This document outlines the typical sections and information included in a detailed project report (DPR) for a hydroelectric scheme in India. It lists 20 sections that would be included in a DPR, such as an introduction describing the project location and context, justification for the project, hydrological and power potential studies, cost estimates, economic evaluation, and recommendations. The document provides guidance on the type of technical, financial, and environmental information to present in each section of a DPR to obtain approval and funding for a new hydroelectric project.

1. By:
SANTOSH KUMAR SINGH
ASSTT. MANAGER(TECH.)
JAL POWER CORPORATION LTD.

2. “AWARE OF THE PREPARATION OF DETAILED
PROJECT REPORTS FOR HYDRO ELECTRIC
SCHEMES, THEIR ACCEPTANCE AND
EXAMINATION FOR CONCURRANCE.”

5. 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.

6. • 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

7. • 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.

8. • 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.

9. • 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.

10. • 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

11. • 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

12. • 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.

13. – 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.

14. • POWER POTENTIAL & INSTALLED CAPACITY
Run-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

16. • POWER POTENTIAL & INSTALLED CAPACITY
Pumped 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

24. • 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

25. • 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

26. • COST ESTIMATES
o 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

27. • 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)

28. • 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.

29. • 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.”

30. • 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

31. • RECOMMENDATIONS
– Economic justification of the project
– Socio-economic and other benefits

32. • 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.

33. • 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

34. • 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

35. • 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.