000102069 001__ 102069
000102069 005__ 20220426091137.0
000102069 0247_ $$2doi$$a10.1016/j.ijhydene.2020.04.095
000102069 0248_ $$2sideral$$a118226
000102069 037__ $$aART-2020-118226
000102069 041__ $$aeng
000102069 100__ $$0(orcid)0000-0001-7379-6159$$aRomeo, L.M.$$uUniversidad de Zaragoza
000102069 245__ $$aReducing cycling costs in coal fired power plants through power to hydrogen
000102069 260__ $$c2020
000102069 5060_ $$aAccess copy available to the general public$$fUnrestricted
000102069 5203_ $$aThe increase of renewable share in the energy generation mix makes necessary to increase the flexibility of the electricity market. Thus, fossil fuel thermal power plants have to adapt their electricity production to compensate these fluctuations. Operation at partial load means a significant loss of efficiency and important reduction of incomes from electricity sales in the fossil power plant. Among the energy storage technologies proposed to overcome these problems, Power to Gas (PtG) allows for the massive storage of surplus electricity in form of hydrogen or synthetic natural gas. In this work, the integration of a Power to Gas system (50 MWe) with fossil fuel thermal power plants (500 MWe) is proposed to reduce the minimum complaint load and avoid shutdowns. This concept allows a continuous operation of power plants during periods with low demand, avoiding the penalty cost of shutdown. The operation of the hybrid system has been modelled to calculate efficiencies, hydrogen and electricity production as a function of the load of the fossil fuel power plant. Results show that the utilisation of PtG diminishes the specific cost of producing electricity between a 20% and 50%, depending on the framework considered (hot, warm and cold start-up). The main contribution is the reduction of the shutdown penalties rather than the incomes from the sale of the hydrogen. At the light of the obtained results, the hybrid system may be implemented to increase the cost-effectiveness of existing fossil fuel power plants while adapting the energy mix to high shares of variable renewable electricity sources.
000102069 536__ $$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/ENE2016-76850-R
000102069 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000102069 590__ $$a5.816$$b2020
000102069 591__ $$aCHEMISTRY, PHYSICAL$$b48 / 162 = 0.296$$c2020$$dQ2$$eT1
000102069 591__ $$aENERGY & FUELS$$b37 / 114 = 0.325$$c2020$$dQ2$$eT1
000102069 591__ $$aELECTROCHEMISTRY$$b9 / 29 = 0.31$$c2020$$dQ2$$eT1
000102069 592__ $$a1.212$$b2020
000102069 593__ $$aCondensed Matter Physics$$c2020$$dQ1
000102069 593__ $$aRenewable Energy, Sustainability and the Environment$$c2020$$dQ1
000102069 593__ $$aFuel Technology$$c2020$$dQ1
000102069 593__ $$aEnergy Engineering and Power Technology$$c2020$$dQ1
000102069 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000102069 700__ $$0(orcid)0000-0001-9967-5806$$aPeña, B.$$uUniversidad de Zaragoza
000102069 700__ $$0(orcid)0000-0002-9174-9820$$aBailera, M.$$uUniversidad de Zaragoza
000102069 700__ $$0(orcid)0000-0002-2306-6729$$aLisbona, P.
000102069 7102_ $$15004$$2590$$aUniversidad de Zaragoza$$bDpto. Ingeniería Mecánica$$cÁrea Máquinas y Motores Térmi.
000102069 773__ $$g45, 48 (2020), 25838-25850$$pInt. j. hydrogen energy$$tInternational Journal of Hydrogen Energy$$x0360-3199
000102069 8564_ $$s336541$$uhttps://zaguan.unizar.es/record/102069/files/texto_completo.pdf$$yPostprint
000102069 8564_ $$s1955153$$uhttps://zaguan.unizar.es/record/102069/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000102069 909CO $$ooai:zaguan.unizar.es:102069$$particulos$$pdriver
000102069 951__ $$a2022-04-26-08:54:11
000102069 980__ $$aARTICLE