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    VEP- While mapping consider village distances for reducing t&d losses

    If the distance is large between two hamlets, it might be preferableto have 2 separate decentralized plants, to reduce T&D losses.

    We can use GIS further for optimizing the location of T&D lines &

    reducing losses. Value addition to the local economy (livelihoods, institutions)

    through energy.(give egs like irrigation, computer centre etc)

    Monitoring & evaluation indicators should be based on the businessmodel selected.

    Mention the revenue, business model being used.

    financial liability & local resources available

    Tariff structure

    Energy budgeting

    Roles & responsibilities (kind of expertise available, humanresources)

    Load Management

    Generation processes

    Irrigation Services

    Availability of diesel / AC rum pump with their capacity (HP rating),specific fuel consumption (at different water table)and present cost

    Season wise, crop wise, average running hour and discharge

    Farmer wise, pipe type wise availability of suction and delivery pipes

    Crop wise irrigation practices (flood, drip, sprinkler)

    Pump wise, crop wise average operation (Rs/hour), maintenance(Rs/season) and manpower cost (man-hour/crop)

    Farmer wise, season wise un-irrigated land due to lack of

    Water availability

    Energy service

    Domestic Services

    Household wise availability of various lighting devices (dibri, dia,candle, kishan torch, lantern, petromax, table lamp etc)

    Device wise, season wise average lighting hours (hrs/day) with devicewise specific fuel consumption

    Sources of fuel and household wise average expenditure on domesticlight (Rs/month)

    Family wise, fuel type (dung cake, log wood, kerosene, agro-residue,coal) wise average fuel consumption and cost of fuel

    Household wise other energy demand for home appliances

    Enterprise Services

    List of present and most feasible enterprises

    Contact details of potential entrepreneurs and their investmentcapacity

    Summary of pre-feasibility report of all possible enterprises withfollowing details

    Peak connected load Season wise maximum operation hour (hrs/day)

    Nature of energy requirement (continuous / intermittent)

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    Season wise preferred duration of operation (e.g. 9 am-12noon or 2-5 pm)

    Auxiliary energy demand such as pre processing, storage,lighting etc

    Community Services

    Most demanding community services and season wise peakconnected load

    Who will own/pay for these services

    Cost of maintenance/up-gradation

    An example: Revised load scheduling

    As Table 10 suggests, the peak load in order to meet the requirements ofthe people in Shyampur is 19.77 kW. Since this figure also reflects certainmotorized loads, which require a higher starting current, the plant

    capacity to meet the load must be about 30 kW.

    This leads us to the questions of (1) whether this (30 kW) should be thereal size of the plant, and (2) whether the load requirement can bereduced. For answers, we must first inquire into the reason behind thehigh peak load. And, the reason is that a rice huller and a flour mill of 7.5hp each run in the evening at a time when other loads are alsooperational. This leads us to yet another question of whether it isnecessary to run these machines simultaneously along with the otherloads.

    In most cases, either of the two would be running at any point of time. Forinstance, if there are more than 810 pump sets in a given village, it isadvisable to run them in batches.

    Pumps can be split in two batches and each batch can be run at a timewhen the load on the power generating system is minimal. Hypothetically,load scheduling could also have been done in a manner in which the loadscould be distributed throughout the day, thereby reducing the load on thepower-generating unit. (Table 11). Table 11 establishes the following facts

    The peak load is 16.79 kW.Load rescheduling has reduced plant capacity size from 19.77 kW to 17

    kW.Oil expellers operate when the agriculture period is over.This does not include motorized load, hence the total load is 14 kW for

    solar. In this scenario, the required plant size would be of 25 kW, takinginto account operation of 68 hours, three days of autonomy, and 80%system efficiency.The price includes all kinds of costs including energy plantation.

    Load as per need (Table)

    Revised load scheduling (Table)

    http://www.k4rd.org/e-table10.pdfhttp://www.k4rd.org/e-table11.pdfhttp://www.k4rd.org/e-table10.pdfhttp://www.k4rd.org/e-table11.pdf
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    Based on the requirement found out in Step 2, the total peak load can beassessed.

    Distribution However considering fund and technology limitations anddemand-supply gap (i.e. peak/off peak demand) the following aspects

    should be cross checked carefully before developing load scheduling planso as to finalize the distribution strategy. Distribution strategy is not onlyinfluences the investment but also influence line losses andperformance/life of the energy consuming appliances. Under aboveconsideration the implementer must collect the following information andplot them in the most appropriate site (village) layout to optimize thedistribution strategy.

    Generation process:Power generation is a factor of the technologybeing planned for the respective DDG project. However considering

    variation in demand and supply conditions the following aspect should becross checked carefully before scheduling seasonal and daily energygeneration

    o Peak demand under the following condition Season wise, area wise, crop wise, soil type wise irrigation demand

    Season wise present and potential energy demand for enterprise

    Present and most likely domestic energy demand

    Present and most demanded community energy services such as streetlight, lights on temple, drinking water, light for school / anganwadi,post office, panchyat office etc

    o Present energy supply under following conditions: The

    implementer should also understand the present energy servicepractices for various kinds of services namely community,domestic, irrigation and enterprises. The implementer should alsocollect detailed information regarding the following 4 kinds ofenergy services. Implementer need to follow the various datasheetformat(see codes) to collect and update data base

    Distribution Processes

    o Assured Loads: The implementer must have a list of assuredloads. Assured loads are those, whose

    Energy consumption & need pattern is regular (on daily /seasonally basis)

    Paying capacity/willingness is assured

    o Less assured loads:The implementer must have a list of lessassured loadsLess assured loads are those, whose

    Energy consumption & need pattern is not regular due tovarious un-predictable natural/social factors

    Paying capacity & willingness to pay is conditional

    o High capacity loads:The implementer must have a list of high

    capacity loads particularly 3 phase single point and single phaseclustered loads, which do have higher off loading potentials toensure high plant load factor (PLF). The role of implementer is to

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    set priority while developing load management plan the powerplant should runs at peak load condition as well as for minimumduration. Also please mark these load points/cluster in the sitemap.

    o Low capacity loads: The implementer must have a list ofinfrequently used low capacity loads (3 phase or single phaseisolated loads), which have low off loading potentials and whichhardly have any impact in plant load factor (PLF). These loads areuseful to utilize unused electricity. The implementer can plan tohave either package energy services or temporary wiring to ensureenergy supply. The implementer is to see how to fulfill this type ofenergy needs to earn revenue without investing much ontransmission and distribution lines. As and when these loads pointswill start behave like assured load or high capacity loads furthergrid extension will be planned accordingly.

    To find out the electrical energy demand of the village, we should knowthe following.

    What is energy used for? Is it used to run lights, fans, TVs, irrigationpump sets, etc.?

    How many (the number) such devices are used in the village?

    What is the rated power (in W [watts], hp [horse power], or kW) ofthe device being used in each application? For example, a light bulbmay be of 60 W, a tube light of 40 W or a CFL (compact fluorescentlamp) may be of 11 W.

    How many such devices are likely to be used by each category of

    users? How many hours in a day will each device be used?

    How many days in a year will each device be used?

    The current and future needs of the village community can be assessed onthe basis of survey observations.

    In general for each deviceConnected load in watts = (number of households and shops using thedevice number ofdevices per household and shop rating of device in watts)

    Connected load in kW = connected load in watts/1000

    For example, to run a light, = (100 households 2 lights per connectedload in kW household 60 W per light) / 1000 = 12 kW

    Demand in kWh/year = (connected load in kW hours of operation perday days ofoperation per year)

    For example, to run a light, = (12 kW connected load 6 demand inkWh/year operation hours per day 365 operation days per year) = 17520 kWh/year

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    Estimation of Load Demand and Energy Demand

    4.1 Estimation of load:

    4.1.1 A. No. of households No. :

    Average Load

    KW

    Total load ______________ kW

    Average operational hours-

    4.1.2 B. No. of streetlights No. :

    Average Load

    KWTotal load ______________ kW

    Average operational hours-

    4.1.3 C. Non-domestic / Productive load No. :

    Average Load

    KW

    Total load ______________ kW

    Average operational hours-

    4.1.4 D. Common facilities (Total load for Schools,

    Public health centres, Panchayat Bhawan,

    Community buildings, Religious Loads etc.)

    Total load ______________ kW

    4.1.4.

    1

    Schools load No. :

    Average Load

    KW

    Total load ______________ kW

    Average operational hours-

    4.1.4.

    2

    Public health centres load No. :

    Average Load

    KW

    Total load ______________ kW

    Average operational hours-

    4.1.4.

    3

    Panchayat bhawans load No. :

    Average Load

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    KW

    Total load ______________ kW

    Average operational hours-

    4.1.4.

    4

    Community buildings load No. :

    Average Load

    KW

    Total load ______________ kW

    Average operational hours-

    4.1.5 E. Any other load (Specify) No. :

    Average Load

    KW

    Total load ______________ kW

    Average operational hours-

    4.1.6 F. Total load (A+B+C+D+E) Total load _______________ kW

    4.2 Nos. of operational hours per day

    (Min. 6-8 hours/day)

    Total hrs ____________ per day

    4.3 Anticipated Peak Load _______________ kW

    4.4 Attach hourly load curve

    4.5 Suggested DDG capacity

    (1.5 x peak load as per load curve)_______________ kW

    4.6 Estimated Annual Energy demand for 5 years:

    4.6.1 a. Annual Energy Demand for 1st Year

    (Covered area as per load curve x 365)

    _______________ kWH

    4.6.2 b. Anticipated annual %age increase inenergy demand

    _______________ %age

    4.6.3 c. Annual Energy Demand for 2nd Year (a +

    b%) #

    ________ kWH

    4.6.4 d. Annual Energy Demand for 3rd Year (c + b

    %) #

    ________ kWH

    4.6.5 e. Annual Energy Demand for 4th Year (d + b

    %) #

    ________ kWH

    4.6.6 f. Annual Energy Demand for 5th Year (e + ________kWH

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    b%) #

    4.6.7 Total Energy Demand for 5 years

    (a+c+d+e+f)

    ________ kWH

    4.7 Suggested DDG capacity = annual energy

    demand for 5th year / (365 days x nos. of

    operational hours per day)

    _______________ kW

    4.8 Proposed DDG capacity (among 4.5 and 4.7

    which ever has higher value) _______________ kW

    4.9 Generation voltage (Mark ) (a) 440 V, 3 phase

    (b) 220 V, 1 phase

    # Next annual Energy Demand would be current annual energy demandplus the anticipated %age increase in energy demand

    Existing Energy Consumption

    3.1 Existing energy consumption sources, quantity, and prices paid

    for them

    3.1.1 Domestic (lighting)

    Type of Fuel Used

    Source

    Quantity (Lts)Hours of use

    Time being used

    Season (Months being used)

    Total Nos. of households

    Average Rs./month spent by household

    3.1.2 Domestic (lighting) (Solar)

    Type of Fuel Used

    Source

    Quantity (Lts)

    Hours of use

    Time being used

    Season (Months being used)

    Total Nos. of households

    Average Rs./month spent by household

    3.1.5 Domestic (entertainment / TV / Music

    system / Radio) (battery / solar)

    Type of Fuel Used

    Source

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    Quantity (Lts)

    Hours of use

    Time being used

    Season (Months being used)

    Total Nos. of households

    Average Rs./month spent by household

    3.1.6 Non-domestic/productive (Diesel)

    Type of Fuel Used

    Source

    Quantity (Lts)

    Hours of use

    Time being used

    Season (Months being used)

    Total Nos. of households

    Average Rs./month spent by household

    3.1.7 Any other (Specify)

    Type of Fuel Used

    Source

    Quantity (Lts)

    Hours of use

    Season (Months being used)

    Time being usedTotal Nos. of households

    Average Rs./month spent by household

    3. 2 Willingness to pay for monthly energy

    bill(Rs. / month) %age willing to

    pay

    30-40

    40-60

    60-80

    80-100

    >100

    The typical uses or applications of energy in a rural area are as follows.

    To light houses

    To run TVs, tape decks, etc. (entertainment)

    To run fans in houses especially in the summer months

    To run mixers, domestic flour mills, etc.

    To run chaff cutters

    To light streets, schools, panchayat ghar, public health centres, etc.(community load)

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    To run irrigation pump sets

    To run flour mills and rice hullers, etc.

    To run lights and fans in commercial establishments like shops and

    godowns

    To pump drinking water

    Also details of the consumption pattern, and the time of day and theseason of the year when energy is used for particular purposes should becaptured.

    Step 4: Resource management

    In this step project implementer should know detailed statistics of all type

    of resources which the project will consume during the execution of

    project to develop all necessary components (infrastructures and facilities)

    and also to maintain sustain operation. Project implementer should alsovisualize the possibility of value addition of locally available natural

    resources and agro produces through the use of project outputs (e.g.

    energy and energy services). The following aspect of resources should be

    recorded & consolidated

    Materials:

    Various sources of input resources necessary for energy generation

    such as woody biomass, agro residue, organic waste, sun light, water,wind etc (quantity available) (obtained from baseline surveys)

    Resource costing (Cost of raw material per kg) (obtained from baseline

    surveys)

    Resource processing (collection, storage & utilization of raw material-

    strategies need to be developed for the same)

    Seasonality availability of these inputs (detailed seasonal charts with

    resource availability for each season need to be prepared) (obtained

    from baseline surveys)

    Risk factors due to unavailability of raw material (need to be identifiedby the implementer)

    Alternate resources and their sources (need to be identified by the

    implementer)

    Water resource availability (source & seasonality) (obtained from

    baseline surveys)

    Possibility of generating such resources in future eg plantation activity

    for bio fuel/biomass projects (need to be identified by the implementer)

    Formulas that can be used for calculating the same are:

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    Total Quantity of Resource Available=

    Financial:

    Available assured finance from various stakeholders along with their

    non-negotiable clauses

    Investment gap and possible source (need to be identified by the

    implementer)

    Villagers economic profile and expenditure pattern with seasonality

    Various Govt. schemes

    Human:

    Available resources with their roles and skill/knowledge sets

    Skill gap and their requirement in different project phase

    Availability of un/skilled, women / men power in project village and

    nearby areas with their wage rate

    Contact details of local contractor; fabricator; NGO, SHG, CIG,

    consultant/ trainer and other institutes those who can undertake sub-

    contract

    Contact details of various opinion leaders, related Govt. officials such

    as sarpanch, DRDA staff, bank manager, DIC officers etc who can

    facilitate the implementation process

    In this step an assessment of the various sources of energy available in

    the village is carried out. It covers the following aspects.

    Identifying the different sources of energy in the village

    Estimating the current production of the resource

    Estimating the current consumption of the resource

    Let us now then assess the resources required for all technologies

    employed

    to generate energy from renewable sources of energy, such as the

    following.

    Biomass-based power generationSolar-related technologies

    Mini/micro hydro technologies

    Bio-diesel applications

    Outputs of resource estimationAt the end of this step, you should have information about the following.Information about the resource availability for different sources of energyAn estimate of the energy generation potential for each source of energy

    availableAn assessment of whether the resource available is sufficient to generate

    energy to meet the needs assessed.

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    Biomass-based power generation

    There are generally two forms of biomass in a typical village.

    Crop residue

    Firewood (wood from trees)

    Forest reserves should not be taken into consideration here, as felling of

    trees is illegal in many places. However, if there is an energy plantation

    available in a village for captive use, it can be taken into consideration.

    Woody biomass

    An assessment of the existing stock of biomass should be carried out to

    find the sustainable yield from the growing stock at the village level. To

    estimate the biomass for different land categories, the quadratic method

    is adopted.

    Volume is measured through either of the following equations.

    V = a + b g2 h

    orV = a + b d2 h

    where,

    V = volume in cubic metres

    h = height in metres

    g = GBH (girth at breast height) in metres

    d = DBH (diameter at breast height) in metres

    And, a and b are regression constants.

    The annual sustainable yield (Y) is:

    Y = 2 GS / R

    where,Y sustainable yield (tonnes/y)

    GS = growing stock

    R = rotation of growing stock in the village

    General volume table

    The general volume table (Table 13) is used if the regression equation of

    particular trees is not known. In this case, the girth of trees must be

    measured and its corresponding volume be provided in the general

    volume table.

    For example, in case the girth of the tree is 101 cm, it would fall in the

    third row within the girth class of 90120 cm. The last column of the same

    row shows the volume, which is 0.55 m3 (cubic metre).

    Solar-related technologies

    To estimate the availability of solar energy in an area, you would need to

    know the following.

    Number of sunny days in a year in the area

    Average number of sunlight hours per day

    Solar radiation data are generally available at the local weather data

    collection centre of the Department of Meteorology. Solar technology is

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    feasible in most parts of India. It needs at least 56 hours of sunlight per

    day for at least 250 days in a year. If an area receives the specified

    amount of sunlight, solar technologies can be used for power generation.

    There may be site-specific issues (detailed in Chapter 3 on solar

    photovoltaic), which must be taken care of before finalizing the

    technology.

    Hydro-based technologies

    To assess hydropower potential, you should know the following.

    The quantity of water flowing at the point of intake

    The flow (To estimate the flow there are two aspects that need to be kept

    in mind, that is, lean [minimum] flow and peak [maximum] flow [when it

    is] and the period of the year when the flow is low and high.)

    The height and speed of water

    Bio-diesel applications

    To estimate the resources required to produce bio-diesel, you should know

    the following.

    As mentioned in Chapter 6 on biofuel technology, bio-diesel can be

    produced from seeds of different varieties of plants.

    Oil-yielding plants may occur naturally or they may be grown on farms,

    bunds, waste lands, and the like.

    Bio-diesel can be produced from non-edible oilseeds such as Pongamia

    pinnata (Karanj, Honge), Jatropha curcas (Ratan Jot), Hevea braziliensis

    (Rubber), Madhuca indica (Mahua), and Shorea robusta (Sal).Information on oil-yielding species, which occur naturally or which can be

    cultivated in the region, can be obtained from local forestry offices.

    There are numerous plants that can yield oil; however, the oil-yielding

    capacity should be in the range of 25%35% of the seed weight; otherwise

    extraction of oil is not viable.

    Farmers should find out if oil-yielding seeds are available in a nearby

    market. If yes, then the cost for the same must be found out. As per the

    Planning Commission report of the Committee for the Development of

    Biofuel, the cost of oil-yielding seeds is in the range of 14.9816.59

    rupees/ litre, based on the assumption that the seed contains 35% oil, and

    91% 92% of the oil can be extracted.Farmers should also know the yield for different varieties of oil-yielding

    plants. An estimate of the average yield of Jatropha curcas is given in

    Table 14.

    Design details of the power plant and estimated costs

    This section provides the system design details, including energy

    plantation requirements, the intended energy services as also any value

    addition in terms of setting up micro enterprises that may be establishedon account of availability of electricity. All the costs of the project have to

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    be estimated to cost of completion. All the cost figures mentioned in this

    section should be Estimated Cost of Project Completion

    4.6 Technological options

    Various technologies available for village electrification project aremicro hydel power plant, wind power plant, bio-fuel based DG sets,

    Biogas based power generation plant, Solar photovoltaic power

    plant and Biomass based gasifier coupled with 100% producer gas

    engine.

    In view of the availability of renewable energy sources in the

    village, as mentioned in earlier chapter, three technologies seem

    feasible for the proposed electrification project i.e. Solar

    Photovoltaic Power Plant, Biofuel based DG sets and Biomass basedgasifier coupled with 100% producer gas engine.

    4.6.1 Gasification Technology

    Low grade biomass (ipomea, subabool, lantana) availability in the

    village offers immense potential for power generation. The option

    has following advantages & disadvantages:

    Advantages

    Low capital cost

    Easy availability of raw material

    Feasibility for greater load profile

    Disadvantages

    Complex Process

    Gas quality relates to the quality of raw material

    In view of the facts mentioned in earlier paragraphs, the

    gasification technology coupled with 100% produce gas engine isthe most suitable and recommended for electrification of village

    Lalaka Pura.

    4.6.1.1 Technology Description

    Biomass Gasification process is a thermo-chemical process which

    basically converts solid biomass into combustible gas mixture,

    generally known as producer gas. The process involves partial

    combustion of biomass which occurs when air supply is less thanthat required for complete combustion of biomass. Solid biomass

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    fuels, which are usually inconvenient to handle and have low

    efficiency of utilization, can thus be converted into quality gaseous

    fuel. This gas is further converted into electrical energy in a

    biomass thermal electric power plant and transmitted to load center

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    4.6.1.2 Technical Description of the Plant

    The technical specification of the system is given below:

    Table 4.19: Gasifier Specification for 20 kW (2 x 10kW) System

    S.No. Description Specification

    Gasifier Technology Standardized or patented

    (IISc/TERI/Ankur)

    Make OVN/Aruna/Sun Technique/Ankur/Teri

    Gasifier Rating 2 x 14 kg/hr system

    Type of Gasifier Open top downdraft Gasifier

    Turn Down Ratio 4:1 (Plant can be operated up till 25% of

    load)

    Quality of Gas Produced Very high quality CO: 20 + 1%, H2: 20

    + 1%,

    CH4 : 3 + 1% CO2 12+ 1% and N2

    Tar and particulate

    concentration in the gas

    Tar and particulate level is less than 25

    ppm

    which ensures trouble free operation &

    performance of the engine

    Biomass Woody biomass or briquettes (of other

    biomass) with ash content less than 5%

    & moisture content less than 15%

    Biomass energy conversion

    efficiency at maximum ratedour put

    80 %

    Calorific value of gas

    generated from Gasifier

    4.6 + 0.2 MJ/kg

    10 Maximum connected load

    required for operation of

    Gasifier, burner and auxiliaries

    8-10 %

    Material of construction of

    the Gasifier

    Reactor consisting of MS shell with fire

    brick lining, hot gas jacket of SS 316 in

    the upper part of reactor, Ash

    extraction system with MS cuter shell

    and SS screw conveyor, Top water seal,SS Air nozzles, SS ducting & MS

    Structural. Hot cyclone SS-316L with

    MS outer jacket for heat recovery with

    Bottom collection-bin. Scrubbers (SS-

    304) with water seal at the Bottom.

    Mist eliminator (SS-304), Moisture trap

    (SS-304)

    Table 4.20: Engine

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    1. Gas Engine Simpson / Cumiins/ Equi

    /Prakash

    2. Type of cooling Water cooled engine

    3. Speed of Engine 1500 rpm

    4. Specific fuel consumption 1.2+0.2 kg/kW hr at rated load5. Type of Governor Electronic Imported Governor

    6. Starting system battery Battery starting with automatic

    charge

    4.6.1.3 Safety features of the Gasifier system

    As the gasifier system is under suction, the possibility of gas leaking

    into the ambient from most of the system elements could be totally

    ruled out. However, there is possibility of air leaking into the system

    thus diluting the gas. This could have two effects, firstly this will

    lead to lower diesel replacements, and secondly there could be

    flame travel backwards in the event of start-up i.e. at the time of

    lighting or torching the gas in the flare. Hence water bubbler is

    provided upstream of flare to prevent any flame travel backward

    into rest of the system elements. Thus the system appears safe as

    indicated in the technical specifications of the gasifier system.

    4.6.2 Biogas

    Biogas is a clean, non-polluting and smoke & soot free fuel

    generally burns with blue flame. Biogas is formed by

    microorganisms decomposing biomass in the absence of oxygen, a

    process called anaerobic digestion. This gas can be used as a fuel in

    an internal combustion engine for motive power or used as a

    cooking / lighting fuel in village homes.

    Biogas, the gas produced from animal excreta, biomass etc. seemsto be the best option for meeting the domestic fuel requirement of

    rural area due to following reasons:

    Almost all households in village have cattle population.

    Biogas technology offers the optimal utilization of the animal

    excreta by producing gas for meeting the domestic energy needs

    and good quality organic manure for agriculture.

    Biogas technology is indigenous and easy to operate & maintain. It

    doesnt need any specific qualification/expertise for operation &

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    maintenance. Hence the rural population can easily operate &

    maintain the same.

    It is clean and green fuel, without smoke or odor, and is easy to use

    option for the women in the household.

    Fuel wood use causes lungs and eye diseases among the womenand children in the houses due to smoke whereas biogas, being

    smokeless fuel, protects them from this life-threaten diseases.

    4.6.2.1Technical details of biogas plants:

    A typical biogas plant is comprised of a digester in which the slurry

    (dung mixed with water) is fermented, an inlet tank used to mix the

    feed and let it into the digester, a gas holder/dome in which the

    generated gas is collected, an outlet tank to remove the spent

    slurry, Gas Cleaning System and Engine with alternator

    Technical parameters of the Biogas unit are given in the following

    chart:

    Table 4.21 Technical Parameters of 1 m3 Biogas Unit

    Designation Characteristics Cattle dung (Gobar)

    Daily biogas required (per selected family) 2-3 cubic

    Daily feed 45-70 kg (fresh)/day

    Water required to slurry 45-70 lits/day

    Daily effluent 90-150 lits

    Solids Retention time 30-35 days

    Gas delivery pressure 10 cm water column

    Methane content 45 55%

    There are various biogas plant models available in the market. All

    these models are based on one of the two basic designs available,

    floating metal drum type, fixed masonry dome type. For the

    proposed project, we recommend installation of Deenbandhu

    model (fixed/floating dome) of biogas plant.

    Deenbandhu model was developed in 1984, by Action for Food

    Production (AFPRO), a voluntary organization based in New Delhi.

    Deenbandhu has probably been the most significant development

    in the entire biogas programme of India as it reduced the cost of

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    the plant to almost half that of KVIC model, and brought biogas

    technology within the reach of even the poorer sections of the

    population.

    4.6.2.2 Energy Efficient Devices

    For families not having adequate cattle population, it is proposed to

    disseminate Improved Chulhas and use of charred briquettes in

    remaining 98 houses of the project village. These ICs will be made

    locally as per the specifications to be designed by Development

    Alternatives. However TARA Nirman Kendra (TNK) will supply this

    those ICs as per order.

    4.6.2.3 Technical Specifications of Oil Expeller

    Technical specifications of the oil expeller proposed to be installed

    are as under:

    Table 4.22: Technical Specifications of Oil Expeller

    Designation Characteristics Cattle dung (Gobar)Processing Capacity 30 to 50 kg/hour

    (subject to change according to thematerial)

    Dimension 110010001000mm

    Net Weight 200 kg

    Gross Weight (including belt-cover, motor, common

    steel base)

    300 kg

    M3 1.52Required Power 3HP(2.2kw)

    Table 4.23: Standard Accessories & Spare Parts:

    Worm Shaft 1 pcCage Bars 1 set (16pcs/set)

    Taper Rings 2 pcs

    Spacers 3 pcs

    Spanner 1 pcAngle Wrench 1 pc.Driver 1 pc

    Oil Receiving Plate 1 pc

    4.7 Maintenance schedule for different energy

    production /consumption systems:

    The VEC will follow the instruction as given by the respective

    technology suppliers. Record of all maintenance (as per Standard

    Operating Procedure-SOP) work will be maintained for furtherreference. Necessary training and capacity building of all operators

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    will be provided to reduce chances of operational/accidental

    breakdown.

    Energy plantation

    The main source of power generation in the proposed biomassbased generation plant is woody biomass. On the basis of assessment

    made during household survey it is observed that every household collects

    and consumes 10-12 kg wood per day/household. The villagers have

    agreed to provide this much quantity of wood for the proposed power

    plant if electricity is provided to them. Besides this, there is around 12-14

    Ha waste land out of which the VEC will go for energy plantation to ensure

    un-interrupted biomass supply necessary for running the power plant for

    desire hours. The PIA will also nearby villages to sale their excess biomass

    to VEC, to earn some revenue.

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    2.2.8 Budget estimation

    Total cost of electrification project of village Lala Ka Pura is

    estimated to be Rs.49,12,775 following major heads:

    Fig in Rs.

    Estimated capital cost for gasifier plant (including AMC); civil shed

    and one flour mill as IGU.

    18,72,500

    Cost of other energy providing systems viz. energy plantation;

    distribution network & household wiring; biogas plants; street lights

    and ICs

    16,56,000

    Optional expenses being cost of one oil expeller 1,40,000

    Capacity building costs 2,00,000

    Execution and administration cost 10,44,275

    Total cost 49,12,77

    5