scholarly journals Quantifying coal power plant responses to tighter SO2 emissions standards in China

2018 ◽  
Vol 115 (27) ◽  
pp. 7004-7009 ◽  
Author(s):  
Valerie J. Karplus ◽  
Shuang Zhang ◽  
Douglas Almond
Keyword(s):  
Power Plants ◽  
Data Sources ◽  
Monitoring Systems ◽  
Plant Responses ◽  
So2 Emissions ◽  
Air Quality Improvement ◽  
Coal Power Plants ◽  
Coal Power ◽  
The Impact

We evaluate the impact of China’s new air pollution standards on sulfur dioxide (SO2) emissions by comparing newly available data from Continuous Emissions Monitoring Systems (CEMS) at coal power plants with satellite measures. First, we show that following the July 2014 deadline for implementing tighter emissions standards, stack concentrations of SO2 reported by CEMS declined by 13.9%. Second, on average the ratios of the declines of SO2 measures in the satellite data and the CEMS data are about 0.5. However, the degree of correspondence between the two data sources varies by policy stringency, with weak correspondence found in key regions facing the toughest new limits. Third, large plants achieved compliance earlier than small (typically) power and heat cogeneration plants. To achieve continued air quality improvement, our results suggest a need for increased scrutiny of emissions data quality and monitoring practices and clear long-term targets.

scholarly journals Evaluation of the Administrative Phase-Out of Coal Power Plants on the Italian Electricity Market

Energies ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4596
Author(s):  
Michele Fiorelli ◽  
Dogan Keles ◽  
Francesco Montana ◽  
Giovanni Lorenzo Restifo ◽  
Eleonora Riva Sanseverino ◽  
...  
Keyword(s):  
Electricity Market ◽  
Power Plants ◽  
Small Variation ◽  
Electricity Price ◽  
Spot Price ◽  
Price Variation ◽  
Coal Power Plants ◽  
Coal Power ◽  
Phase Out ◽  
The Impact

Although decarbonisation is one of the most important macro-trends of this century, electricity generation from coal power plants is still broadly common. The main goal of this study is to evaluate the impact of a premature coal power plants phase-out on the Italian day-ahead electricity market. For this purpose, two electricity price forecasts, related to different scenarios between 2019 and 2030, and two different hypotheses for the creation of electricity spot price, were compared. The results from the different scenarios show that coal power plants phase-out determines a small variation in electricity price when bid-up is not considered; instead, when operators’ bid-up is included in the study, the price variation becomes relevant.

The Impact of Electricity Market and Environmental Regulation on Carbon Capture & Storage (CCS) Development in China

2011 ◽  
pp. 463-471
Author(s):  
Zhao Ang
Keyword(s):  
Environmental Regulation ◽  
Electricity Market ◽  
Carbon Capture ◽  
Power Plants ◽  
Carbon Price ◽  
Intellectual Property Right ◽  
Chinese Government ◽  
Coal Power Plants ◽  
Coal Power ◽  
The Impact

Carbon Capture & Storage (CCS) has been regarded as a significant mitigation strategy to tackle global warming although the uncertainties of carbon price and CCS technology exist. Given that China is the biggest coal consumer and around four fifths of its electricity comes from coal power plants, many think CCS has to plays a central role in cutting the carbon emission of China’s coal power fleet. Most existing researches on CCS development in China emphasize the importance of sufficient funding, technological access, and market readiness, but put little light on the role of environmental regulation and electricity market establishment. This chapter examines the impact of Chinese electricity market establishment and environmental regulatory institution on CCS. This chapter argues that Chinese government should protect Intellectual Property Right (IPR), liberalize electricity market, and enforce environmental regulation in order to harvest CCS benefits successfully.

scholarly journals Experimental study applied to the lime hydration process, in a thermoelectric coal power plant unit

2020 ◽  
Author(s):  
Rodrigo Saraiva Dantas ◽  
Maria Alejandra Liendo ◽  
Vera Lucia Duarte Ferreira ◽  
Rodrigo Bortoluzzi
Keyword(s):  
Power Plant ◽  
Power Plants ◽  
Hydrated Lime ◽  
Hydration Process ◽  
Maximum Temperature ◽  
Main Process ◽  
Coal Power Plants ◽  
Coal Power ◽  
The Impact

Abstract Coal Power Plants need to control SO 2 emissions to the atmosphere from the boiler flue gases, in order to reach standards according to guidelines determined by the Conselho Nacional de Meio Ambiente - CONAMA. For this purpose hydrated lime is used, which is, in fact, produced from lime at the power plant. Hydrated lime is injected into the equipment called desulphuriser that operates capturing the sulfur dioxide from the boiler flue gas. Due to the importance of this process, the present work aimed to evaluate several points that involve: the production of hydrated lime from lime, the analysis of the quality of lime received, the study of the hydration process. Moreover it was evaluated the impact of the temperature of reaction through to the hydration efficiency according to the methodology and routine proposed. In addition, complementary analysis were carried out on the characterization of lime and hydrated lime and the correlation between the main process parameters measured and recorded in lime hydration control system. In relation to the results of hydration efficiency, it was possible to observe its increase when the maximum temperature of the reaction stage was lower, reaching results up to 85%.

Advancing Oxycombustion Technology for Bituminous Coal Power Plants: An R&D Guide

2012 ◽  
Author(s):  
Mark Woods ◽  
Michael Matuszewski ◽  
Robert Brasington
Keyword(s):  
Power Plants ◽  
Bituminous Coal ◽  
Coal Power Plants ◽  
Coal Power

scholarly journals Weather-Driven Scenario Analysis for Decommissioning Coal Power Plants in High PV Penetration Grids

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2389
Author(s):  
Samuel Matthew G. Dumlao ◽  
Keiichi N. Ishihara
Keyword(s):  
Solar Energy ◽  
Scenario Analysis ◽  
Power Plants ◽  
Solar Power ◽  
Flow Analysis ◽  
Policy Decision ◽  
Hourly Temperature ◽  
Coal Power Plants ◽  
Coal Power ◽  
Pv Penetration

Despite coal being one of the major contributors of CO2, it remains a cheap and stable source of electricity. However, several countries have turned to solar energy in their goal to “green” their energy generation. Solar energy has the potential to displace coal with support from natural gas. In this study, an hourly power flow analysis was conducted to understand the potential, limitations, and implications of using solar energy as a driver for decommissioning coal power plants. To ensure the results’ robustness, the study presents a straightforward weather-driven scenario analysis that utilizes historical weather and electricity demand to generate representative scenarios. This approach was tested in Japan’s southernmost region, since it represents a regional grid with high PV penetration and a fleet of coal plants older than 40 years. The results revealed that solar power could decommission 3.5 GW of the 7 GW coal capacity in Kyushu. It was discovered that beyond 12 GW, solar power could not reduce the minimum coal capacity, but it could still reduce coal generation. By increasing the solar capacity from 10 GW to 20 GW and the LNG quota from 10 TWh to 28 TWh, solar and LNG electricty generation could reduce the emissions by 37%, but the cost will increase by 5.6%. Results also show various ways to reduce emissions, making the balance between cost and CO2 a policy decision. The results emphasized that investing in solar power alone will not be enough, and another source of energy is necessary, especially for summer and winter. The weather-driven approach highlighted the importance of weather in the analysis, as it affected the results to varying degrees. The approach, with minor changes, could easily be replicated in other nations or regions provided that historical hourly temperature, irradiance, and demand data are available.

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