---
title: "Stages of hydropower development cycle"
subject: "Hydropower Engineering"
chapter: 2
key: "semester_7/hydropower_engineering:dev-cycle-stages"
source: https://www.bctengineer.com/q/semester_7/hydropower_engineering/dev-cycle-stages
site: BCT Engineering
---

# Stages of hydropower development cycle

Hydropower Engineering · Chapter 2: Planning of Hydropower Projects

- Asked in: 2069 Chaitra, 2 marks
- Video: [What are the Stage of Hydropower Development #water #energy #generated #powerhouse #dam #electricity](https://www.youtube.com/watch?v=QAR-x4D_0Gk) — Hydropower
- Answer checked by Claude Opus 5.5 (high effort) on 2026-10-14
- Page: https://www.bctengineer.com/q/semester_7/hydropower_engineering/dev-cycle-stages
- Whole chapter: https://www.bctengineer.com/md/semester_7/hydropower_engineering/chapter-2

## Question

What are the stages of the hydropower development cycle?

## Short answer

Stages are reconnaissance (identification), pre-feasibility, feasibility, detailed engineering design, construction and commissioning, and operation and maintenance. A basin master plan may precede them; the first four are planning stages for investment decisions.

## Answer

The stages of the hydropower development cycle are:
1. **Reconnaissance (identification) study:** find possible sites and rank them.
2. **Pre-feasibility study:** compare layout options and choose the best.
3. **Feasibility study:** prove technical, economic and environmental viability.
4. **Detailed engineering design:** final design, drawings and tender documents.
5. **Construction and commissioning:** build, test and hand over.
6. **Operation and maintenance:** run the plant and monitor its performance.

Before these, a river basin master plan may be done; the first four stages are the planning stages, in which investment decisions are made.

## Check yourself

The answer's key points as multiple-choice questions, with the correct option and why.

1. What is the correct order of the first four (planning) stages of hydropower development?
   A. Feasibility, reconnaissance, pre-feasibility, detailed design
   B. Reconnaissance, feasibility, pre-feasibility, detailed design
   C. Pre-feasibility, reconnaissance, feasibility, detailed design
   D. Reconnaissance, pre-feasibility, feasibility, detailed engineering design
   Answer: D. Studies deepen step by step: reconnaissance, pre-feasibility, feasibility, then detailed design. (Key point: Order of stages)

2. What is the main task of the pre-feasibility stage?
   A. Final drawings and tender documents
   B. Compare layout options and choose the best
   C. Run the plant and monitor it
   D. Rank possible sites from maps
   Answer: B. Pre-feasibility compares layout options and selects the best; ranking sites is reconnaissance. (Key point: Purpose of pre-feasibility)

3. Which stages are called the planning stages, in which investment decisions are made?
   A. Construction and operation
   B. Operation only
   C. The first four stages up to detailed design
   D. Only reconnaissance
   Answer: C. The first four stages are planning stages, before construction and operation. (Key point: Investment decision)

## Related in Hydropower Engineering

- [Development stages and PRoR working principle](https://www.bctengineer.com/question.md?key=semester_7%2Fhydropower_engineering%3Astages-pror-working-arrangement) — Hydropower Engineering, chapter 2
- [Development cycle and detailed design studies](https://www.bctengineer.com/question.md?key=semester_7%2Fhydropower_engineering%3Adev-cycle-detailed-design-studies) — Hydropower Engineering, chapter 2
- [Development cycle; RoR layout with headrace canal](https://www.bctengineer.com/question.md?key=semester_7%2Fhydropower_engineering%3Adev-cycle-ror-layout-headrace-canal) — Hydropower Engineering, chapter 2
- [Development cycle; storage plant layout](https://www.bctengineer.com/question.md?key=semester_7%2Fhydropower_engineering%3Adev-cycle-storage-layout) — Hydropower Engineering, chapter 2
- [Hydropower Development Policy 2001 (2058 BS)](https://www.bctengineer.com/question.md?key=semester_7%2Fhydropower_engineering%3Ahdp-2001-objectives-features) — Hydropower Engineering, chapter 1, asked 4×
- [Importance of hydropower development in Nepal](https://www.bctengineer.com/question.md?key=semester_7%2Fhydropower_engineering%3Aimportance-hydropower-nepal) — Hydropower Engineering, chapter 1

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