Power Plant Construction and QA/QC

Section 7.1 - General Features of Hydro Electric Project

Engineering Technology Engineering Technology DivisionDivision

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Section 7.1 - General Features of Hydro Electric Project

Overview

• Hydroelectric converts water potential energy into work

• Energy output is based on head – difference in height

• Hydroelectric power is a renewable resource• Water is “fuel” but still needs management• Typically power is transmitted over longer

distances• China is now the production leader with the 3

Gorges dam.

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Section 7.1 - General Features of Hydro Electric Project

Types of Development

• Run of the River – Flow Rate and Volume of River• Reservoir

• Ponding – Peak Use• Seasonal Storage – Dry Time Use - Summer• Long Term Storage – Base Load

• Pumped Storage• Pure Pumped Storage – Between two

reservioris• Pump-Back Pumped Storage – River and

Storage• Seasonal Pumped Storage – Demand and

River Flow

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Section 7.1 - General Features of Hydro Electric Project

Planning Process

1. Establishment of Goals, Objectives and Standards – Measure, Power, Attractiveness

2. Feasibility Study Design

3. Inventory – Needs, Opportunities, Resources

4. Analysis and Forecasts – Life of Plant

5. Formation of Alternate Plans – Functionality and Physicality

6. Evaluation of Alternate Plans – 1 to 3 to Explore

7. Selection and Definition of Next Course of Action

Output - Feasibility StudyOutput - Feasibility Study

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Section 7.1 - General Features of Hydro Electric Project

Implementation Process

• Contracting Methods• Unit Price

• Bid Price per Quantity and Total Price• Lump Sum

• One Price, All inclusive• Design/Build

• Drawings and Engineering part of Bid – Turn Key – “Architect Engineer” – Sub Contract

• Pricing• Time and Materials• Firm Price

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Section 7.1 - General Features of Hydro Electric Project

General Arrangement

Diversion Dam

Storage Dam

Spillway

Outlet Works

Intake

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Section 7.1 - General Features of Hydro Electric Project

Environmental Considerations

• Flora and Fauna• Down Stream

• Habitation• Cities• Industry

• Upstream• Lost Land• Habitation• Oxygenation

• Open Water• Winter Environment• Water Sports

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Questions?

Section 7.1 - General Features of Hydro Electric Project