andE 1210 01,28’ 32,98”. Dona villagenorth border is Were 1 village,Wogowela the southern side, Dariwaliat the western side and Boba villageeastern side.

2.3. Topographic and Geological Condition

The MHP scheme will use water fromWaenanu River. The river located on theSouth of Dona sub-villages. From the MHPscheme (power house location) the rivergoes to the north direction. Topographicconditions along the river are moderateslope, while the soil condition in waterwayis loose. And the materials around the riverare gravel and loose soil. There is aseparate channel (waterway) in the middlepart of head race, and also a split streamon the intake scheme (it is recommendedto make a further measurement here, toadapt this condition).


Table 1. Route of Access Line

Route Distance Duration Available Transportation

Layer (road) Type

Bajawa – Jerebuu Jerebuu - Noge Noge – Dona (MHP scheme location)

20 km 5 km

5 km

60 minutes 15 minutes 30 minutes

Bus Bus -

Asphalt Asphalt, Grave

Soil

3. SOCIO – ECONOMIC CONDITION

Village settlements in Naruwolovillage are spread not concentrated.There is an adequate distancebetween every small group from oneto another. Almost the villagers arefarmers. Their main crops are coffee,chocolate, and passion fruit. Theystill cultivate their land in traditionalway, without any modern agricultureknow-how.

According to the agriculture potential inthe area, Dona sub-village is quiteprospective to develop further. There areexisting public facilities such aselementary school, church, public healthcenter, and village government office.There are also community organizationsuch as LKMD, Farmer groups, andreligious groups.

2.2. Accessibility

Dona sub-villages located about 30km to the south east of Bajawa, Ngadaregency, Nusa Tenggara Timurprovince. The location could be reachby four wheel vehicle such Kijang ormotorcycle for about 2 hour fromBajawa, or by a public transportation(buses, rented car) which service routeamong Bajawa and Jerebuu - Naruwolovillage. From Naruwolo, Dona the MHPscheme location (power house) couldbe reached by walk in ± 10 minutes. (see Table 1.)


4. POTENTIAL ENERGY SOURCES AND ELECTRIFICATION CONDITION

Elementary School in Dona

Table 2. Sub-Villages which will electrified by the MHP Scheme

Sub-Village Village Number of Household Latitude Line Longitude Line

Dona Bhata

Total

Naruwolo Naruwolo

120 52

172

The villages around MHP scheme hasnot been electrified and will not getelectricity from PLN grid, at least in therecent PLN plan. The nearest PLNelectricity grid is about 21 km. Existingmain energy sources for villagers thereare kerosene, and oil for lighting. The village around MHP schemeeconomically has many potential,especially in agriculture, horticulture,and forestry sectors. However, relatedproduction facilities are still insufficient,there are some possibilities such as;vanilla, cocoa, clove, and coffeegrinding.

MHP development is expected givingvaluable support to increasecommunity economics quality apartfrom lighting need.

The numbers of household thatwill electrify by MHP scheme atNaruwolo village are ±172household. Based on empiric data ofelectrification project using MHP, theestimate electricity need or electricalpower need assumption is about 125watt per house. Including theelectricity need to several publicfacilities, than total MHP Capacityexpected for Naruwolo villages isabout 22,95 kW.


Table 3. Estimate Energy Demand in the Catchment Area

Item Amount Capacity per Unit Capacity Remark

Households School Church Public Health Center Village Office Public Facility (Streed Lighting)

Total

172 1 1 1 1

125 W 100 W 150 W 100 W 100 W

21,5 kW 0,1 kW 0,15 kW 0,1 kW 0,1 kW 1,00 kW

22,95 kW

- Elementary School

Meeting Facility

5. HYDRO – POWER POTENTIAL

According to topographicmeasurement ,water from Waenanuriver will be flow through intake than toheadrace which the length is about 400m . For this MHP scheme, measuredgross head is about 42 m and estimatepenstock length is abouth 98 m. Detailpenstock profile is shown. Estimate minimum power electricityneed in Naruwolo village and it issurrounding is about 22.95 kW. Tofulfill this requirement, the future MHPdischarge have to be about 108 l/swith the estimate net head 40 m, withthis calculation the MHP scheme couldgenerate electricity power about 28.18kW and still have reserved powerabout 5.23 kW (see detail calculationat Table 4.).

Waenanu River is ± 180 liter/second.Recorded discharge data or annualdischarge are not available anddischarge measurement done not inthe driest month,therefore maximumdischarge in the dry season estimateabout 108 l/s. However, design discharge has to bedetermined in detail and moreaccurate, considering all factor, andcatchment area when a furtherfeasibility study for this MHP done. 6. TRANSMISSION LINE The village settlement surroundingthe MHP scheme is spread and insmall group which have significantdistance from each other. Maintransmission line to house sub-villages, as shown in Table 2, isabout 5 km length.


Table 4. Estimate Power Capacity of The MHP Scheme

Item SymbolEstimate Gross Head Hg 42 mMeasured Discharge (when survey) Qm 180.00 l/sDesign Discharge (max 60 % frm Qm) Qd 108.00 l/sHydrolic Power Potential Ph 44.50 kWEstmate Net Head Hnet 40 mEstimate Turbine Efficiency ηT 0.7Estimate Generator Efficiency ηG 0.85Estimate mechanical transmission line efficiency ηM 0.97Estimate Electrical Power Generated at the power house P el1 29.67 kWEstimate transmission Losses Ploss 1.48 kWEstmate Electrical Power delivered to the village P el2 28.18 kWExpected MHP Capacity (refers table 3) P exp 22.95 kWReserved Power (Pel2 - Pel1) P res 5.23 kW

Amount




MAMBA Nusa Tenggara Timur



2. SITE DESCRIPTION

Mamba – Wangkar Weli 1. GENERAL INFORMATION Province : Nusa

Tenggara Timur

Regency : Manggarai District : Pocoranaka Village : Wangkar Weli Site / Sub-village : Mamba River : Wae Nunung Gross Head : 72 m Estimate Design Discharge: 210 l/s Hydraulic Potential Power : 148.33 kW Estimate Electrical Power : 100.94 kW Catchments area : 9.23 km2

2.1. Location

Mamba sub-villages is one of thepotential site for a Micro Hydropower(MHP) implementation. Mamba Sub-villages is a part of Wangkar Weli,Pocoranaka district, Manggarairegency, Nusa Tenggara Timurprovince. It is located geographically atS 080 33’ 16” and E 1200 38’ 39”.Wangkar Weli village north border isRengkam village, Rendenao district atthe southern side, Tango Molas districtat the western side and Ngkiong Doravillage at the eastern side.


The MHP scheme will use water from WaeNunung River. The river located on theSouth of Mamba sub-villages. From theMHP scheme (power house location) theriver goes to the north direction.Topographic conditions along the river aremoderate slope, while the soil condition inwaterway is loose. And the materialsaround the river are gravel and loose soil.There is a separate channel (waterway) inthe middle part of head race, and also asplit stream on the intake scheme (it isrecommended to make a furthermeasurement here, to adapt thiscondition).




Layer (road) Type

Ruteng – Pocoranaka Pocoranaka - Wangkar Weli Wangkar Weli – Mamba (MHP scheme location)

13 km 27 km

0,2 km


Bus Rented car

-


soil


Village settlements in Wangkar Welivillage are spread not concentrated.There is an adequate distancebetween every small group from oneto another. Almost the villagers arefarmers. Their main crops are coffee,chocolate, and passion fruit. Theystill cultivate their land in traditionalway, without any modern agricultureknow-how.

According to the agriculture potential inthe area, Mamba sub-village is quiteprospective to develop further. There areexisting public facilities such aselementary school, church, public healthcenter, and village government office.There are also community organizationsuch as LKMD, Farmer groups, andreligious groups.

2.2. Accessibility

Mamba sub-villages located about40 km to the east of Ruteng,Manggarai regency, Nusa TenggaraTimur province. The location could bereach by four wheel vehicle such Kijangor motorcycle for about 3 hour fromRuteng, or by a public transportation(buses, rented car) which service routeamong Ruteng and Pocoranaka -Wangkar Weli village. From WangkarWeli, Mamba the MHP scheme location(power house) could be reached bywalk in ± 10 minutes. (see Table 1.)



Catchment Area of Wae Nunung River (Wangkar Weli)



Mamaba Pos

Jawa Well

Total

Wangkar Weli Wangkar Weli Wangkar Weli Wangkar Weli Ngkiong Dora

33 55 60 33 200 381

The villages around MHP scheme hasnot been electrified and will not getelectricity from PLN grid, at least in therecent PLN plan. The nearest PLNelectricity grid is about 15 km. Existingmain energy sources for villagers thereare kerosene, and oil for lighting. The village around MHP schemeeconomically has many potential,especially in agriculture, horticulture,and forestry sectors. However, relatedproduction facilities are still insufficient,there are some possibilities such as;sawmill, rice mill, and coffee grinding.MHP development is expected givingvaluable support to increase communityeconomics quality apart from lightingneed.

The numbers of household thatwill electrify by MHP scheme atWangkar Weli village are ±381household. Based on empiric data ofelectrification project using MHP, theestimate electricity need or electricalpower need assumption is about 150watt per house. Including theelectricity need to several publicfacilities, than total MHP Capacityexpected for Wangkar Weli villages isabout 59.08 kW.


Table 3. Estimate Energy Demand in The Catchment Area



Total

381 1 1 1 1

150 W 150 W 150 W 150 W 150 W

57,15 kW 0,15 kW 0,15 kW 0,15 kW 0,15 kW 2,00 kW

59,08 kW

- Elementary School

Meeting Facility


According to topographicmeasurement , water from WaeNunung river will be flow throughintake than to headrace which thelength is about 300 m . For this MHPscheme, measured gross head is about72 m and estimate penstock length isabouth 200 m. Estimate minimum power electricityneed in Wangkar Weli village and it issurrounding is about 59,08 kW. Tofulfill this requirement, the future MHPdischarge have to be about 210 l/swith the estimate net head 70 m, withthis calculation the MHP scheme couldgenerate electricity power about95,9 kW and still have reserved powerabout 36,82 kW (see detail calculation

Wae Nunung River is ± 350liter/second. Recorded discharge dataor annual discharge are not availableand discharge measurement donenot in the driest month,thereforemaximum discharge in the dryseason estimate about 210 l/s. However, design discharge has to bedetermined in detail and moreaccurate, considering all factor, andcatchment area when a furtherfeasibility study for this MHP done. 6. TRANSMISSION LINE The village settlement surroundingthe MHP scheme is spread and insmall group which have significantdistance from each other. Maintransmission line to house sub-villages, as shown in Table 2, isabout 8 km length.


Table 4.

Estimate Power Capacity of The MHP Scheme

Item SymbolEstimate Gross Head Hg 72 mMeasured Discharge (when survey) Qm 350.00 l/sDesign Discharge (max 60 % frm Qm) Qd 210.00 l/sHydrolic Power Potential Ph 148.33 kWEstmate Net Head Hnet 70 mEstimate Turbine Efficiency ηT 0.7Estimate Generator Efficiency ηG 0.85Estimate mechanical transmission line efficiency ηM 0.97Estimate Electrical Power Generated at the power house P el1 100.94 kWEstimate transmission Losses Ploss 5.05 kWEstmate Electrical Power delivered to the village P el2 95.90 kWExpected MHP Capacity (refers table 3) P exp 59.08 kWReserved Power (Pel2 - Pel1) P res 36.82 kW

Amount




Wangkung Nusa Tenggara Timur



2. SITE DESCRIPTION

Wangkung – Popo 1. GENERAL INFORMATION Province : Nusa Tenggara

Timur Regency : Manggarai District : Satarmese Village : Popo Site / Sub-village : Wangkung River : Wae Lolong Gross Head : 30 m Estimate Design Discharge: 467.40 l/s Hydraulic Potential Power : 137.56 kW Estimate Electrical Power : 89.87 kW Catchments area : 16.23 km2

2.1. Location

Wangkung sub-village is one of thepotential sites for a Micro Hydropower(MHP) implementation. WangkungSub-villages is a part of Popo,Satarmese district, Manggarai regency,Nusa Tenggara Timur province. It islocated geographically at S 080 42’ 11”and E 1200 22’ 57”. Popo village northborder is Lia village, Gulung village atthe southern side, Lia village at thewestern side and Pongkor village at theeastern side.


The MHP scheme will use water from WaeLolong River. The river located on theSouth of Wangkung sub-villages. From theMHP scheme (power house location) theriver goes to the north direction.Topographic conditions along the river aremoderate slope, while the soil condition inwaterway is loose. And the materialsaround the river are gravel and loose soil.There is a separate channel (waterway) inthe middle part of head race, and also asplitted stream on the intake scheme (it isrecommended to make a furthermeasurement here, to adapt thiscondition).




Layer (road) Type

Ruteng – Satarmese Satarmese - Popo Popo – Wangkung (MHP scheme location)

16 km 21 km

0.3 km


Bus Bus -


Soil


Village settlements in Popo villageare spread not concentrated. There isan adequate distance between everysmall group from one to another.Almost the villagers are farmers.Their main crops are coffee,chocolate, and passion fruit. Theystill cultivate their land in traditionalway, without any modern agricultureknow-how.

According to the agriculture potential inthe area, Wangkung sub-village is quiteprospective to develop further. There areexisting public facilities such aselementary school, church, public healthcenter, and village government office.There are also community organizationsuch as LKMD, Farmer groups, andreligious groups.

2.2. Accessibility

Wangkung sub-villages locatedabout 38 km to the east of Ruteng,Manggarai regency, Nusa TenggaraTimur province. The location could bereach by four wheel vehicle such Kijangor motorcycle for about 1.5 hour fromRuteng, or by a public transportation(buses, rented car) which service routeamong Ruteng and Satarmese - Popovillage. From Popo, Wangkung theMHP scheme location (power house)could be reached by walk in ± 10minutes. (see Table 1.)





Cambul Wangkung

Total

Popo Popo

110 120

230

The villages around MHP scheme hasnot been electrified and will not getelectricity from PLN grid, at least in therecent PLN plan. The nearest PLNelectricity grid is about 6 km. Existingmain energy sources for villagers thereare kerosene, and oil for lighting. The village around MHP schemeeconomically has many potential,especially in agriculture, horticulture,and forestry sectors. However, relatedproduction facilities are still insufficient,there are some possibilities such as;sawmill, rice mill, and coffee grinding.MHP development is expected givingvaluable support to increasecommunity economics quality apartfrom lighting need.

The numbers of household that willelectrify by MHP scheme at Popovillage are ±230 household. Based onempiric data of electrification projectusing MHP, the estimate electricityneed or electrical power needassumption is about 150 watt perhouse. Including the electricity need toseveral public facilities, than total MHPCapacity expected for Popo villages isabout 59,5 kW.


Table 3. Estimate Energy Demand in The Catchment Area



Total

230 1 1 1 1 10

250 W 250 W 250 W 250 W 250 W 100 W

57.5 kW 0.25 kW 0,25 kW 0,25 kW 0,25 kW 1,00 kW

59,5 kW

- Elementary School

Meeting Facility


According to topographicmeasurement , water from WaeLolong river will be flow through intakethan to headrace which the length isabout 300 m . For this MHP scheme,measured gross head is about 30 mand estimate penstock length is abouth90 m. Detail penstock profile is shown. Estimate minimum power electricityneed in Popo village and it issurrounding is about 59.5 kW. To fulfillthis requirement, the future MHPdischarge have to be about 467.40 l/swith the estimate net head 28 m, withthis calculation the MHP scheme couldgenerate electricity power about85.38 kW and still have reservedpower about 25.88 kW (see detailcalculation at Table 4.).

Wae Lolong River is ± 779liter/second. Recorded discharge dataor annual discharge are not availableand discharge measurement donenot in the driest month, thereforemaximum discharge in the dryseason estimate about 467.40 l/s. However, design discharge has to bedetermined in detail and moreaccurate, considering all factor, andcatchments area when a furtherfeasibility study for this MHP done. 6. TRANSMISSION LINE The village settlement surroundingthe MHP scheme is spread and insmall group which have significantdistance from each other. Maintransmission line to house sub-villages, as shown in Table 2, isabout 5 km length.


Table 4. Estimate Power Capacity of the MHP Scheme

Item SymbolEstimate Gross Head Hg 30 mMeasured Discharge (when survey) Qm 779,00 l/sDesign Discharge (max 60 % frm Qm) Qd 467,40 l/sHydrolic Power Potential Ph 137,56 kWEstmate Net Head Hnet 28 mEstimate Turbine Efficiency ηT 0,7Estimate Generator Efficiency ηG 0,85Estimate mechanical transmission line efficiency ηM 0,97Estimate Electrical Power Generated at the power house P el1 89,87 kWEstimate transmission Losses Ploss 4,49 kWEstmate Electrical Power delivered to the village P el2 85,38 kWExpected MHP Capacity (refers table 3) P exp 59,50 kWReserved Power (Pel2 - Pel1) P res 25,88 kW

Amount




ROTOK Nusa Tenggara Timur

Kupang, Januari,2003


2. SITE DESCRIPTION

Rotok – Hililintir 1. GENERAL INFORMATION Province : Nusa Tenggara

Timur Regency : Manggarai District : Satarmese Village : Hililintir Site / Sub-village : Rotok River : Wae Mau Gross Head : 80 m Estimate Design Discharge: 163 l/s Hydraulic Potential Power : 128.08 kW Estimate Electrical Power : 73.01 kW

2.1. Location

Rotok sub-villages is one of thepotential site for a Micro Hydropower(MHP) implementation. Rotok Sub-villages is a part of Hililintir, Satarmesedistrict, Manggarai regency, NusaTenggara Timur province. It is locatedgeographically at S 080 46’ 33” and E1200 22’ 09”. Hililintir village northborder is Forest, Sawu Sea at thesouthern side, Terong district at thewestern side and Golorompong villageat the eastern side.


The MHP scheme will use water from WaeMau River. The river located on the Southof Rotok sub-villages. From the MHPscheme (power house location) the rivergoes to the north direction. Topographicconditions along the river are moderateslope, while the soil condition in waterwayis loose. And the materials around the riverare gravel and loose soil. There is aseparate channel (waterway) in the middlepart of head race, and also a split streamon the intake scheme (it is recommendedto make a further measurement here, toadapt this condition).




Layer (road) Type

Ruteng – Satarmese Satarmese - Hililintir Hililintir – Rotok (MHP scheme location)

71 km 10 km

1 km


Bus Rented car

-


soil


Village settlements in Hililintir villageare spread not concentrated. There isan adequate distance between everysmall group from one to another.Almost the villagers are farmers.Their main crops are coffee,chocolate, and passion fruit. Theystill cultivate their land in traditionalway, without any modern agricultureknow-how.

According to the agriculture potential inthe area, Mamba sub-village is quiteprospective to develop further. There areexisting public facilities such aselementary school, church, public healthcenter, and village government office.There are also community organizationsuch as LKMD, Farmer groups, andreligious groups.

2.2. Accessibility

Rotok sub-villages located about 82km to the east of Ruteng, Manggarairegency, Nusa Tenggara Timurprovince. The location could be reachby four wheel vehicle such Kijang ormotorcycle for about 3,5 hour fromRuteng, or by a public transportation(buses, rented car) which service routeamong Ruteng and Satarmese -Hililintir village. From Hililintir, Rotokthe MHP scheme location (powerhouse) could be reached by walk in ±20 minutes. (see Table 1.)





Rotok Narang Kute Reda

Total

Hililintir Hililintir Hililintir Hililintir

70 80 115 50

315


The numbers of household that willelectrify by MHP scheme at Hililintirvillage are ±315 household. Based onempiric data of electrification projectusing MHP, the estimate electricityneed or electrical power needassumption is about 150 watt perhouse. Including the electricity need toseveral public facilities, than total MHPCapacity expected for Hililintir villagesis about 64,08 kW.


Table 3. Estimate Energy Demand in the Catchment Area



Total

315 1 1 1 1 10

200 W 200 W 200 W 200 W 200 W 100 W

63 kW 0.2 kW 0.2 kW 0.2 kW 0.2 kW 1 kW

64,08 kW

- Elementary School

Meeting Facility


According to topographicmeasurement , water from Wae MauRiver will be flow through intake thanto headrace which the length is about96 m. For this MHP scheme, measuredgross head is about 30 m and estimatepenstock length is about 90 m. Detailpenstock profile is shown . Estimate minimum power electricityneed in Hililintir village and it issurrounding is about 64,08 kW. Tofulfill this requirement, the future MHPdischarge have to be about 163 l/swith the estimate net head 28 m, withthis calculation the MHP scheme couldgenerate electricity power about 69,35kW and still have reserved powerabout 5.27 kW (see detail calculationat Table 4.).

Actual discharge measured of WaeMau River is ± 272 liter/second.Recorded discharge data or annualdischarge are not available anddischarge measurement done not inthe driest month, therefore maximumdischarge in the dry season estimateabout 163 l/s. However, design discharge has to bedetermined in detail and moreaccurate, considering all factor, andcatchments area when a furtherfeasibility study for this MHP done. 6. TRANSMISSION LINE The village settlement surroundingthe MHP scheme is spread and insmall group which have significantdistance from each other. Maintransmission line to house sub-villages, as shown in Table 2, isabout 7 km length.


Table 4. Estimate Power Capacity of The MHP Scheme

Item SymbolEstimate Gross Head Hg 80 mMeasured Discharge (when survey) Qm 272,00 l/sDesign Discharge (max 60 % frm Qm) Qd 163,20 l/sHydrolic Power Potential Ph 128,08 kWEstmate Net Head Hnet 76 mEstimate Turbine Efficiency ηT 0,6Estimate Generator Efficiency ηG 0,85Estimate mechanical transmission line efficiency ηM 0,97Estimate Electrical Power Generated at the power house P el1 73,01 kWEstimate transmission Losses Ploss 3,65 kWEstmate Electrical Power delivered to the village P el2 69,35 kWExpected MHP Capacity (refers table 3) P exp 64,08 kWReserved Power (Pel2 - Pel1) P res 5,27 kW

Amount




Sano Nggoang Nusa Tenggara Timur

Kupang, Januari,2003


2.2. Accessibility

Golo Ndaring villages located about133 km to Ruteng, ManggaraiRegency, East Nusa TenggaraProvince. The location could be reachby four wheel vehicle such Kijang ormotorcycle for about 2 hour fromRuteng, or by a public transportation(bus, rented car) which service routeamong Ruteng and Sano Nggoang -Golo Ndaring village. From GoloNdaring, the MHP scheme location(power house) could be reached bywalk in ± 20 minutes. (see Table 1.)

2. SITE DESCRIPTION



Layer (road) Type

Ruteng – Golo Mbu Golo Mbu – Golo Ndaring Golo Ndaring – (MHP Scheme)

131 km 2 km 2 km


Bus - -

Asphalt Soil

Path

Catchment’s area

2.1. Location A Golo Ndaring village is one of thepotential sites for a Micro Hydropower(MHP) implementation. A Golo Ndaringvillage is a part of Sano NggoangDistrict, Ende Regency, and East NusaTenggara Province. It is locatedgeographically at S 080 42’ 25” and E1200 04 18”. Golo Ndaring village northborder is Waelolong village, SanoNggoang village at the southern side,Mbeliling forest at the western side andGolo Mbu village at the eastern side.


The MHP scheme will use water from WaeRacang River. From the MHP scheme(power house location) the river goes tothe east direction. Topographic conditionsalong the river are moderate slope, whilethe soil condition in waterway is loose. Andthe materials around the river are graveland loose soil. There is a separate channel(waterway) in the middle part of headrace, and also a split stream on the intakescheme (it is recommended to make afurther measurement here, to adapt thiscondition).






Golo Ndaring Gurung

Total

Golo Ndaring Golo Ndaring

125 98

223


The numbers of household that willelectrify by MHP scheme at GoloNdaring village are ± 223 household.Based on empiric data ofelectrification project using MHP, theestimate electricity need or electricalpower need assumption is about150 watts per house. Including theelectricity need to several publicfacilities, than total MHP Capacityexpected for Golo Ndaring villages isabout 35,55 kW (see detailcalculation at Table 3).

.

Village settlements in Golo Ndaringvillage are a half in concentrated anda half is spread. There is anadequate distance between everysmall group from one to another.Almost the villagers are farmers.Their main crops are coffee,candlewood, chocolate and rice plant.They still cultivate their land intraditional way, without any modernagriculture know-how.

According to the agriculture potential inthe area, Golo Ndaring village is quiteprospective to develop further. There areexisting public facilities such asElementary School, Junior High School,Church, public health center, and villagegovernment office. There are alsocommunity organization such as LKMD,Farmer groups, and religious groups.


Table 3.

Estimate Energy Demand in the Catchments Area


Households School Church Public Health Center Village Office Public Facility (Street Lighting)

Total

223 1 1 1 1 10

150 W 150 W 150 W 150 W 150 W 150 W

33,45 kW 0,15 kW 0,15 kW 0,15 kW 0,15 kW 1,5 kW

35,55 kW

- Elementary School

Meeting Facility


Wae Racang River will be flow throughintake. For this MHP scheme,measured gross head is about 48 mand estimate penstock length is about96 m. Detail penstock profile is shown. Estimate minimum power electricityneed in Golo Ndaring village and it issurrounding is about 35,55 kW. Tofulfill this requirement, the future MHPdischarge have to be about 150 l/swith the estimate net head 48 m, withthis calculation the MHP scheme couldgenerate electricity power about38,58 kW and still have reserved powerabout 3,03 kW. 6. TRANSMISSION LINE The village settlement surrounding theMHP scheme is spread and in smallgroup which have significant distancefrom each other. Main transmission lineto house sub-villages is about 1500 mlength.

Wae Racang River is ± 250liter/second. Recorded discharge dataor annual discharge are not availableand discharge measurement donenot in the driest month, thereforemaximum discharge in the dryseason estimate about 150 l/s. However, design discharge has to bedetermined in detail and moreaccurate, considering all factor, andcatchment’s area when a furtherfeasibility study for this MHP done.


Table 4. Estimate Power Capacity of the MHP Scheme

Item Symbol

Estimate Gross Head Hg 48 mMeasured Discharge (when survey) Qm 250 l/sDesign Discharge (max 60 % frm Qm) Qd 150 l/sHydrolic Power Potential Ph 70.63 kWEstmate Net Head Hnet 46 mEstimate Turbine Efficiency ηT 0.6Estimate Generator Efficiency ηG 0.85Estimate mechanical transmission line efficiency ηM 0.97Estimate Electrical Power Generated at the power house P el1 40.61 kWEstimate transmission Losses Ploss 2.03 kWEstmate Electrical Power delivered to the village P el2 38.58 kWExpected MHP Capacity (refers table 3) P exp 35.55 kWReserved Power (Pel2 - Pel1) P res 3.03 kW

Amount

添付資料-8 - jicaopen_jicareport.jica.go.jp/pdf/11736980_07.pdfkm to the south east of bajawa,...

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