Coal-to-biomass retrofit in Alberta –value of forest residue bioenergy in the electricity system

Keller, Victor; Lyseng, B.; English, Joseph M.; Niet, Taco; Palmer-Wilson, Kevin; Moazzen, Iman; Robertson, Bryson; Wild, Peter; Rowe, Andrew

doi:10.1016/j.renene.2018.02.128

Cited by 32 publications

(8 citation statements)

References 27 publications

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“…However, both of those energy sources tend to suffer from intermittency, and thus, additional baseload or operating reserve is needed to address temporal variations in resource availability. 55 Since forest biomass is a solid fuel that can be easily stored and dispatched, either as baseload power or as a flexible generation for balancing fluctuations in power supply and demand, expanding forest-based electricity is one avenue that could be pursued to increase the reliability of a low-carbon or carbon-neutral electric grid. At a minimum, forest residuederived renewable electricity could serve to supplement other variable (wind and solar) and nonvariable (hydropower and geothermal) renewable energy sources.…”

Section: ■ Discussionmentioning

confidence: 99%

“…Currently, the application of residual woody biomass for electricity is very limited in the U.S., and much attention in past studies has been given to wind and solar power as viable options to decarbonize the electric systems. However, both of those energy sources tend to suffer from intermittency, and thus, additional baseload or operating reserve is needed to address temporal variations in resource availability . Since forest biomass is a solid fuel that can be easily stored and dispatched, either as baseload power or as a flexible generation for balancing fluctuations in power supply and demand, expanding forest-based electricity is one avenue that could be pursued to increase the reliability of a low-carbon or carbon-neutral electric grid.…”

Section: Discussionmentioning

confidence: 99%

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Regionalized Life Cycle Greenhouse Gas Emissions of Forest Biomass Use for Electricity Generation in the United States

Hui

Latta

Lee

et al. 2021

Environ. Sci. Technol.

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This study presents a cradle-to-grave life cycle analysis (LCA) of the greenhouse gas (GHG) emissions of the electricity generated from forest biomass in different regions of the United States (U.S.), taking into consideration regional variations in biomass availabilities and logistics. The regional biomass supply for a 20 MW bioelectricity facility is estimated using the Land Use and Resource Allocation (LURA) model. Results from LURA and data on regional forest management, harvesting, and processing are incorporated into the GHGs, Regulated Emissions, and Energy Use in Technologies (GREET) model for LCA. The results suggest that GHG emissions of mill residues-based pathways can be 15−52% lower than those of pulpwood-based pathways, with logging residues falling in between. Nonetheless, our analysis suggests that screening bioenergy projects on specific feedstock types alone is not sufficient because GHG emissions of a pulpwood-based pathway in one state can be lower than those of a mill residue-based pathway in another state. Furthermore, the available biomass supply often consists of several woody feedstocks, and its composition is region-dependent. Forest biomass-derived electricity is associated with 86−93% lower life-cycle GHG emissions than the emissions of the average grid electricity in the U.S. Key factors driving bioelectricity GHG emissions include electricity generation efficiency, transportation distance, and energy use for biomass harvesting and processing.

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Section: ■ Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Regionalized Life Cycle Greenhouse Gas Emissions of Forest Biomass Use for Electricity Generation in the United States

Hui

Latta

Lee

et al. 2021

Environ. Sci. Technol.

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“…In addition to energy storage and demand side management, the concomitant development of dispatchable and non-dispatchable renewable energy sources is a key factor to ensure the stability of the electricity grids in the future [3]. The further development of bioelectricity can be achieved in a cost-effective manner by taking advantage of the existing assets currently fed with fossil solid fuels [3,4,5,6]. Over 250 coal-fired, large scale power plants are currently operated in Europe [3].…”

Section: Introductionmentioning

confidence: 99%

Impact of intermittent renewable energy production on specific CO2 and NO emissions from large scale gas-fired combined cycles

Blondeau

Mertens

2019

Journal of Cleaner Production

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As they deliver dispatchable renewable energy, biomass power plants are expected to play a key role in the stability of the future electricity grids dominated by intermittent renewables. Large-scale, biomass-fired power plants are often retrofitted from coal-fired plants. Such a fuel modification combined with decreasing pollutant emission limits and higher requirements in terms of load flexibility can lead to a decrease of the maximum power delivered by the unit.The limiting factors are partly related to the control systems of those plants.In this paper, we present the results of the upgrading of a 80 MW e , retrofitted biomass power plant that was achieved by improving the dynamic control of the combustion process. Thanks to the addition of virtual air flow sensors in the control system and the re-design of the combustion control loops, the undesired effects of a recent 10% power increase on NO x emissions were more than compensated. The accurate control of the local NO x production in the furnace resulted in a decrease of these emissions by 15% with an increased stability. This study will help increasing the cost-effectiveness of such conversions, and facili-

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“…Besides, bioenergy production can be used by wood waste or small wood to generate biodiesel. Using of wood for the production of bioenergy is able to provide an alternative solution to prescribed burning of forest as prescribed burning for agriculture use is very common in some area which can increase the greenhouse gas emission and release toxic air pollutant which are hazardous to the environment and human health (Keller et al, 2018). However, bioenergy is still in the early stage of development and have higher potential of improvement compare to the conventional energy therefore, the efficiency of bioenergy produced have to be increased to meet the demand of increasing energy supply whereas greenhouse gasses such as carbon dioxide (CO 2 ) and nitrous oxide (N 2 O) generate from the bioenergy have to be reduced to reach zero emission of greenhouse gas to mitigate the environmental issues (Ahrens et al, 2017;Paredes-Sánchez et al, 2019).…”

Section: The Advantages Of Bioenergymentioning

confidence: 99%

Bioenergy as a prospective energy source in the future

Hadibarata

Citrasari²

2021

Environ. Toxicol. Manage.

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The issues of global warming and greenhouse gasses have raised the concern of the people and led to integrate ambitious of using bioenergy in many countries. In this paper, the issues of conventional energy are stated, and the different types of conventional energy resources are discussed including coal, petroleum and natural gas. The process of pulverized coal combustion (PCC) to generate electricity is also studied and discussed in this paper to have a better understanding of the process and the emission of greenhouse gas released from the use of coal to generate conventional energy. The reason of soil contamination and air pollution caused by the refinery process of petroleum is also discussed in this paper and several study cases of the social economic impact caused by the production of natural gas in development countries. Furthermore, the used of bioenergy and different type of bioenergy resource are discussed including biogas, algae biofuel, and biodiesel. The process of algae cultivation for algae biofuel and the study of toxic waste algae strains that can give a negative impact to the environment is studied to avoid harmful substances released to the environment. The potential algae application in different fields is also included to show the benefit of algae biofuel which is flexible and able to contribute to the global economic growth. Lastly, the advantages of using bioenergy are discussed including the mitigation of greenhouse gas emission, improve social economic growth, renewable energy resources and prevent prescribed burning of the forest.

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Coal-to-biomass retrofit in Alberta –value of forest residue bioenergy in the electricity system

Cited by 32 publications

References 27 publications

Regionalized Life Cycle Greenhouse Gas Emissions of Forest Biomass Use for Electricity Generation in the United States

Regionalized Life Cycle Greenhouse Gas Emissions of Forest Biomass Use for Electricity Generation in the United States

Impact of intermittent renewable energy production on specific CO2 and NO emissions from large scale gas-fired combined cycles

Bioenergy as a prospective energy source in the future

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