--- title: "300 MW reservoir project: planning to commissioning" subject: "Hydropower Engineering" chapter: 2 key: "semester_7/hydropower_engineering:reservoir-300mw-planning-to-commissioning" source: https://www.bctengineer.com/q/semester_7/hydropower_engineering/reservoir-300mw-planning-to-commissioning site: BCT Engineering --- # 300 MW reservoir project: planning to commissioning Hydropower Engineering · Chapter 2: Planning of Hydropower Projects - Asked in: 2075 Chaitra, 5 marks - Answer checked by Claude Opus 5.5 (high effort) on 2026-10-14 - Page: https://www.bctengineer.com/q/semester_7/hydropower_engineering/reservoir-300mw-planning-to-commissioning - Whole chapter: https://www.bctengineer.com/md/semester_7/hydropower_engineering/chapter-2 ## Question You are developing a 300 MW reservoir type project in a river basin of Nepal. Briefly mention what steps you would follow from planning to commissioning of the project. ## Short answer Steps are basin master plan and site identification, pre‑feasibility and feasibility studies, EIA approval, PPA and financing, detailed design and tendering, pre‑construction (land, resettlement, access), construction of dam/spillway/powerhouse, reservoir impounding, testing and commissioning, and operation with dam safety and environmental monitoring. ## Answer A 300 MW reservoir project is a large project; the steps from planning to commissioning are: 1. **Basin master plan and identification:** Choose the dam site by desk study, topographic maps and satellite images (reconnaissance). 2. **Pre-feasibility study:** Hydrology, geology, topography; compare dam sites, dam type, heights, and capacities; storage-yield curves; preliminary environment/resettlement study. 3. **Feasibility study:** Detailed survey, drilling, hydrology and sediment, optimisation of dam height and installed capacity, design of dam, spillway, intake, tunnel and powerhouse, cost, EIA, resettlement plan, financial analysis. 4. **Licence, EIA approval, PPA and financing:** Survey and generation licences, EIA approval, power purchase agreement, and finance (government, banks, development partners). 5. **Detailed design and tender:** Final design and drawings, hydraulic model tests, and tender documents; select the contractors (civil, hydro-mechanical, electro-mechanical, transmission). 6. **Pre-construction work:** Land acquisition, resettlement, access road, camp, power supply, diversion arrangements. 7. **Construction:** River diversion, foundation treatment, dam, spillway, intake, tunnel, powerhouse, installation of turbines and generators, transmission line. 8. **Reservoir impounding, testing and commissioning:** Fill reservoir in stages with monitoring, test machines, synchronise and run the plant. 9. **Operation and monitoring:** Maintenance, dam safety, sediment and environmental monitoring. ## Check yourself The answer's key points as multiple-choice questions, with the correct option and why. 1. How does the work for a 300 MW reservoir project begin? A. With basin master plan and identification of dam site by desk study B. With construction of the dam C. With commissioning D. With tender of turbines Answer: A. The identification stage selects the dam site from maps and imagery. (Key point: Start of planning) 2. Which analysis is specific to a reservoir project at pre-feasibility? A. Weir undersluice sizing B. Penstock paint C. Storage-yield curves and comparison of dam sites, types and heights D. Canal slope Answer: C. Storage yield curves help choose dam height and capacity. (Key point: Pre-feasibility for reservoir) 3. Which work is done in pre-construction before the dam is built? A. Land acquisition, resettlement, access road, camp, power supply and diversion arrangements B. Impounding the reservoir C. Commissioning D. Synchronising the generator Answer: A. These enabling works are needed before main construction. (Key point: Pre-construction) 4. How is the reservoir filled before commissioning? A. Instantly in one day B. In stages with monitoring C. Never filled D. By pumping from the tailrace only Answer: B. Staged filling with monitoring protects dam safety. 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