Properly Positioning Coal Power in Decarbonizing the Global Power Systems

Jinze Li , Fang Fang , Yuanye Chen , Songyuan Yu , Jizhen Liu , Yanjun Du , Ming Du , Yi Zhang , Qinghua Wang , Yuguang Niu

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Properly Positioning Coal Power in Decarbonizing the Global Power Systems
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Abstract

Coal-based electricity generation stands as the largest single source of global carbon dioxide emissions. The United Nations Climate Change Conference 28 (COP28) reached a historic consensus by all parties to transition away from fossil energy. On a global scale, a tripling of renewable energy capacity and a doubling of energy efficiency improvements by 2030, while gradually phasing out unabated coal power. As we move toward a decarbonized power system in a just, orderly, and equitable manner, coal power can enhance the integration of renewable energy into the electricity system by providing flexible services such as rapid ramping, cycling, and reliable capacity backup, ensuring the secure and stable operation of the system. Herein, we contribute to clarifying the role of coal power flexibility in the different phases of renewable energy development. By analyzing the metrics and costs of coal flexibility, we find that flexibility retrofitting can improve the regulatory capacity of the power system, reduce carbon emissions, and provide economic benefits for operators. The research findings emphasize that coal flexibility can positively contribute to decarbonization through policy support and technological innovation.

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Keywords

Coal power flexibility / Energy transition / Flexibility option / Flexibility economic

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Jinze Li, Fang Fang, Yuanye Chen, Songyuan Yu, Jizhen Liu, Yanjun Du, Ming Du, Yi Zhang, Qinghua Wang, Yuguang Niu. Properly Positioning Coal Power in Decarbonizing the Global Power Systems. Engineering DOI:10.1016/j.eng.2025.06.019

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References

Publishing order | Descend order by publishing year | Descend order by cited within
[1]

Welsby D, Price J, Pye S, Ekins P.Unextractable fossil fuels in a 1.5 °C world.Nature 2021; 597:230-234.
[2]

Key LTßer, Lenzen M.1.5 °C degrowth scenarios suggest the need for new mitigation pathways.Nat Commun 2021; 12:2676.
[3]

Glanemann N, Willner SN, Levermann A.Paris climate agreement passes the cost-benefit test.Nat Commun 2020; 11:110.
[4]

Achakulwisut P, Erickson P, Guivarch C, Schaeffer R, Brutschin E, Pye S.Global fossil fuel reduction pathways under different climate mitigation strategies and ambitions.Nat Commun 2023; 14:5425.
[5]

Masson-Delmotte V, Zhai P, Pörtner HO, Roberts D, Skea J, Shukla PR, et al.Global warming of 1.5 °C. Report. Geneva: World Meteorological Organization; 2019.
[6]

Jewell J, Vinichenko V, Nacke L, Cherp A.Prospects for powering past coal.Nat Clim Chang 2019; 9:592-597.
[7]

CO P28 agreement signals beginning of the end of the fossil fuel era [Internet].Bonn: United Nations Framework Convention on Climate Change; 2023 Dec 13 [cited 2024 Oct 6].
[8]

Ruhnau O, Stiewe C, Muessel J, Hirth L.Natural gas savings in Germany during the 2022 energy crisis.Nat Energy 2023; 8:621-628.
[9]

.Global coal demand set to remain at record levels in 2023 [Internet].Paris: International Energy Agency; 2023 Jul 27 [cited 2024 Oct 6]. Available from: https://www.iea.org/news/global-coal-demand-set-to-remain-at-record-levels-in-2023.
[10]

Muttitt G, Price J, Pye S, Welsby D.Socio-political feasibility of coal power phase-out and its role in mitigation pathways.Nat Clim Chang 2023; 13:140-147.
[11]

Kalkuhl M, Steckel JC, Montrone L, Jakob M, Peters J, Edenhofer O.Successful coal phase-out requires new models of development.Nat Energy 2019; 4:897-900.
[12]

.World energy balances 2019: summary energy balances.Report. Paris: International Energy Agency; 2019.
[13]

Heptonstall PJ, Gross RJ.A systematic review of the costs and impacts of integrating variable renewables into power grids.Nat Energy 2021; 6:72-83.
[14]

Shi Y, Li Y, Zhou Y, Xu R, Feng D, Yan Z, et al.Optimal scheduling for power system peak load regulation considering short-time startup and shutdown operations of thermal power unit.Int J Elec Power 2021; 131:107012.
[15]

Gonzalez-Salazar MA, Kirsten T, Prchlik L.Review of the operational flexibility and emissions of gas- and coal-fired power plants in a future with growing renewables.Renew Sustain Energy Rev 2018; 82:1497-1513.
[16]

Jenkins JD, Zhou Z, Ponciroli R, Vilim RB, Ganda F, de FSisternes, et al.The benefits of nuclear flexibility in power system operations with renewable energy.Appl Energy 2018; 222:872-884.
[17]

Liu L, Guo H, Dai L, Liu M, Xiao Y, Cong T, et al.The role of nuclear energy in the carbon neutrality goal.Prog Nucl Energy 2023; 162:104772.
[18]

Firdaus N, Mori A.Stranded assets and sustainable energy transition: a systematic and critical review of incumbents’ response.Energy Sustain Dev 2023; 73:76-86.
[19]

Song F, Mehedi H, Liang C, Meng J, Chen Z, Shi F.Review of transition paths for coal-fired power plants.Global Energy Interconnect 2021; 4:354-370.
[20]

.Flexibility in thermal power plants with a focus on existing coal-fired power plants.Report. Berlin: Agora Energiewende; 2017.
[21]

.Flexibility in conventional power plants: innovation landscape brief.Report. Abu Dhabi: International Renewable Energy Agency; 2020.
[22]

Status of power system transformation 2018. Report, International Energy Agency/Organisation for Economic Co-operation and Development, Paris (2018)
[23]

Cherp A, Vinichenko V, Tosun J, Gordon JA, Jewell J.National growth dynamics of wind and solar power compared to the growth required for global climate targets.Nat Energy 2021; 6:742-754.
[24]

Liu Z, Wang C, Fan J, Liu M, Xing Y, Yan J.Enhancing the flexibility and stability of coal-fired power plants by optimizing control schemes of throttling high-pressure extraction steam.Energy 2024; 288:129756.
[25]

Kirkegaard JK, Rudolph DP, Nyborg S, Solman H, Gill E, Cronin T, et al.Tackling grand challenges in wind energy through a socio-technical perspective.Nat Energy 2023; 8:655-664.
[26]

Zame KK, Brehm CA, Nitica AT, Richard CL, Schweitzer GDIII.Smart grid and energy storage: policy recommendations.Renew Sustain Energy Rev 2018; 82:1646-1654.
[27]

Denholm P, Arent DJ, Baldwin SF, Bilello DE, Brinkman GL, Cochran JM, et al.The challenges of achieving a 100% renewable electricity system in the United States.Joule 2021; 5:1331-1352.
[28]

China energy outlook: understanding China’s energy and emissions trends.Report.Berkeley: China Energy Group; 2020.
[29]

World energy outlook 2022. Report, International Energy Agency, Paris (2022)
[30]

.China 2050 high renewable energy penetration scenario and roadmap study.Report. Beijing: Energy Research Institute; 2015. Chinese.
[31]

.World energy outlook 2018.Report. Paris: International Energy Agency; 2018.
[32]

Denholm P, Hand M.Grid flexibility and storage required to achieve very high penetration of variable renewable electricity.Energy Policy 2011; 39:1817-1830.
[33]

.Notice on the first batch of thermal power flexibility transformation pilot projects.Report. Beijing: National Energy Administration of China; 2016. Chinese.
[34]

.Trial measures for priority generation of renewable energy peak shaving unit.Report. Beijing: National Energy Administration of China; 2016. Chinese.
[35]

.Thirdth five-year plan for electric power development.Report. Beijing: National Energy Administration of China; National Development and Reform Commission of China; 2016. Chinese.
[36]

.Clean energy consumption action plan (2018–2020).Report. Beijing: National Energy Administration of China; National Development and Reform Commission of China; 2018. Chinese.
[37]

.National coal-fired power generating unit transformation and upgrading implementation plan.Report. Beijing: National Energy Administration of China; National Development and Reform Commission of China; 2021. Chinese.
[38]

.Fourth five-year plan for electric power development.Report. Beijing: National Energy Administration of China; National Development and Reform Commission of China; 2022. Chinese.
[39]

.Action plan to accelerate the construction of a new type of power system.Report. Beijing: National Energy Administration of China; National Development and Reform Commission of China; 2024. Chinese.
[40]

.Carbon pollution emission guidelines for existing stationary sources: electric utility generating units.Report. Washington, DC: United States Environmental Protection Agency; 2024.
[41]

.Affordable clean energy rule.Report. Washington, DC: United States Environmental Protection Agency; 2018.
[42]

.Department of energy invests $56 million in coal technology projects.Report. Washington, DC: US Department of Energy; 2019.
[43]

.The sixth strategic energy plan.Report. Tokyo: Ministry of the Environment Government of Japan; 2021. Japanese.
[44]

.India–Japan clean energy partnership.Report. Tokyo: Ministry of the Environment Government of Japan; 2021. Japanese.
[45]

.Third energy master plan.Report. Sejong: Ministry of Trade, Industry and Energy of Korea; 2019. Korean.
[46]

.Eighth basic plan for energy.Report. Sejong: Ministry of Trade, Industry and Energy of Korea; 2019. Korean.
[47]

Energy & industrial strategy of United Kingdom.Report.London: UK Department for Business and Trade; 2019.
[48]

.The energy act.Report. Bonn: Deutsche Bundesnetzagentur; 2019. German.
[49]

.Act to reduce and end coal-fired power generation.Report. Bonn: Deutsche Bundesnetzagentur; 2019. German.
[50]

.Energy security plan.Report. Copenhagen: Danish Energy Agency; 2022. Danish.
[51]

Joint statement by the government of the republic of Indonesia and international partners group members on the Indonesia just energy transition plan.Report.Brussels: European Commission; 2022.
[52]

Political declaration on establishing the just energy transition partnership with Vietnam.Report.Brussels: European Commission; 2022.
[53]

Energy system of Korea.Report.Paris: International Energy Agency; 2024.
[54]

Energy system of Japan.Report.Paris: International Energy Agency; 2024.
[55]

Rangelova K, Setyawati D.Indonesia and the Philippines coal dependency surges past China and Poland.
[56]

.Power sector overview.
[57]

Do TN, Burke PJ, Nguyen HN, Overland I, Suryadi B, Swandaru A, et al.Vietnam’s solar and wind power success: policy implications for the other Asian countries.Energy Sustain Dev 2021; 65:1-11.
[58]

Do TN, Burke PJ.Phasing out coal power in two major southeast Asian thermal coal economies: Indonesia and Vietnam.Energy Sustain Dev 2024; 80:101451.
[59]

Do TN, Burke PJ, Baldwin KG, Nguyen CT.Underlying drivers and barriers for solar photovoltaics diffusion: the case of Vietnam.Energy Policy 2020; 144:111561.
[60]

Ordonez JA, Vandyck T, Keramidas K, Garaffa R, Weitzel M.Just energy transition partnerships and the future of coal.Nat Clim Chang 2024; 14:1026-1029.
[61]

Do TN, Burke PJ.Phasing out coal power in a developing country context: insights from Vietnam.Energy Policy 2023; 176:113512.
[62]

[Jiang Yi holds talks with Dang Hoang An, chairman of Vietnam Power Group].Report.Beijing: China Huadian Corporation LTD; 2023. Chinese.
[63]

Energy policies of IEAcountries: United States 2019 review.Report.Paris: International Energy Agency; 2019.
[64]

Competitive electricity markets spotlight: California ISO.Report. New York: Electric Power Supply Association; 2021.
[65]

pjm.com [Internet]. Valley Forge: PJM Interconnection; c2025 [cited 2024 Oct 6]. Available from: https://www.pjm.com/.
[66]

[The National Energy Administration organized an analysis meeting on the development and construction situation of renewable energy in China in February 2023]. Beijing: National Energy Administration of China; 2023. Chinese.
[67]

He G, Lin J, Sifuentes F, Liu X, Abhyankar N, Phadke A.Rapid cost decrease of renewables and storage accelerates the decarbonization of China’s power system.Nat Commun 2020; 11:2486.
[68]

[Clean energy makes Qinghai more beautiful]. Report. Xining: The People’s Government of Qinghai Province; 2023. Chinese.
[69]

Eight aspects of the “13th Five-Year Plan for Electric Power Development” draw a blueprint for electric power development. Report. Beijing: National Energy Administration of China; 2016. Chinese.
[70]

Duan WL, Qi M, Designing S.China’s national carbon emissions trading system in a transitional period.Clim Policy 2018; 18:1-6.
[71]

Rückblick 2023: Erneuerbare schafften die 50-prozent-marke.Report. Munich: BMW K; 2024.
[72]

Germany 2020 energy policy review.Report. Paris: International Energy Agency; 2020.
[73]

Energy system of United Kingdom. Report. Paris: International Energy Agency; 2022.
[74]

Energy policies of IEA countries: United Kingdom 2019 review. Report. Paris: International Energy Agency; 2019.
[75]

Denmark 2023 energy policy review.Report. Paris: International Energy Agency; 2023.
[76]

Lannoye E, Flynn D, O M’Malley.Evaluation of power system flexibility.IEEE Trans Power Syst 2012; 27:922-931.
[77]

Capasso A, Falvo MC, Lamedica R, Lauria S, Scalcino S.A new methodology for power systems flexibility evaluation. In: Proceedings of 2005 IEEE Russia Power Tech; 2005 Jun 27–30; St. Petersburg, Russia. IEEE; 2005.
[78]

Ma J, Silva V, Belhomme R, Kirschen DS, Ochoa LF.Evaluating and planning flexibility in sustainable power systems. In: Proceedings of 2013 IEEE Power & Energy Society General Meeting; 2013 Jul 21–25; Vancouver, BC, Canada. IEEE; 2013. p. 1–11.
[79]

Thatte AA, Xie L.A metric and market construct of inter-temporal flexibility in time-coupled economic dispatch.IEEE Trans Power Syst 2015; 31:3437-3446.
[80]

Oree V, Hassen SZS.A composite metric for assessing flexibility available in conventional generators of power systems.Appl Energy 2016; 177:683-691.
[81]

Yasuda Y, Carlini EM, Estanqueiro A, Eriksen PB, Flynn D, Herre LF, et al.Flexibility chart 2.0: an accessible visual tool to evaluate flexibility resources in power systems.Renew Sustain Energy Rev 2023; 174:113116.
[82]

The power of transformation: wind, sun and the economics of flexible power systems.Report. Paris: International Energy Agency; 2014.
[83]

Henderson C.Increasing the flexibility of coal-fired power plants. IEA Clean Coal Centre, Report. London (2014)
[84]

Flexibility in the power system Danish and European experiences. Report. Copenhagen: Danish Energy Agency; 2015.
[85]

Flexible coal: evolution from baseload to peaking plant.Report. Golden: National Renewable Energy Lab; 2013.
[86]

Tampubolon AP, Tumiwa F, Simamora IP, Godron IP, Energiewende A.Understanding flexibility of thermal power plants: flexible coal power generation in the power system with higher renewable energy penetration.Report. Jakarta: Institute for Essential Services Reform; 2020.
[87]

Hirst D, Keep M.Carbon price floor (CPF) and the price support mechanism.Report. London: House of Commons Library; 2018.
[88]

Strategies for Coal Transition in Korea. Report. Paris: International Energy Agency; 2023.
[89]

Notice on pilot projects for thermal power flexibility renovation. Report. Beijing: National Energy Administration of China; 2016. Chinese.
[90]

Guiding opinions on improving the regulating capacity of the power system. Report. Beijing: National Energy Administration of China; 2018. Chinese.
[91]

Implementation plan for national coal power unit renovation and upgrading. Report. Beijing: National Energy Administration of China; 2021. Chinese.
[92]

Gharibvand H, Gharehpetian GB, Anvari-Moghaddam A.A survey on microgrid flexibility resources, evaluation metrics and energy storage effects.Renew Sustain Energy Rev 2024; 201:114632.
[93]

Fan H, Zhang Y, Su Z, Wang B.A dynamic mathematical model of an ultra-supercritical coal fired once-through boiler-turbine unit.Appl Energy 2017; 189:654-666.
[94]

Mertens N, Alobaid F, Starkloff R, Epple B, Kim HG.Comparative investigation of drum-type and once-through heat recovery steam generator during start-up.Appl Energy 2015; 144:250-260.
[95]

Cruz MR, Fitiwi DZ, Santos SF, Catal JPão.A comprehensive survey of flexibility options for supporting the low-carbon energy future.Renew Sustain Energy Rev 2018; 97:338-353.
[96]

VanderWijk P, Brouwer A, VandenBroek M, Slot T, Stienstra G, VanderVeen W, et al.Benefits of coal-fired power generation with flexible CCS in a future northwest European power system with large scale wind power.Int J Greenh Gas Control 2014; 28:216-233.
[97]

Xu C, Xu G, Zhao S, Dong W, Zhou L, Yang Y.A theoretical investigation of energy efficiency improvement by coal pre-drying in coal fired power plants.Energy Convers Manage 2016; 122:580-588.
[98]

Lin B, Liu Z.Could coal-fired power plants with ccs be an effective way for carbon neutrality in China?.Jof Manage Sci Eng 2024; 9:461-473.
[99]

Fu C, Anantharaman R, Jordal K, Gundersen T.Thermal efficiency of coal-fired power plants: from theoretical to practical assessments.Energy Convers Manage 2015; 105:530-544.
[100]

Pelissari MR, Cañas SSM, Barbosa MO, Tassinari CCG.Decarbonizing coal-fired power plants: carbon capture and storage applied to a thermoelectric complex in Brazil.Results Eng 2023; 19:101249.
[101]

Fan JL, Fu J, Zhang X, Li K, Zhou W, Hubacek K, et al.Co-firing plants with retrofitted carbon capture and storage for power-sector emissions mitigation.Nat Clim Chang 2023; 13:807-815.
[102]

Schill WP, Pahle M, Gambardella C.Start-up costs of thermal power plants in markets with increasing shares of variable renewable generation.Nat Energy 2017; 2:1-6.
[103]

Ashkanani HE, Wang R, Shi W, Siefert NS, Thompson RL, Smith K, et al.Effect of power plant capacity on the CAPEX, OPEX, and LCOC of the CO2 capture process in pre-combustion applications.Int J Greenh Gas Control 2021; 109:103371.
[104]

Pang Y, Chi Y, Tian B.Economic evaluation of flexible transformation in coal-fired power plants with multi price links.J Clean Prod 2023; 402:136851.
[105]

Gar Sðarsdóttir, Göransson L, Normann F, Johnsson F.Improving the flexibility of coal-fired power generators: Impact on the composition of a cost-optimal electricity system.Appl Energy 2018; 209:277-289.
[106]

Meng Y, Cao Y, Li J, Liu C, Li J, Wang Q, et al.The real cost of deep peak shaving for renewable energy accommodation in coal-fired power plants: calculation framework and case study in China.J Clean Prod 2022; 367:132913.
[107]

Shrimali G.Managing power system flexibility in India via coal plants.Energy Policy 2021; 150:112061.
[108]

Flexibilisation of coal fired power plant India (2023). Report. New Delhi: Central Electricity Authority; 2023.
[109]

Zhao Z, Hao Y.Cost optimization of renewable energy accommodation system based on flexibility renovation of thermal power units.Modern Electr Power 2024; 41(2):326-334.
[110]

Lin L, Xu B, Xia S.Multi-angle economic analysis of coal-fired units with plasma ignition and oil injection during deep peak shaving in China.Appl Sci 2019; 9:5399.
[111]

Yang L, Zhou N, Hu B, Chen L, Xu F, Wang Q.Optimal scheduling method for coupled system based on ladder-type ramp rate of thermal power units.Proc CSEE 2022; 42:153-164.
[112]

Yang Y, Zeng Y, Qin C, Wang C.Planning model for flexibility reformation of thermal power units for deep peak regulation.Autom Electr Power Syst 2021; 45:79-88.
[113]

Cai Y, He X, Su Y, Ding B, Hu W, Yang Z.Economic research on thermal power unit peak regulation considering safety, environmental protection and compensation.Electric Power 2021; 54:199-205.
[114]

Yan X, Tong D, Zheng Y, Liu Y, Chen S, Qin X, et al.Cost-effectiveness uncertainty may bias the decision of coal power transitions in China.Nat Commun 2024; 15:1-12.
[115]

Efkarpidis N, Imoscopi S, Geidl M, Cini A, Lukovic S, Alippi C, et al.Peak shaving in distribution networks using stationary energy storage systems: a Swiss case study.Sustain Energy Grids Netw 2023; 34:101018.
[116]

Qi L, Zhao L, Zhang YQ, Jiang SQ, Lin XY, Ren YS.Computable general equilibrium analysis of neutral carbon trading scheme and revenue recycling impacts on income distribution in China.Humanit Soc Sci Commun 2024; 11:1-12.
[117]

Operating rules of northeast electric power auxiliary service market. Report. Beijing: National Energy Administration of China; 2020. Chinese.
[118]

Akrami A, Doostizadeh M, Aminifar F.Power system flexibility: an overview of emergence to evolution.J Mod Power Syst Clean Energy 2019; 7:987-1007.
[119]

Ackermann L, Gabrek N, Zachmann B, Neitz-Regett A, Seifermann S.Cost–benefit analysis and comparison of grid-stabilizing energy flexibility options and their applications in relation to the German energy system.Renewable Energy Focus 2024; 49:100570.
[120]

Northeast electric power ancillary services market operation rules. Report. Beijing: National Energy Administration of China; 2020. Chinese.
[121]

Implementation rules for Shandong Province’s electric power auxiliary service management. Report. Beijing: National Energy Administration of China; 2022. Chinese.
[122]

Implementation rules for auxiliary service management of grid connected power plants in East China region. Report. Beijing: National Energy Administration of China; 2019. Chinese.
[123]

Implementation rules for power auxiliary service management in Central China region. Report. Beijing: National Energy Administration of China; 2020. Chinese.
[124]

Zou C, Xiong B, Xue H, Zheng D, Ge Z, Wang Y, et al.The role of new energy in carbon neutral.Pet Explor Dev 2021; 48:480-491.
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