Combined cycle power plants (CCPP) consume one-third less natural gas and carbon dioxide per generated kilowatt-hour compared to other power plant technologies. CCPPs allow electricity to be generated from the heat produced from natural gas combustion in a more efficient way. While natural gas is more versatile than coal and oil, its quantities are limited and transportation is costly. France aims to modernize its electricity production by building more CCPPs to reduce waste and emissions, as natural gas currently only accounts for 1% of its electrical production compared to over 35% in other European countries.

1. Combined Cycle
Power Plant
David Grenier
Master GI 2

2. Table of content
Introduction / Context
How it works
Why do they use this technology
Disadvantages to use natural gas
The situation in France
Conclusion

3. 1. Combined Cycle Power Plant (CCPP)
Intro
Context
Consumes
2. one-third less
Working
Allows
natural gas & to…
CO2 /
3. generated
Why used kW.h
CCPP
Last
4.
Natural gas technologies
Disadvantages
5. Protect
French’s environnement
situation
6. 3 main
Conclusion
leaders
1

4. 1. Combined Cycle Power Plant (CCPP)
Intro
Context
2 Engineering Departments
2.
Working
3.
Why used
CCPP Concurrent
Product Power Plan
Engineering
Engineering (PE): Engineering (PPE):
4.
Natural gas
Disadvantages
Shaft line Shaft line’s environment
Piping
More than 100 items
Ex :
- Gas turbine
5.
French’s - Generator Air Filter
situation - Steam turbine
- …
Fire Fighting Protection
6.
Conclusion

5. 1. Combined Cycle Power Plant (CCPP)
Intro
Context
Natural Gas - More versatile than coal & oil
- Can be used in 90% of energy applications
2.
Working
3.
Why used
CCPP
4.
Natural gas
Disadvantages
Electricity
5.
French’s
situation
6.
Conclusion

6. 1. Continual Improvement of technology
Intro
Context
2.
Working
Higher increase
3.
Why used
Customer’s demand
CCPP
4.
Natural gas
Disadvantages CCPP’s Advantages :
- Industry-Leading Start Capability : start capability of 28 minutes for hot starts
5. and start reliability of greater than 98%
French’s - Fast Ramp Rates : 51 MW per minute ramping capability and improved load
situation
adjustment capability
- Improved Turndown : turndown of less than 40% of base load within emissions
compliance
6.
- Fuel Flexibility : to have both a distillate fuel back-up option and a modified
Conclusion
wobbe index variation of +/- 10%.
- To reduce CO2 emissions : above 50 %

7. 1. Disadvantages
Intro
Context
2. Limited quantity of Higher operating
Working natural gas cost
3. Transport is
Why used costly
CCPP
To be fully
4. consumed by Highly
Natural gas 2070
Disadvantages
inflammable
substance
5.
French’s
situation - a colorless and an odorless substance, detection of gas leaks can be difficult
- The process of extraction of natural gas involves making large cavities in the
ground. The cavities result in an increase in soil pressure and can cause the
6. ground to sink
Conclusion - Natural gas occupies four times the space of a gasoline-equivalent energy

8. 1. The situation in France
Intro
Context
2. Electrical production by natural gas
Working
3. England, Spai
Why used FFrance :
n, Austria :
CCPP only 1% 35%
FItaly : 40%
4.
Natural gas
Disadvantages
French objective :
5.
French’s - To modernize production’s park of electricity
situation - Since 2009 : Project to built every CCPP
- In order to reduce waste and CO2 emissions
- There will be 10 CCPP by 2012
6.
Conclusion - Three of them are currently being built

9. 1. Political
Intro
Context
France becomes first country to ban extraction of
natural gas by fracking : The French parliament
2.
voted on June 30 (2011) to ban the controversial
Working
technique for extracting natural gas from shale
rock deposits known as hydraulic fracturing, or
3. fracking
Why used
CCPP
Sourcing of natural gas by France
Norway
Holland
4.
Natural gas
Disadvantages Russia
5.
French’s Others
situation
French
6. production
Conclusion
Algeria

10. Natural Gas Gasoline-equivalent
1.
energy
Intro
Context 4x 1x
2.
Working
3. Costs of treatment, storage and
Why used
CCPP
transport are expensives
4.
Natural gas
Disadvantages
5.
French’s
situation
6.
Conclusion Natural gas is advantageous for its clean combustion process and its
availability. There are some disadvantages of natural gas but many
companies choose netherless this energy for use as a fuel.