Format for Detailed Feasibility Studies of Prospective Mini-hydro

Projects

This format is intended for use in conducting detailed feasibility studies for proposed mini-hydro plants.

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A. BASIC INFORMATION1. General Name of Scheme: ……………………………………..

Location: VDC: ….………………… Ward No.:….... Village:-……………………….

District: ………………………………….

Comments: ……………………………………………………………………………….

……………………………………………………………………….……………………..

Date of site visit: ……………………………………

UC Chairman / Developer: …………………………………

Address: ……………………………………..

Comments: ……………………………………………………………………………..

……………………………………………………………………………………………

Study team leader …………………………………. Signature: ………………….…

Team members:

S.N. Name Profession

Persons Interviewed, address Address

2. Site Information How was the site reached?…………. hours/days walk from roadhead. Name of roadhead ……………………..hours/days walk from airfield. Name of airfield: ………………..

Time for loaded porter to reach the site form roadhead/airfield……………………..

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Instructions

Provide sufficient details of the persons interviewed so that they can be contacted later if necessary.

B. LOAD FORECAST

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C. TECHNICAL INFORMATION

Source River/ Stream: ……………….

INTAKE SITELocation:…………………………………………………………..

River Width at Intake site (Approx.): …………………

River Gradient at Intake site (Approx.):-…………….Elevation: …….. masl

GPS Cordinates of intake (x,y, z): ………… ……………. ……………

GRAVEL TRAPGravel trap Location: …………. m, the from intake

Flushing location & description: …………………………………………………………………………………………………………….

Are ground protection measures required? Yes No

SETTLING BASINSettling basin: ………….. m, from the intake

Flushing location & description: ………………………………………………………………………………………………………………

Are ground protection measures required? Yes No

HEADRACEOpen canal lengths & corresponding chainages:………… …………………………………………………………………………….

Headrace pipe lengths & corresponding chainages: ……………………………………………………………………………

Unstable lengths requiring stabilisation:……………. m

FOREBAYForebay: ……………………………………

Flushing location & description: ………………………………..………………………………………………

Are ground protection measures required? Yes No

PENSTOCKTotal length: …….. m, No of Vertical bends: ……. nos.

No of Horizontal bends: ………. , Gross head, Hgross: ………. m.

POWERHOUSE SITEDescription of location: ……………………………………………….……………………………………………………………………………

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Fill in all of the technical information and provide appropriate comments as necessary, especially in the slope stability issues.

Based on the survey measurements and data, state the number of individual bends required along the penstock alignment in the space provided.

……………………………………………….… Elevation: …….masl

………… m above annual flood level of the river

GPS Cordinates of intake (x,y, z):

………… ……………. ……………

Distance from powerhouse to river bank / tailrace exit point: ……mAre ground protection measures required at powerhouse?Yes No

OTHER STRUCTURES

Comment and describe if any other hydraulic structures required for the project:…………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

TRANSMISSION LINE

Transmission line length:…………… m

Distribution line length: ……………m

Will part of the scheme alignment or some structures have to be located on private land? Yes No

If yes, specify alignment/structures that will have to be located on private land: ……………………………………………………………………………………………………………………………………….

Is (are) the land owner(s) willing to have the alignment/structures on their land? Yes No Comments: ………………………………………………………………………….………………………………………………………………………….

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D. HYDROLOGICAL STUDYName of the River /Stream : ……………………….

Catchment Area at Intake : ……………. km2

Measured flow at intake, Qi = ……………. l/s

Corresponding Gauge Height : ……. m at……….. (Time)

Date of flow measurement: ……………………..

Method used to measure the flow : Select below

Conductivity Method (Salt Dilution Method)

Velocity Area Method (Current Meter)

Hydraulic Method

(Attach separarte sheet for data & Calculation)

Flow Measured by: ……………………..

Name & Address of the Gauge Reader:

Name:-

Address:-

If there are water diversions (e.g., irrigation) close to the intake, i.e., within 2 hours walking distance, the flow diverted at these locations should also be measured and used to determine the 11-month exceedance flow based on MIP.

Upstream flows abstraction (if any), Qup: …………. l/s

Specify water use (drinking water, irrigation etc): …………..

Downstream water use: Qd: …………………..(l/s),

Specify water use (drinking water, irrigation etc): …………………

Irrigation practices in the area (seasonal, year round, rotational etc.):

……………………………………………………………………………

Will there be any water right conflict due to the implementation of the

scheme? Yes No

Comments on water right issues: ……………………………………………. …………………………….

……………………………………………………………………………

Other possible conflicts due to the implementation of the scheme:

…………………………………………………………………………………

Multipurpose ProjectsCan multiple uses of water resources be promoted in this project?

Yes No

If yes, besides power generation, other uses are:

Irrigation Drinking water Others (specify): …………………………

Modifications required in the scheme layout or components to incorporate multiple uses of the water esources:

…………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

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If flows are abstracted upstream of the intake, these should also be measured and included.

Selection of Gauging Site and Establishment of Staff Gauge

The gauging site must be selected with due care to assure that the stage-discharge curve is reasonably constant over a long period of about a few years.

The following are selection criteria for the gauging site:

i) The stream should have a well defined cross-section that does not change in various seasons.

ii) It should be easily accessible all through the year.

iii) The site should be in a straight, stable reach.

iv) The site should be free from back-water effects in the channel.

E. TOPOGRAPHICAL SURVEYTopographical Sheet No. :- …………………….Scale of the Map:-(Topographical Maps prepared by Survey Department, GoN)Draw a general sketch (plan) of the scheme from the intake to the tailrace (i.e., birds eye view) in the box below: (Use separate sheets if needed)

Draw a general layout plan of the transmission/distribution areas from the powerhouse:

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Similarly, a sketch of the transmission / distribution line should be included in the box provided.

A general plan from the intake to the powerhouse and tailrace should be drawn at site for comparison with the survey drawings, which would be prepared later. Although, this drawing need not be in scale, the waterway lengths and locations of the structures should be mentioned.

It is, however, recommended that Topographical map (prepared by Survey Department, GoN) shall be brought during the Field visit and general plan together with locations of structures shall be drawn on the map.

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F. GEOLOGICAL SURVEY1. Format for Diversion Weir Axis ( geological x-section along weir

axis):

Left abutment, right abutment, slopes on left/ right abutments, width of river banks, composition on river bed material, composition of abutments etc.). Sample cross section.

2. Format for geological conditions along headrace canal: chainage vs. geological features like common soil, colluvial deposit, rock/cliff, stream crossings, cultivated land, forest, landslide, springs, swamps, foot trail/ road, canal, bridge etc. Special attention should be given on seepage area and their evaluation for construction, slope stability, bearing capacity,

ChainageGeological Features Remarks

From To

3. Format for Forebay & spillway (stability of site, area, water discharge, spillway etc.)

Material at foundation

Bed rock Residual soil/ Colluvial deposit/ Alluvial deposit/ Glacial deposit/ any other type of

Remarks

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deposit

For bedrock foundation

Fracture pattern

Parallel / random

Sets One set/ two sets/ more

Spacing of fracture

… … m to … … m

Opening of fracture

… … mm to … … mm

Dip of fracture planes

Towards hill slope/ cut slope

or against

Chances of Plane / Wedge Failure

Yes/ No

Criticality to structure

Risk/No Risk

For foundation on deposit

Thickness of deposit

… … mEstimate

Composition of deposit

Boulder mix/ gravel mix/

sand mix/ fine material

Degree of Compaction

Well/ moderate/ slightly/ loose

Ground water/ seepage/ or dry

… … … lit/min

Any land slides or mass movement in the structure area

Yes/ No

If yes

Circular failure

Size

Criticality to structure

Risk/ no risk

Planer failure

Size

Criticality to Risk/ no risk

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structure

Wedge failure

Size

Criticality to structure

Risk/ no risk

4. Format for penstock (slope, composition of foundation soil/ rock, bearing capacity, overburden etc.)

ChainageSlope

Geological Features

Soundness for foundationFrom to

5. Format for powerhouse/ tailrace site: topography, composition of foundation materials, type: surface, semi underground, in deep excavation; distance from river bank, HFL,

The excavation line should be modified and brought outside for mini hydro surface penstock and powerhouse

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FORMATS FOR CONSTRUCTION MATERIAL SURVEY

(a) Sand and Aggregates

Borrow Area No. … … … … (prepare separate tables for each borrow area separately)

Location

Length, m

Width, m

Height/ Depth, m Average of all test pits

Volume, m3

Sand, m3 … … …% (Average)

Aggregates (<10 mm), m3

… … …% (Average)

Aggregates (10 – 20 mm), m3

… … …% (Average)

Aggregates (>20 mm), m3

… … …% (Average)

(Prepare separate table for each deposit location/borrow area)

(b) Impervious Materials

Location

Length, m

Width, m

Height/ Depth, m (Average depth)

Volume, m3

(Prepare separate table for each deposit location/borrow area)

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G. SOCIO-ECONOMIC DETAILSEconomic ConditionIncome Level

VDC Villages

No. of Households with

high level Income

No. of Households with

Middle Level Income

No. of Households with Low Level

Income

Economic Activity

Income SourcesNo. of

Persons HouseholdsAgricultureLivestockDaily wage/Porter    Business    Cottage Industry    Livestock Products    Fruit and Vegetable Sales    Service    Pension    Remittance         

Agricultural ProductionProduct Unit Annual

ProductionPrice per

UnitPaddyMaizeWheatMilletOilseedBuckwheatPotatoes

Industry and Craft

TypeTotal No.

Location

VDC VillageWard No.

Rice/Timber MillMechanical Workshop

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FurnitureBakeryMilk ProductsKamiAlcohol

Business Entities

TypeTotal No.

Location

VDC VillageWard No.

Retail shopsTea ShopsHotel/LodgeBankAg. Tools & Equip. ShopsConstruction Materials ShopsElectrical GoodsPhotocopyDoctor’s ClinicPrinting Press

Public Services

TypeTotal No.

Location

VDC VillageWard No.

TempleSports Ground/ParkVDC BuildingMeeting HallHospital/Health PostVeterinary HospitalIrrigation OfficeForest OfficeAg. Service CenterPolice PostPost OfficeTelephone OfficeElectricity OfficeWater Supply OfficeAirportSchools

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Local Level Capacity

Education Level &

Type of Skills

Total No.

Location

VDC VillageWard No.

CarpenterMasonsElectriciansPlumbersOther Skilled ManpowerUnskilled Manpower

Education

Education Level & Type of Skills

Total No.

Location

VDC VillageWard No.

IlliterateUp to Class 10High School & AboveStudents:

- Girls- Boys

Drop Outs:- Girls- Boys

Consumption of Energy

TypeTotal

Location

VDC VillageWard No.

Kerosene (Ltrs./Month)Firewood (kg./Month)Ag. Residue (kg/Month)Battery (No./Month)Animal Dung (kg./Month)LPG (Cylinder/Month)Others (Specify)

Any development activities planned for the next three years?

Administrative Building …. Factory ….School …. Cottage Industry ….Water Supply …. Handicraft ….Sports Ground/Park …. Cooperative ….

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Health Post …. Irrigation ….Hospital …. Mining ….Telecommunication …. Road ….Bank …. Other (Specify) ….Rest House ….

If your VDC/village is provided with electricity services, how much would the people be willing to pay per month?

Description

% of HHs

Rs. 50 Rs. 100 Rs. 150 Rs. 200Over Rs.

200High Income HHsMiddle Income HHs Low Income HHs

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H. LOCAL RATESLocal Material Rates

Description Unit Rs./unit Comments

Sand

Block stone

Bond stone

Coarse aggregate

Wood

Unskilled labour Md

Mason Md

Carpenter Md

Technician Md

Kerosene litre

Diesel litre

Petrol litr

Pole Nos.

Transportation Rates

Type Unit Rs./unit Comments

Truck/tractor

Mule - easy load - difficult

Porter - easy load - difficult

Nearest major supply market for the project : ………………All weather road-head of the project site : ………………Fair weather road-head of the project site : ………………

Estimated Annual Operation and Maintenance cost

Operating costs Amount/month (RS)

Comments

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List the human resources costs required to run the plant. Note that the manpower of MH plants is also based on the size of the plant and the distribution area covered.

All salaries of people employed by the MHP - manager, operators, accountant should be estimated based on nearby MHP plants or the prevailing rates in the community for similar type of work (e.g., school teacher, government employee etc.)

Salary – manager

Salary – operator 1

Salary – operator 2

Salary – accountant

Salary – others

Salary – others

Office expenses

Miscellaneous

Total monthly operating cost

Annual Operating costs: ………………………..

Estimated annual maintenance cost: …… % of total project cost

Total operation and Maintenance cost: Rs ……………….

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I. MANAGEMENT & IMPLEMENTATION MODEL

ManagementProposed ownership: Company Community …………………..

Proposed Name of Project:…………………………………………….Comment: ………………….………..………………………………………..

Key People in proposed plant

ame Role in the proposed MH Plant Comments

Probable organisational structure

Availability of local people- with managerial / business skills - Good Fair Poor None

Manager already selected? Yes No

If yes, name: ………………………………...…………..……………………..

Experience: ………………………………….………………………………..

- with technical/mechanical repair skills - Good Fair Poor None

…………………………………………………………………………………

Type of training required if any:

…………………………………………………………………………………

If No, how will the manager be selected? ………………………………….

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Note the type of ownership proposed for the scheme; Company means a group of private individuals organising together to operate the MHP as a business for profit; Community means a group representative of the community to be served by the MHP collects the equity and organises the financing of the MHP and will operate it on behalf of the community. Also include proposed name of managing organisation if known.List the key people involved in the project and their role (e.g., developer, entrepreneur etc.)

Draw a simple sketch of the proposed organisational structure, eg.

Estimate the level of entrepreneurial ability of the management compared with other business people of the area.Assess the anticipated level of community participation in the MHP scheme, i.e. is the community involved in setting the tariff rate, making policy decisions? Such as how to punish payment defaulters etc. Comment as necessary.Note the availability of local people or people who are currently living away from the area but willing to return if a suitable opportunity arises with managerial and/or business operation experience, eg. have successfully operated a small business. Note if a person has already been selected to manage the scheme and the type of experience they have had. If someone has not already been selected comment on how they will be selected. Comment should also be provided if “Poor” or “None” is checked for the availability question. Note also if operators have already been selected, their names and experience, and how they will be selected if they have not already been.

Operators already selected? Yes No If yes, how? ………………….…………. Name: ……….…………………..

Experience: …………………………….………..……………………………..

Type of training required if any: ………………..…………………………….

If no, how will the operator(s) be selected? ……………………………..

IMPLEMENTATION MODEL (EQUITY/DEBT RATIO)

Equity contribution by developer and loan requirements:

Equity amount the developer/community is willing to invest:

Cash contribution: Total Rs. ……………………(or …. …. % of the Total Project Cost)

and Rs. ……………/ household if community owned.

Labour contribution ……………………. Persons/day = Rs. ………………….

In case of insufficient funds, the developer will:

Increase the equity contribution to meet the balance

Withdraw a bank load for the balance

Research Paper helphttps://www.homeworkping.com/

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Also note down whether training requirements are essential for the manager and operators (if already identified) and briefly describe the type of training required.

If this is a community owned scheme based on discussions at site, state also the cash contribution by participating households as well as the labour contribution in terms of person days as well as in rupee amount.

Since the project cost will be determined at a later stage the loan amount cannot be fixed at site. However, the survey team should inform the developer that there may be a need for a bank loan if the subsidy and the equity amount are less than the total project cost.