- Asked 4/26
- 2075 Chaitra · 2+6 marks
Appraisal aspects of a hydropower project
Short answer
Appraisal is necessary to decide go or no-go, avoid wasting capital, compare alternatives, identify risks early, and give lenders confidence. For hydropower, appraise technical aspects (hydrology, geology, design), economic and financial viability, market, management, environmental and social impacts, legal issues, and risks.
Why is project appraisal necessary for initiating a project? What are the major aspects that need to be considered for carrying out the appraisal of a hydropower project? Discuss.
Project appraisal is the critical, systematic assessment of a proposed project, before commitment of funds, to judge whether it is technically sound, economically and financially viable, environmentally and socially acceptable, and worth undertaking.
Necessity of appraisal
- Helps decide whether to accept, modify or reject a project (go or no-go).
- Avoids wasting scarce capital on unviable projects.
- Compares alternatives and ranks projects for limited funds.
- Finds risks and weaknesses early, when changes are cheap.
- Checks that technical design, cost and schedule are realistic.
- Ensures economic benefit to the nation and acceptable environmental and social effects.
- Gives lenders and donors confidence; usually a condition for financing.
- Provides a baseline for later monitoring and evaluation.
Aspects for a hydropower project
| Aspect | Points to examine |
|---|---|
| Technical | Hydrology (flow duration curve, design discharge), head, installed capacity, geology, headworks, tunnel, penstock, powerhouse, turbine type, transmission line |
| Economic | EIRR, B/C and NPV, benefit of energy replacing imports, employment |
| Financial | Capital cost, cost per kW, funding mix, loan terms, tariff or PPA rate, cash flow, IRR, payback |
| Market | Power demand, evacuation, PPA with Nepal Electricity Authority, export possibility |
| Management | Developer's capacity, construction and O and M organisation |
| Environmental | IEE/EIA, minimum river flow, fish, forest, sediment, mitigation |
| Social | Land acquisition, resettlement, local benefit sharing |
| Legal | Survey and generation licence, Electricity Act, royalty, tax |
| Risk | Hydrology, geology, flood, construction delay, price and foreign exchange risk |
✓ Answer checked by Claude Opus 5.5 (high effort)
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