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Egypt Electricity Improves Thermal Generation Efficiency Up to 42.5% from 40.4% in 12 Years.

Egypt Electricity Improves Thermal Generation Efficiency

Up to 42.5% from 40.4% in 12 Years.

 

1. Background

 

- Electricity has a vital role in economic and social development plans implementation. Egypt Electricity has a robust reliable system. It has generation capacities of (55GW) generate about (197TWh).

- Generated electricity consists of (6.47%) hydro, (1.46%) solar and wind and (92%) thermal. Natural Gas is a dominated fuel of (85.5%) of consumed fuel. Therefore, it is highly impressive to enhance thermal generation efficiency.

 

2. Egypt Electricity Generation Expansion Plan

 

Electricity demand increases with an average rate of (6%) annually, which necessitates generation capacities expansion, to meet the growing demand. It has been decided to opt addition combined cycles blocks whenever needed, to make use of its lower fuel consumption compared with steam blocks. Following table (1) highlights this fact.

Table (1): Combined Cycle Contribution

 

Year

 

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

Total Generation MW

21944

22583

23502

24725

27050

29075

30800

32118

35323

38960

45111

55213

C.C. Generation MW

4949

6449

7178

7178

9327

10078

10078

11430

11880

12630

12630

30030

Ratio %

 

22.55

28.55

30.54

29.03

34.48

34.66

32.72

35.59

33.63

32.42

28

54.39

 

 

3. Impacts on Fuel Rate and Thermal Efficiency

 

This in turn improves the fuel consumption rates and the net thermal efficiencies year by year, as shown in table (2) below.

 

Table (2): Fuel Rates and Efficiency Improvements

 

Year

 

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

Fuel Rate Gm/KWh

219.6   

 

217.3    

216.1   

214.6    

208.1

209.03    

 

212

209.7

214.1      

212.4  

210

206.3

Efficiency

 %

40

40

40

40.4

42.1

42

41.4

41.8

41

41.3

41.8

42.5

 

 

4. Quantifying Impacts of Enhanced Fuel Rates

 

Quantifying the cumulative impacts of enhanced fuel rates of Egypt Electricity due to successively addition of combined cycle blocks is a crucial process. Assume 2006 as a base year with fuel rate consumption of (222.2 gm/KWh) as a bottom line for comparisons. For the next year 2007, one has a new fuel rate (219.6 gm/KWh)  

, which is lower than that of 2006 with a difference of (-2.6 gm/KWh). Knowing the net thermal generation of 2007 (101487GWh), one can calculate the saved fuel in 2008 due to enhanced fuel rate. This process is repeated year by year as shown in table (3) below.

 

Table (3): Quantification of Consumed Fuel Saving

 

Year

07

08

09

10

11

12

13

14

15

16

17

18

Fuel Rate Gm/KWh

219.6     

 

217.3    

216.1   

214.6    

208.1

209.03    

 

212

209.7

214.1      

212.4  

210

206.3

Saved fuel rate from base year 222.2gm/kwh

 

- 2.6

- 4.9

- 6.1

- 7.6

- 14.1

- 13.17

- 10.2

- 12.5

- 8.1

- 9.8

- 12.2

- 15.9

Annual Thermal Generation GWH

101487                 

 

108206

115139

124760

131809

142216    

 

149738

152949

159333         

 

170363

173762

181006

Annual Saved Fuel 103 Toe

264

530

702

948

1859

1873

1527

1912

1290

1670

2120

2878

 

 

5. Value of Cumulative Saved Fuel and Avoided CO2 Emission

 

Total cumulative saved fuel during study period (2007-2018) is 17.573 million tones oil equivalents. Knowing that one T.O.E. equals to 7.4 Barrel, and the average price was 50$/ barrel will lead to a price 370 USD for T.O.E. Therefore, Revenue of cumulative saved fuel is 6.5 USD Billion.

It is worth to mention that Cumulative CO2 Emission avoided is in amount of 17.573 million tones.

Dr. Amal Khashab's picture

Thank Dr. Amal for the Post!

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