Technology Briefing on Gas-Fired Combined Cycle Generation Issues
The report aims to identifiy the key technical developments that will influence the way in which combined cycle power generation will develop as its role shifts from base load generation to grid support. It covers the key areas of gas turbine efficiency, combined cycle plant flexibility, and the role of carbon capture in future combined cycle plants.
Features and benefits
- Understand the importance of technology changes in shaping the future of the natural gas-fired power generation market.
- Identify the key developments being pursued by the main manufacturers as they attempt to adapt to changes in market conditions.
- Evaluate the cost implications of carbon capture and storage.
- Evaluate the prospects for natural gas-fired power generation based on developments in the gas supply industry.
- Analyze levelized cost trends.
Highlights
The technical emphasis within the gas turbine industry has switched from efficiency to flexibility. However, there is a conflict between greater flexibility, maintaining overall efficiency, and the need to introduce carbon capture. Balancing these conflicting demands will shape the industry over the next two to three decades.
Carbon capture is likely to be required, even for combined cycle plants, in the near future. The technology to achieve this is available but not tested. However, analysis suggests that even with carbon capture, a combined cycle plant will remain competitive.
Natural gas-fired combined cycle power plants will have a key grid support role to play provided the cost of natural gas remains low. Recent predictions suggest that this may happen, but much depends on the availability of gas from unconventional sources.
Your key questions answered
- What technology changes will affect future gas-fired power generation?
- When will these changes take place, and where?
- How will these technologies be integrated into future power plants?
- How will gas-fired generation fit into a future based increasingly on renewable sources of electric power?
- What are the prospects for growth in the natural gas-fired power generation market?
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Table Of contents
About the author
Paul Breeze
Disclaimer
EXECUTIVE SUMMARY
The technical issues
Costs and prospects
The technical issues
Summary
Introduction
The growth of gas-fired power generation
The quest for efficiency
Optimizing for flexibility
Part load efficiency
Fast startup
Grid support and fast ramping
Multiple turbines
Maintaining emissions performance
Carbon capture
Capture technologies
Costs and prospects
Summary
Introduction
Capital costs
Levelized cost
Appendix
List of sources
List Of Tables
Table: Global net electricity generation, by fuel (TWh), 2008–35
Table: Gas turbine parameters for major manufacturers' 60% efficiency machines, 2012
Table: Average capacity factors for US combined cycle plants (%), 1998–2009
Table: US power plant carbon dioxide emissions, by fuel (%), 2009
Table: Natural gas combined cycle performance with carbon capture (%), 2010
Table: Global CCS Institute output, efficiency, and overnight costs for combined cycle plants, 2011
Table: Carnegie Mellon University output, efficiency, and overnight costs for combined cycle power plants, 2011
Table: US Department of Energy capital cost of plants with various carbon capture technologies, 2010
Table: Global CCS Institute levelized cost of electricity ($/MWh), 2011
Table: US Department of Energy levelized cost of various carbon capture technologies ($/MWh), 2010
Table: Levelized cost of electricity from gas turbine plants entering service in 2016 ($/MWh), 2011
Table: Levelized costs for US plants entering service in 2016 ($/MWh), 2011
Table: Levelized costs for UK plants (£/MWh), 2011
Table: Global power generation from natural gas (TWh), 2008–35
Table: IEA predictions for future global primary energy consumption (Mtoe), 2008–35
Table: Renewable energy capacity in Europe (%), 2000–30
List Of Figures
Figure: Global net electricity generation, by fuel (TWh), 2008–35
Figure: Gas turbine inlet temperatures (degrees Celsius), 2012
Figure: Average capacity factors for US combined cycle plants (%), 1998–2009
Figure: US power plant carbon dioxide emissions, by fuel (%), 2009
Figure: Carbon capture efficiency (%), 2010
Figure: Global CCS Institute overnight costs for combined cycle plants ($/kW), 2011
Figure: Carnegie Mellon University combined cycle power plant capital costs ($/kW), 2011
Figure: US Department of Energy overnight capital cost of plants with various carbon capture technologies ($/kW), 2010
Figure: Global CCS Institute levelized cost of electricity ($/MWh), 2011
Figure: US Department of Energy levelized cost of various carbon capture technologies ($/MWh), 2010
Figure: Levelized cost of electricity from gas turbine plants entering service in 2016 ($/MWh), 2011
Figure: Levelized costs for US plants entering service in 2016 ($/MWh), 2011
Figure: Levelized costs for UK plants (£/MWh), 2011
Figure: Global power generation from natural gas (TWh), 2008–35
Figure: IEA predictions for future global primary energy consumption (Mtoe), 2008–35
Figure: Renewable energy capacity in Europe (%), 2000–30
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