Chapter 2 Power Plant Economics and

Variable Load Problem

Lay Meng Hort E-mail: laymenghort@gmail.com Tel: 012 405 877

ELECTRICITE DU CAMBODGE

INSTITUTE OF ELECTRICAL SCIENCE

2 Introduction Lay Meng Hort

Contents

I. Terms and factors

II. Factor Effecting Power Plant Design

III. Effect of Power Plant Type on Costs

IV. Effect of Plant Type on Rates (Tariffs or

Energy Element)

V. Effect of Plant Type on Fixed Elements

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Contents

VI. Effect of Plant Type on Customer Elements

VII. Investors Profit

VIII.Economics in Plant Selection

IX. Economic of Power Generation

X. Load Curves

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I. Terms and Factors 1. Load Factor, m

It is defined as the ratio of the average load to the peak load during a certain prescribed period of time.

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I. Terms and Factors 1. Load Factor

It is defined as the ratio of the average load to the peak load during a certain prescribed period of time.

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I. Terms and Factors

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I. Terms and Factors

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I. Terms and Factors

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I. Terms and Factors

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I. Terms and Factors Note:

6. Plant used factor

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I. Terms and Factors

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I. Terms and Factors

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I. Terms and Factors

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II. Factor Effecting Power Plant Design

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III. Effect of Power Plant Type on Costs

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IV. Effect of Plant Type on Rates (Tariffs or Energy Element)

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V. Effect of Plant Type on Fixed Elements

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VI. Effect of Plant Type on Customer Elements

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VII. Investors Profit

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VIII. Economic of Power Generation

A power plant should be reliable. The capacity of a power plant depends upon

the power demand. The capacity of a power plant should be

more than predicted maximum demand. The number of generating units should be

two or more than two. The number of generating units should be so

chosen that the plant capacity is used efficiently.

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IX. Economic of Power Generation

Power should be supplied to the consumer at the lowest possible cost per kWh.

(i) Selecting equipment of longer life and proper

capacities.

(ii) Running the power station at high load factor.

(iii) Increasing the efficiency of the power plant.

(iv) Carrying out proper maintenance of power

plant equipment to avoid plant breakdowns.

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IX. Economic of Power Generation

(v) Keeping proper supervision as a good supervision is reflected in lesser breakdowns and extended plant life.

(vi) Using a plant of simple design that does not need highly skilled personnel.

A typical proportion of generating cost for a steam power station is as follows :

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X. Load Curves

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II. Temple of Cambodia

Thank You

Slide Number 1ContentsContentsI. Terms and FactorsI. Terms and FactorsI. Terms and FactorsI. Terms and FactorsI. Terms and FactorsI. Terms and FactorsI. Terms and FactorsI. Terms and FactorsI. Terms and FactorsI. Terms and FactorsII. Factor Effecting Power Plant DesignIII. Effect of Power Plant Type on CostsIV. Effect of Plant Type on Rates (Tariffs or Energy Element)V. Effect of Plant Type on Fixed Elements VI. Effect of Plant Type on Customer ElementsVII. Investors ProfitVIII. Economic of Power GenerationIX. Economic of Power GenerationIX. Economic of Power GenerationX. Load CurvesII. Temple of Cambodia