scholarly journals Keeping The Lights On With Coal Energy: A Financial Approach

2016 ◽  
Vol 5 (1) ◽  
pp. 1-8
Author(s):  
Flory Anette Dieck-Assad
Keyword(s):  
Environmental Protection Agency ◽  
Electricity Generation ◽  
Carbon Capture ◽  
Power Plants ◽  
Clean Energy ◽  
Protection Agency ◽  
Carbon Capture And Sequestration ◽  
Mercury Emissions ◽  
Energy Technologies ◽  
Operative Costs

Environmental, political, and economic events seem to conspire simultaneously towards the objective to erase coal-fired power plants. The most important events are: the increase of environmental regulations, the surge of natural gas as a cleaner fuel, the operative costs, the aging and the efficiency issue of the coal-fired power plants. However, the decision of the U.S.A. Supreme Court, the 29th of June 2015, suspended the regulation proposals presented by the U.S.A. Environmental Protection Agency concerning the mercury emissions of coal-fired power plants. This decision caused debate and controversy. The main objective of the sustainable approach for electricity generation is to find the blending of fuels that decrease contamination. However, the contradiction of different events in the world poses the challenge to evaluate if the XXI Century will see the end of the coal era. Could the technological breakthroughs like the Carbon Capture and Sequestration (CCS) and the development of other Clean Energy Technologies on Coal (CCT) stop this trend or, will the financial and environmental profitability of coal help it to remain in the energy mix?

scholarly journals Optimal Selection of Integrated Electricity Generation Systems for the Power Sector with Low Greenhouse Gas (GHG) Emissions

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4571
Author(s):  
Adeel Arif ◽  
Muhammad Rizwan ◽  
Ali Elkamel ◽  
Luqman Hakeem ◽  
Muhammad Zaman
Keyword(s):  
Co2 Emissions ◽  
Electricity Generation ◽  
Carbon Capture ◽  
Power Plants ◽  
Mixed Integer ◽  
Co2 Mitigation ◽  
Power Sector ◽  
Carbon Capture And Sequestration ◽  
Cost Of Electricity ◽  
The Cost

Cheap and clean energy demand is continuously increasing due to economic growth and industrialization. The energy sectors of several countries still employ fossil fuels for power production and there is a concern of associated emissions of greenhouse gases (GHG). On the other hand, environmental regulations are becoming more stringent, and resultant emissions need to be mitigated. Therefore, optimal energy policies considering economic resources and environmentally friendly pathways for electricity generation are essential. The objective of this paper is to develop a comprehensive model to optimize the power sector. For this purpose, a multi-period mixed integer programming (MPMIP) model was developed in a General Algebraic Modeling System (GAMS) to minimize the cost of electricity and reduce carbon dioxide (CO2) emissions. Various CO2 mitigation strategies such as fuel balancing and carbon capture and sequestration (CCS) were employed. The model was tested on a case study from Pakistan for a period of 13 years from 2018 to 2030. All types of power plants were considered that are available and to be installed from 2018 to 2030. Moreover, capacity expansion was also considered where needed. Fuel balancing was found to be the most suitable and promising option for CO2 mitigation as up to 40% CO2 mitigation can be achieved by the year 2030 starting from 4% in 2018 for all scenarios without increase in the cost of electricity (COE). CO2 mitigation higher than 40% by the year 2030 can also be realized but the number of new proposed power plants was much higher beyond this target, which resulted in increased COE. Implementation of carbon capture and sequestration (CCS) on new power plants also reduced the CO2 emissions considerably with an increase in COE of up to 15%.

Cost Analysis of Carbon Capture and Sequestration from U.S. Natural Gas-Fired Power Plants

2020 ◽  
Vol 54 (10) ◽  
pp. 6272-6280 ◽  
Author(s):  
Peter Psarras ◽  
Jiajun He ◽  
Hélène Pilorgé ◽  
Noah McQueen ◽  
Alexander Jensen-Fellows ◽  
...  
Keyword(s):  
Natural Gas ◽  
Cost Analysis ◽  
Carbon Capture ◽  
Power Plants ◽  
Carbon Capture And Sequestration

scholarly journals Cost and U.S. public policy for new coal power plants with carbon capture and sequestration

2009 ◽  
Vol 1 (1) ◽  
pp. 4487-4494 ◽  
Author(s):  
Michael R. Hamilton ◽  
Howard J. Herzog ◽  
John E. Parsons
Keyword(s):  
Public Policy ◽  
Carbon Capture ◽  
Power Plants ◽  
Carbon Capture And Sequestration ◽  
Coal Power Plants ◽  
Coal Power

scholarly journals The Economics of Renewable Energy Sources into Electricity Generation in Tanzania

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Baraka Kichonge ◽  
Iddi S. N. Mkilaha ◽  
Geoffrey R. John ◽  
Sameer Hameer
Keyword(s):  
Renewable Energy ◽  
Energy Supply ◽  
Electricity Generation ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Primary Energy ◽  
Energy Sources ◽  
Renewable Energy Technologies ◽  
Energy Technologies ◽  
Primary Energy Supply

The study analyzes the economics of renewable energy sources into electricity generation in Tanzania. Business as usual (BAU) scenario and renewable energy (RE) scenario which enforce a mandatory penetration of renewable energy sources shares into electricity generations were analyzed. The results show total investment cost for the BAU scenario is much lower as compared to RE scenario while operating and maintenance variable costs are higher in BAU scenario. Primary energy supply in BAU scenario is higher tied with less investment costs as compared to RE scenario. Furthermore, the share of renewable energy sources in BAU scenario is insignificant as compared to RE scenario due to mandatory penetration policy imposed. Analysis concludes that there are much higher investments costs in RE scenario accompanied with less operating and variable costs and lower primary energy supply. Sensitivity analysis carried out suggests that regardless of changes in investments cost of coal and CCGT power plants, the penetration of renewable energy technologies was still insignificant. Notwithstanding the weaknesses of renewable energy technologies in terms of the associated higher investments costs, an interesting result is that it is possible to meet future electricity demand based on domestic resources including renewables.

EU’s green agenda will expose large divergences

2021 ◽  
Keyword(s):  
Carbon Capture ◽  
Carbon Capture And Storage ◽  
Clean Energy ◽  
European Countries ◽  
Lower Income ◽  
Public And Private ◽  
Content Type ◽  
Energy Technologies ◽  
Storage Technologies ◽  
And Storage

Significance The extent of their preparedness reflects a combination of willingness and ability. Willingness is evident in government policy and in the public's environmental consciousness and support for government targets and policies. Ability stems from wealth, both public and private, industrial expertise and the capacity to innovate. Impacts North European countries are likely to take a lead in hydrogen and carbon capture and storage technologies. Lower-income European countries will struggle to raise capital to invest in electricity transmission. Those countries able to develop deployable clean energy technologies will be better placed to offset the costs of transition.

Qualification Testing of a Liquid CO2 Turbopump for Carbon Capture and Sequestration Applications

2011 ◽  
Author(s):  
J. Jeffrey Moore ◽  
Hector Delgado ◽  
Timothy Allison
Keyword(s):  
Carbon Dioxide ◽  
Power Plant ◽  
Carbon Capture ◽  
Power Plants ◽  
Pressure Rise ◽  
Department Of Energy ◽  
Minimal Amount ◽  
Carbon Capture And Sequestration ◽  
Liquid Co2 ◽  
Qualification Testing

In order to reduce the amount of carbon dioxide (CO2) greenhouse gases released into the atmosphere, significant progress has been made in developing technology to sequester CO2 from power plants and other major producers of greenhouse gas emissions. The compression of the captured carbon dioxide stream requires a sizeable amount of power, which impacts plant availability, capital expenditures and operational cost. Preliminary analysis has estimated that the CO2 compression process reduces the plant efficiency by 8% to 12% for a typical power plant. The goal of the present research is to reduce this penalty through development of novel compression and pumping processes. The research supports the U.S. Department of Energy (DOE) National Energy Technology Laboratory (NETL) objectives of reducing the energy requirements for carbon capture and sequestration in electrical power production. The primary objective of this study is to boost the pressure of CO2 to pipeline pressures with the minimal amount of energy required. Previous thermodynamic analysis identified optimum processes for pressure rise in both liquid and gaseous states. At elevated pressures, CO2 assumes a liquid state at moderate temperatures. This liquefaction can be achieved through commercially available refrigeration schemes. However, liquid CO2 turbopumps of the size and pressure needed for a typical power plant were not available. This paper describes the design, construction, and qualification testing of a 150 bar cryogenic turbopump. Unique characteristics of liquid CO2 will be discussed.

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