My presentation at N.P.T.I

transcript

WELCOMETO

PRESENTATION

FORMULATION OF DPRON

By:SANTOSH KUMAR SINGHASSTT. MANAGER(TECH.)JAL POWER CORPORATION LTD.

OBJECTIVE OF PRESENTATION

“AWARE OF THE PREPARATION OF DETAILED PROJECT REPORTS FOR HYDRO ELECTRIC

SCHEMES, THEIR ACCEPTANCE AND EXAMINATION FOR CONCURRANCE.”

REQUIREMENT FOR CONCURRANNCE OF HYDRO ELECTRIC SCHEME

• Provision under the Electricity Act,2003

• Capital expenditure exceeding which concurrence required

PREPARATION OF DPR

• General guidelines laid down by Authority.

• Structure of DPR

• Submission & Acceptance of DPR

• Examination and Concurrence of DPR

GENERAL GUIDELINES LAID DOWN BY AUTHORITY

Scheme aims at best ultimate development of the River

Designed based on optimum benefits, not conflict with irrigation point of view.

Scheme takes into account the development of water resource change over the period.

Location of all parts of scheme be optimum.

Scheme either included in N.E.P. or generation of Power at reasonable tariff.

Prepared after essential site surveys and investigations are completed.

STRUCTURE OF DETAILED PROJECT REPORT

• Introduction• Justification of project from

power supply angle• Basin Development• Inter-state//Inter-national

Aspects• Survey & Investigation• Hydrology• Reservoir• Power Potential & Installed

Capacity• Design of Civil Structure• E&M Design

• Transmission of Power & Communication facilities

• Construction Programmes (PERT & BAR e.t.c.)

• Project Organization• Infrastructure facilities• Environmental & Ecology

Aspects• Cost Estimates• Allocation of Cost• Economic Evaluation• Future Utilization of Buildings• Reaccomodations• Clearance

• INTRODUCTION– Types of Projects.– Location of the project area including Long. & Latit.– Access facilities & communication systems.– Climate Condition.– Description of Topography, physiographic and geology.– Historical background in respect of earlier 7 present proposal of the project.– Alternatives studies carried out for majors components and choice of

project parameters.– Natural resources of state /Region.– Socio-economic aspects.– Land requirement for project construction- forest/village/ agriculture lands

and area of submergence.– Population affected.– Environmental aspects.– Defense angle, if any.– Cost & benefits of scheme.

STRUCTURE OF DETAILED PROJECT REPORT CON…

• JUSTIFICATION OF PROJECT FROM POWER SUPPLY ANGLE– Demand considerations on all India/ regional basis.– Resources for power development in the region/state.– Available generating capacity in the state region from

different sources.– Peak load and energy requirement in future in all

India/region/state up to the likely date of project completion.– Likely addition to generating capacity in future in the all

India/region/state indicating power supply position with or without the project under consideration and improvement I the hydro-thermal mix.

• BASIN DEVELOPMENT– The course of the river– Power potential of the river basin and stages of the

development.– Whether trans-basin diversion of waters involved.– Fitment of the scheme in the overall basin

development.– Fitment of the scheme in the power potential

assessment studies.– Effect of future upstream/downstream developments

on the potential of proposed scheme.

• INTER-STATE / INTER-NATIONAL ASPECTS– States/countries traversed by the river.– Distribution of catchment in states/countries and yields from the

catchment of state/country concerned.– Effect of the following on the project:

• a) Inter-state agreement on sharing of waters, sharing of benefits and costs, acceptance of submergence in the upstream state(s), if any.

• b) Inter-state adjudication, if any• c) Interstate aspects of territory, property etc. coming under

submergence, oustees rehabilitation, compensation etc.• d) Any other aspect of the project involving inter-state problems• e) Inter-national aspects, if any

• SURVEY & INVESTIGATION– Topographical survey of various components of project.– Archaeological surveys in the reservoir area.– Mineral surveys in the catchment areas.– Right of way surveys for the reservoirs.– Communication surveys.– Geology & geo-technical features.– Seismicity.– Foundation investigations of different

structures/components of the project indicating boreholes details, soil/rock strata etc.

– Construction materials investigations– Hydrological and meteorological investigations

• HYDROLOGY

– Hydrological inputs for the project planning

– Effect of project development on hydrologic regime

– Hydrologic studies for water availability, design flood, design flood levels, sedimentation etc.

• R E S E R VO I R– Catchment area, annual run-off, submergence, suitability of soil/rock, dead storage level– Sedimentation data and studies– Fixation of storage and reservoir levels, { maximum water level (MWL), full reservoir level (FRL), minimum

draw down level (MDDL) }, flood cushion etc.– Life of reservoir in years with basis– Capacities at MWL, FRL, MDDL, Dead Storage level etc. at project planning stage and after 25, 50, 75 and

100 years or more of operation– Water tightness of the reservoir– Annual losses (month-wise) (evaporation, seepage etc.)– Flood absorption on regular/flash flood– Effect on subsoil water tables in the adjoining areas upstream and downstream of the dam– Seismic characteristics and effects due to construction of dam– Reservoir rim stability– Area of submergence– Land acquisition– Recreation facilities– Pisci-culture– Other facilities, if any– Need and recommendations for soil conservation measures in the catchment.

• POWER POTENTIAL & INSTALLED CAPACITYRun-off H. E. Scheme

• The first step is to compute 90% dependable year :– Obtain 10-daily hydrological inflow series in m3/sec for all hydrological years, year-

wise– Calculate unrestricted energy generation in MUs.– Arrange unrestricted annual energy generation in descending order– 0.9(n+1)th year is the 90% dependable year, where n is the number of years for

which hydrological inflows data is available• Fixating the installed capacity :

– Calculate firm power available based on average power generation during the lean months flows in a 90% dependable year.

– Consider a number of alternatives of installed capacities in suitable steps say 5%, for load factors say about 40% down to about 15%.

– Compute incremental energy generation (Δ KWH) for every incremental MW (Δ MW) and plot result on a graph.

– Installed capacity is fixed at a value where the fall in the graph is sharp.– B/C ratio and incremental benefit cost ratio (ΔB/ΔC) is also considered for fixing the

installed capacity. An alternative for installed capacities which provides maximum net benefit (B-C) and ensures incremental (ΔB/ΔC) higher than unity is considered optimum

• POWER POTENTIAL & INSTALLED CAPACITYConventional H.E. Schemes– Type of power plant i.e. run-of-river (with or without

diurnal storage) or storage type.– Assessment of power potential (firm power and 90%

dependable energy, secondary energy)of the scheme– Studies for optimization of storage, FRL, MDDL, lean

period capabilities etc.– Month wise, 10 daily availability of power and energy,

peaking capabilities etc– Optimization of installed capacity and unit-size studies

carried out may be discussed.

• POWER POTENTIAL & INSTALLED CAPACITYPumped Storage Schemes– Type of scheme – daily or weekly regulated– Optimization of storage capacity, FRL, MDDL etc. of

upper and lower reservoirs - Studies carried out may be discussed

– Optimization of installed capacity and number of units –Studies carried out may be discussed

– Operating criteria of the project in generating and pumping mode, availability of pumping energy for pumping operations over the years.

– Cycle efficiency of the scheme

• DESIGN OF CIVIL STRUCTURES– Structures & layout– Geology, seismicity and foundations– Alternative studies carried out for selection of site and type of

structures / dam / barrage / weir, regulators, water conductor system, power house etc.

– Design flood and sedimentation studies– River diversion arrangements– Construction materials– Details of Model of studies– Design of dam / barrage / weir– Design of intake, power channel/tunnel, balancing reservoir /

fore-bay, surge shaft, penstocks, power house, tailrace, switchyard

• ELECTRICAL AND MECHANICAL DESIGNS– Turbine / Pump Turbine

(i) Type(ii) Operating heads & outputs(iii) Specific speed and synchronous speed(iv) Setting of turbine/pump turbine(v) Speed & pressure rises

– Generator / Generator Motor(i) Type of generator/motor,(ii) Outputs, power factor, Generation Voltage(iii) Class of insulation(iv) Type of Cooling(v) Generator inertia(vi) Starting method ( Pumped storage schemes)

• ELECTRICAL AND MECHANICAL DESIGNS– Generator – transformer connections– Main step-up transformer– Switchyard equipment– Single line scheme– Control & protection equipment– Auxiliary Mechanical services

• EOT Crane• Electrical lifts and elevators• Workshop equipment• Test Laboratory• Telemetry• Ventilation & air conditioning• Fire protection• Cooling water

• ELECTRICAL AND MECHANICAL DESIGNS– Auxiliary Electrical services• A.C. auxiliary services• D.C. auxiliary service• Cables

– Transport limitations• Maximum limiting dimensions (L x W x H) of packages

for transport• Maximum limiting weight of the package which can be

transported

• TRANSMISSION OF POWER AND COMMINUCATION FACILITIES– Transmission of power

• Consent / Agreement signed between the Generating company and the purchaser(s)

• Letter of Consent from the appropriate Transmission utility to provide evacuation system,

• Details of the existing and proposed system• Target date of completion of the proposed system• Letter of Comfort from the Transmission Company to enter into a

back to back

– Telecommunication aspects

• CONSTRUCTION PROGRAMME & PLANT PLANNING

– PERT chart giving details of activity-wise construction programme for each of the major components of the civil, electrical and mechanical equipment

– Bar charts showing the construction programme quantity-wise, item-wise and year-wise target of construction

– Various alternatives for construction programme and proper justification of adopted programme

– Programme for construction of tunnel / channel

• PROJECT ORGANISATION

– Proposed set up for the project

– Details of the proposed organization, No. of staff and expenditure (year-wise)(i) For civil works(ii) For electric and mechanical works(iii) Administrative & financial set up(iv) Others

– Pre-construction organization

– Consultants

• INFRASTRUCTURAL FACILITIES– Access roads– Rail head– Port facilities, As applicable– Construction power requirement– Power supply facilities– Telecommunication facilities required during construction and

after completion of the project– Project colonies / buildings– Workshops– Drinking water facilities– Others

• ENVIRONMENTAL & ECOLOGICAL ASPECTS– Status of Environmental clearance– Status of Forest clearance– Cost of proposed remedial & mitigative measures

• Rehabilitation measures• Compensatory afforestation• Disaster management plan• Restoration of land in construction areas by filling, grading• Control of aquatic weeds in submerged areas to provide improved

habitat for aquatic life• Measures to salvage/rehabilitation of any rare or endangered

species of flora and fauna• Catchment Area Treatment• Details about Net Present Value of forest land

• COST ESTIMATESo The Civil Cost Estimates of the project shall be prepared as per “Guidelines for

preparation of estimates for the river valley projects” issued by CWC and Indian Standard IS: 4877 “Guide for Preparation of Estimate for River Valley Projects”.

o The estimates of a Hydro Electric Scheme shall be divided under the following heads:

• A. Direct Cost• I. Works• A - Preliminary• B - Land• C - Works• J - Power Plant Civil Works• K - Buildings• M - Plantation• O - Miscellaneous• P – Maintenance during construction• Q - Special T&P• R - Communications

• COST ESTIMATES– S - Power Plant and Electro- Mechanical system– X - Environment and ecology– Y - Losses on stock

• Total I-Works– 1. Establishment– 2. Tools and Plants– 3. Suspense– 4. Receipt And Recoveries

• Total (A) - Direct Cost• B. Indirect Cost

– i. Capitalization of Abatement of Land Revenue– ii. Audit and Account Charges

• Total (B) - Indirect Cost• Total Cost (A+B)

• ALLOCATION OF COST– The details in respect of allocation of cost for each

component of the Multipurpose Project shall be based on the cost cleared by Technical Advisory Committee of MOWR. The details in this regard may be clearly spelt out under this Chapter.

– In case of projects involving flood moderation, it may clearly be indicated whether the cost of flood moderation as cleared by CWC shall be borne by the concerned beneficiary State.

• ECONOMIC EVALUATION– Phasing of expenditure half yearly– Interest during construction (IDC)– Cost of generation at power house bus bars (with IDC)– Sale rate of energy (with IDC) (with and without free power to

home State)– Levelised tariff (with and without free power to home State)– Comparison of cost of generation with alternate source of

generation in the in state/region.– Project estimated cost and financial package summary shall be

submitted

“Calculations Shall be carried out as per the tariff order of the Appropriate Regulatory Commission.”

• FUTURE UTILISATION OF BUILDINGS

– Details of buildings to be constructed to meet peak requirements of the project

– Departmental requirement of buildings after completion of the project

– Requirement of the buildings by other agencies

– Utilization of surplus buildings

• RECOMMENDATIONS

– Economic justification of the project

– Socio-economic and other benefits

• CLEARANCES / INPUTS– Authenticated Copies of the following

Documents/Certificates/Clearances are required to be submitted to CEA for concurrence.• Letter from the Registrar of Companies indicating that the company has been

registered as a Generating Company under Indian Companies Act, 1956.• Article of Association indicating that generation is one of the objectives of the

company.• Letter from Competent Government authorizing the company to establish,

own and operate generating power plant.• Land availability certificate from State Revenue Authorities• Water availability certificate from State Irrigation Department/ concerned

agency.• Clearance of Ministry of Water Resources/ Central Water Commission• Defense clearance(If, necessary).• Recommendation of the State Govt. on the project cost in case of private

projects.• Any other Statutory clearance from Ministries / Departments / Organizations.

SUBMISSION & ACCEPTANCE OF DPR

•Submit the DPR to the Authority for its concurrence as under Sec. 8 of E.A.2003.•4-copies submit to Sec. of C.E.A. If DPR is correct and complete then after 2- weeks DPR again be submit with 21-copies along with one-soft copy •CEA/CWC/GSI shall decide in another 2-weeks whether the details furnished in DPR are adequate or not.

POWER PROJECTS

•It involves Drinking water, irrigation, power, flood control, navigation etc. so submit to C.W.C. of M.O.W.R.(T.A.C. ). •The Flood moderation aspects parts submit to C.W.C./M.O.W.R.

MULTI-PURPOSE PROJECTS

EXAMINATION AND CONCURRANCE OF DPR

• Examination– Appraisal of DPR– Aspects to be appraised

• Concurrence– Submission of Update DPR– Information regarding Financial Closure– Time Frame for accord of Concurrence– Validity of concurrence– Transfer of Concurrence– Subsequently changes in Project parameters

• List of relevant Documents/ References– 1. The Electricity Act, 2003– 2. Indian Companies Act, 1956– 3. Forest Conservation Act, 1980 and Notifications/Resolutions by MOE&F.– 4. “Guidelines for preparation of DPRs of Irrigation and Multipurpose Projects” issued by CWC.– 5. “Guidelines for preparation of project estimates for major irrigation and multipurpose project” issued by CWC.– 6. National Electricity Plan notified by CEA– 7. Indian Electricity Sector – Widening Scope for Private Participation-Issued by Ministry of Power.– 8. Policy on Hydro Power Development issued by Ministry of Power– 9. Guidelines for “Investigation of major irrigation and hydro-electric projects” issued by CWC.– 10. CBIP – Technical Report No.19 “Life of Reservoir (1977)”

• IS 5497 : Guide for topographical surveys for river valley projects• IS 4890 : Method for measurement of suspended sediment in open rivers• IS 13216 : Code of practice for geological explorations for reservoir sites.• IS 4186 : Guide for preparation of project report for river valley projects.• IS 4877 : Guide for preparation of Estimate for River Valley Projects.• IS 5477 : Methods for fixing the capacities of reservoirs.

(Part 1-4)• IS 7323 : Method for determining evaporation from reservoirs.• IS 7323 : Guidelines for operation of reservoirs.• IS 13028 : Guidelines for overall planning of river basin.• IS 7560 : Guidelines for allocation of cost among different purposes of river

valley projects.• IS 4247 : Code of practice for structural design of surface hydro power stations.• IS 12837 : Guidelines for selection of hydraulic turbines for medium and large

hydro-electric power houses.• IS 12800 : Guidelines for selection of turbines preliminary dimensioning &

layout of surface hydro electric power houses.

• “We need to push ourselves to make as many reductions as possible in our own energy use first.. and that takes time. But we must do this quickly.. the climate will not wait for us.”-Rupert Murdoch

• "Nature reacts not only to physical disease, but also to moral weakness; when the danger increases, she gives us greater courage."-: B. Johann Wolfgang Von Goethe

THANK YOU