{"id":"https://openalex.org/W4392014523","doi":"https://doi.org/10.3390/en17040929","title":"Coal Share Reduction Options for Power Generation during the Energy Transition: A Bulgarian Perspective","display_name":"Coal Share Reduction Options for Power Generation during the Energy Transition: A Bulgarian Perspective","publication_year":2024,"publication_date":"2024-02-16","ids":{"openalex":"https://openalex.org/W4392014523","doi":"https://doi.org/10.3390/en17040929"},"language":"en","primary_location":{"id":"doi:10.3390/en17040929","doi":"https://doi.org/10.3390/en17040929","is_oa":true,"landing_page_url":"https://doi.org/10.3390/en17040929","pdf_url":"https://www.mdpi.com/1996-1073/17/4/929/pdf?version=1708324978","source":{"id":"https://openalex.org/S198098182","display_name":"Energies","issn_l":"1996-1073","issn":["1996-1073"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","doaj","norway-1","poland-140","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Energies","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1996-1073/17/4/929/pdf?version=1708324978","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5060923240","display_name":"Georgi Dimitrov Todorov","orcid":"https://orcid.org/0000-0002-2381-7449","observed_orcids":["https://orcid.org/0000-0002-2381-7449"]},"institutions":[{"id":"https://openalex.org/I31151848","display_name":"Technical University of Sofia","ror":"https://ror.org/052prhs50","country_code":"BG","type":"education","lineage":["https://openalex.org/I31151848"]}],"countries":["BG"],"is_corresponding":false,"raw_author_name":"Georgi Todorov","raw_affiliation_strings":["Faculty of Industrial Technology, Technical University of Sofia, 1756 Sofia, Bulgaria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Industrial Technology, Technical University of Sofia, 1756 Sofia, Bulgaria","institution_ids":["https://openalex.org/I31151848"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5090877148","display_name":"Ivan Mladenov Kralov","orcid":"https://orcid.org/0000-0001-8215-8319","observed_orcids":["https://orcid.org/0000-0001-8215-8319"]},"institutions":[{"id":"https://openalex.org/I31151848","display_name":"Technical University of Sofia","ror":"https://ror.org/052prhs50","country_code":"BG","type":"education","lineage":["https://openalex.org/I31151848"]}],"countries":["BG"],"is_corresponding":false,"raw_author_name":"Ivan Kralov","raw_affiliation_strings":["Faculty of Industrial Technology, Technical University of Sofia, 1756 Sofia, Bulgaria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Industrial Technology, Technical University of Sofia, 1756 Sofia, Bulgaria","institution_ids":["https://openalex.org/I31151848"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5073912661","display_name":"Ivaylo Koprev","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210109310","display_name":"University of Mining and Geology \"Saint Ivan Rilski\"","ror":"https://ror.org/01z014940","country_code":"BG","type":"education","lineage":["https://openalex.org/I4210109310"]}],"countries":["BG"],"is_corresponding":false,"raw_author_name":"Ivailo Koprev","raw_affiliation_strings":["University of Mining and Geology \u201cSt. Ivan Rilski\u201d, 1700 Sofia, Bulgaria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Mining and Geology \u201cSt. Ivan Rilski\u201d, 1700 Sofia, Bulgaria","institution_ids":["https://openalex.org/I4210109310"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5005926030","display_name":"Hristo Vasilev","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I31151848","display_name":"Technical University of Sofia","ror":"https://ror.org/052prhs50","country_code":"BG","type":"education","lineage":["https://openalex.org/I31151848"]}],"countries":["BG"],"is_corresponding":false,"raw_author_name":"Hristo Vasilev","raw_affiliation_strings":["Faculty of Industrial Technology, Technical University of Sofia, 1756 Sofia, Bulgaria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Industrial Technology, Technical University of Sofia, 1756 Sofia, Bulgaria","institution_ids":["https://openalex.org/I31151848"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5056530452","display_name":"Iliyana Naydenova","orcid":"https://orcid.org/0000-0001-7174-1971","observed_orcids":["https://orcid.org/0000-0001-7174-1971"]},"institutions":[{"id":"https://openalex.org/I31151848","display_name":"Technical University of Sofia","ror":"https://ror.org/052prhs50","country_code":"BG","type":"education","lineage":["https://openalex.org/I31151848"]}],"countries":["BG"],"is_corresponding":true,"raw_author_name":"Iliyana Naydenova","raw_affiliation_strings":["Faculty of Industrial Technology, Technical University of Sofia, 1756 Sofia, Bulgaria"],"raw_orcid":"https://orcid.org/0000-0001-7174-1971","affiliations":[{"raw_affiliation_string":"Faculty of Industrial Technology, Technical University of Sofia, 1756 Sofia, Bulgaria","institution_ids":["https://openalex.org/I31151848"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5056530452"],"corresponding_institution_ids":["https://openalex.org/I31151848"],"apc_list":{"value":2600,"currency":"CHF","value_usd":2955},"apc_paid":{"value":2600,"currency":"CHF","value_usd":2955},"fwci":1.863,"has_fulltext":true,"cited_by_count":28,"citation_normalized_percentile":{"value":0.85307961,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":95,"max":100},"biblio":{"volume":"17","issue":"4","first_page":"929","last_page":"929"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12271","display_name":"Renewable energy and sustainable power systems","score":0.9750999808311462,"subfield":{"id":"https://openalex.org/subfields/2105","display_name":"Renewable Energy, Sustainability and the Environment"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12271","display_name":"Renewable energy and sustainable power systems","score":0.9750999808311462,"subfield":{"id":"https://openalex.org/subfields/2105","display_name":"Renewable Energy, Sustainability and the Environment"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10471","display_name":"Climate Change Policy and Economics","score":0.003800000064074993,"subfield":{"id":"https://openalex.org/subfields/2002","display_name":"Economics and Econometrics"},"field":{"id":"https://openalex.org/fields/20","display_name":"Economics, Econometrics and Finance"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11185","display_name":"Integrated Energy Systems Optimization","score":0.0034000000450760126,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/coal-fired-power-plants","display_name":"coal-fired power plants","score":0.9309999942779541},{"id":"https://openalex.org/keywords/energy-transition","display_name":"energy transition","score":0.8500000238418579},{"id":"https://openalex.org/keywords/just-transition","display_name":"just transition","score":0.8669999837875366},{"id":"https://openalex.org/keywords/lignite","display_name":"lignite","score":0.7300000190734863},{"id":"https://openalex.org/keywords/biomass-co-firing","display_name":"biomass co-firing","score":0.878000020980835},{"id":"https://openalex.org/keywords/paulownia","display_name":"Paulownia","score":0.7799999713897705},{"id":"https://openalex.org/keywords/carbon-emission-reduction","display_name":"carbon emission reduction","score":0.7089999914169312},{"id":"https://openalex.org/keywords/renewable-energy","display_name":"renewable energy","score":0.5120000243186951},{"id":"https://openalex.org/keywords/energy-policy","display_name":"energy policy","score":0.5559999942779541},{"id":"https://openalex.org/keywords/land-use","display_name":"land use","score":0.6850000023841858},{"id":"https://openalex.org/keywords/bulgaria","display_name":"Bulgaria","score":0.5809999704360962}],"concepts":[{"id":"https://openalex.org/C127627568","wikidata":"https://www.wikidata.org/wiki/Q1639361","display_name":"Sociotechnical system","level":2,"score":0.7057273387908936},{"id":"https://openalex.org/C2777890234","wikidata":"https://www.wikidata.org/wiki/Q795757","display_name":"Energy transition","level":4,"score":0.6486430764198303},{"id":"https://openalex.org/C188573790","wikidata":"https://www.wikidata.org/wiki/Q12705","display_name":"Renewable energy","level":2,"score":0.5894405841827393},{"id":"https://openalex.org/C134560507","wikidata":"https://www.wikidata.org/wiki/Q753291","display_name":"Environmental economics","level":1,"score":0.579155683517456},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.5414782166481018},{"id":"https://openalex.org/C131046424","wikidata":"https://www.wikidata.org/wiki/Q1805337","display_name":"Energy policy","level":3,"score":0.476940780878067},{"id":"https://openalex.org/C175605778","wikidata":"https://www.wikidata.org/wiki/Q3299701","display_name":"Natural resource economics","level":1,"score":0.437350332736969},{"id":"https://openalex.org/C423512","wikidata":"https://www.wikidata.org/wiki/Q383973","display_name":"Electricity generation","level":3,"score":0.41085484623908997},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.38487106561660767},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.35231953859329224},{"id":"https://openalex.org/C107826830","wikidata":"https://www.wikidata.org/wiki/Q929380","display_name":"Environmental resource management","level":1,"score":0.34199678897857666},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.2998689115047455},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.23133432865142822},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.21180075407028198},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.13021034002304077},{"id":"https://openalex.org/C187736073","wikidata":"https://www.wikidata.org/wiki/Q2920921","display_name":"Management","level":1,"score":0.0},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.0},{"id":"https://openalex.org/C204787440","wikidata":"https://www.wikidata.org/wiki/Q188504","display_name":"Alternative medicine","level":2,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C26993612","wikidata":"https://www.wikidata.org/wiki/Q910154","display_name":"Panacea (medicine)","level":3,"score":0.0},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.3390/en17040929","doi":"https://doi.org/10.3390/en17040929","is_oa":true,"landing_page_url":"https://doi.org/10.3390/en17040929","pdf_url":"https://www.mdpi.com/1996-1073/17/4/929/pdf?version=1708324978","source":{"id":"https://openalex.org/S198098182","display_name":"Energies","issn_l":"1996-1073","issn":["1996-1073"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","doaj","norway-1","poland-140","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Energies","raw_type":"journal-article"},{"id":"pmh:oai:RePEc:gam:jeners:v:17:y:2024:i:4:p:929-:d:1340050","doi":null,"is_oa":false,"landing_page_url":"https://www.mdpi.com/1996-1073/17/4/929/","pdf_url":null,"source":{"id":"https://openalex.org/S4306401271","display_name":"RePEc: Research Papers in Economics","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I77793887","host_organization_name":"Federal Reserve Bank of St. Louis","host_organization_lineage":["https://openalex.org/I77793887"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"article"},{"id":"pmh:oai:doaj.org/article:acaba86cda954c48a2a78ee3c225c5b5","doi":null,"is_oa":true,"landing_page_url":"https://doaj.org/article/acaba86cda954c48a2a78ee3c225c5b5","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Energies, Vol 17, Iss 4, p 929 (2024)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.3390/en17040929","doi":"https://doi.org/10.3390/en17040929","is_oa":true,"landing_page_url":"https://doi.org/10.3390/en17040929","pdf_url":"https://www.mdpi.com/1996-1073/17/4/929/pdf?version=1708324978","source":{"id":"https://openalex.org/S198098182","display_name":"Energies","issn_l":"1996-1073","issn":["1996-1073"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","doaj","norway-1","poland-140","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Energies","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":1.0},{"id":"https://metadata.un.org/sdg/13","display_name":"Climate action","score":0.9786999821662903},{"id":"https://metadata.un.org/sdg/9","display_name":"Industry, innovation and infrastructure","score":0.428600013256073}],"study_designs":[],"awards":[{"id":"https://openalex.org/G1585300174","display_name":null,"funder_award_id":"BG05M2OP001-1.001-0008.","funder_id":"https://openalex.org/F4320335322","funder_display_name":"European Regional Development Fund"},{"id":"https://openalex.org/G1888088267","display_name":null,"funder_award_id":"2014-2020\u2019","funder_id":"https://openalex.org/F4320335322","funder_display_name":"European Regional Development Fund"},{"id":"https://openalex.org/G4026979911","display_name":null,"funder_award_id":"2018-2023","funder_id":"https://openalex.org/F4320335322","funder_display_name":"European Regional Development Fund"},{"id":"https://openalex.org/G4156963064","display_name":null,"funder_award_id":"BG05M2OP001-1.001-0008, 2018\u20132023","funder_id":"https://openalex.org/F4320323573","funder_display_name":"Ministry of Education and Science"}],"funders":[{"id":"https://openalex.org/F4320323573","display_name":"Ministry of Education and Science","ror":"https://ror.org/053pcb396"},{"id":"https://openalex.org/F4320335322","display_name":"European Regional Development Fund","ror":"https://ror.org/00k4n6c32"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4392014523.pdf","grobid_xml":"https://content.openalex.org/works/W4392014523.grobid-xml"},"referenced_works_count":90,"referenced_works":["https://openalex.org/W1861985279","https://openalex.org/W1965793278","https://openalex.org/W1970182451","https://openalex.org/W1970403262","https://openalex.org/W1973497326","https://openalex.org/W2010042020","https://openalex.org/W2011015287","https://openalex.org/W2012087796","https://openalex.org/W2017254242","https://openalex.org/W2040218041","https://openalex.org/W2042765397","https://openalex.org/W2044972332","https://openalex.org/W2051519447","https://openalex.org/W2051889208","https://openalex.org/W2056840239","https://openalex.org/W2070846912","https://openalex.org/W2071858146","https://openalex.org/W2073293325","https://openalex.org/W2079371157","https://openalex.org/W2084023134","https://openalex.org/W2090576197","https://openalex.org/W2092558761","https://openalex.org/W2109963249","https://openalex.org/W2121929034","https://openalex.org/W2134395557","https://openalex.org/W2335521722","https://openalex.org/W2343897867","https://openalex.org/W2574846779","https://openalex.org/W2580802630","https://openalex.org/W2596147515","https://openalex.org/W2611082386","https://openalex.org/W2738630150","https://openalex.org/W2768843178","https://openalex.org/W2791457409","https://openalex.org/W2791621544","https://openalex.org/W2795387844","https://openalex.org/W2797545261","https://openalex.org/W2799971967","https://openalex.org/W2898304417","https://openalex.org/W2900969289","https://openalex.org/W2901574742","https://openalex.org/W2902017838","https://openalex.org/W2911585997","https://openalex.org/W2996081429","https://openalex.org/W3007986124","https://openalex.org/W3008898521","https://openalex.org/W3036307784","https://openalex.org/W3045712201","https://openalex.org/W3091093974","https://openalex.org/W3099455817","https://openalex.org/W3101554735","https://openalex.org/W3112122716","https://openalex.org/W3115549464","https://openalex.org/W3118573297","https://openalex.org/W3133652643","https://openalex.org/W3156274616","https://openalex.org/W3156895445","https://openalex.org/W3157853553","https://openalex.org/W3158329711","https://openalex.org/W3165810149","https://openalex.org/W3166462578","https://openalex.org/W3171249365","https://openalex.org/W3176259347","https://openalex.org/W3176524509","https://openalex.org/W3205090152","https://openalex.org/W3217692460","https://openalex.org/W4205165160","https://openalex.org/W4205695778","https://openalex.org/W4207076150","https://openalex.org/W4210690189","https://openalex.org/W4221104955","https://openalex.org/W4221135809","https://openalex.org/W4224213039","https://openalex.org/W4224997266","https://openalex.org/W4281551017","https://openalex.org/W4283714590","https://openalex.org/W4285735724","https://openalex.org/W4297087294","https://openalex.org/W4297422699","https://openalex.org/W4297792769","https://openalex.org/W4302029037","https://openalex.org/W4303645110","https://openalex.org/W4306405776","https://openalex.org/W4308661828","https://openalex.org/W4311129418","https://openalex.org/W4362475156","https://openalex.org/W4362508396","https://openalex.org/W4379471006","https://openalex.org/W4388267387","https://openalex.org/W4390143032"],"related_works":["https://openalex.org/W7132633925","https://openalex.org/W4415233770","https://openalex.org/W4405522028","https://openalex.org/W7160115655","https://openalex.org/W6923322607","https://openalex.org/W3049443948","https://openalex.org/W3160017039","https://openalex.org/W4409791716","https://openalex.org/W3045820270","https://openalex.org/W7132390405"],"abstract_inverted_index":{"The":[0,33,62,184,207],"sustainable":[1],"energy":[2,21,72,111,197],"transition":[3],"to":[4,66,159,211,216,256],"a":[5,13,98,314,379],"low-carbon":[6],"and":[7,76,81,127,136,152,154,175,203,220,229,245,247,269,344,365],"climate-neutral":[8],"economy":[9],"by":[10,238],"2050":[11],"requires":[12],"consistent":[14],"increase":[15],"in":[16,37,92,177,214,326],"the":[17,25,28,38,48,68,71,79,85,110,164,170,178,181,189,195,217,224,242,262,277,303,311,321,327,332,340,347,356,372,375],"share":[18,29,103,278],"of":[19,27,30,40,47,60,70,147,162,180,205,226,261,279,301,306,339,350,358,383],"renewable":[20],"sources":[22,59],"(RESs)":[23],"at":[24,78,331],"expense":[26],"fossil":[31,263],"fuels.":[32],"coal":[34,90,102,280],"power":[35,52,107,266,286,324,351,366],"plants":[36,287],"Republic":[39],"Bulgaria":[41],"have":[42,253],"provided":[43],"about":[44,374],"one":[45],"third":[46],"annually":[49],"produced":[50],"electric":[51],"for":[53,88,101,106,188,265,275,294,346],"decades,":[54],"utilizing":[55],"mainly":[56],"locally":[57],"available":[58,86],"lignite.":[61],"present":[63],"work":[64],"aimed":[65],"review":[67,115],"progress":[69],"transition,":[73],"its":[74],"rejection":[75],"acceptance":[77],"national":[80],"international":[82],"scene":[83],"alongside":[84],"research":[87,126,240],"cleaner":[89],"combustion":[91],"Bulgaria,":[93],"as":[94,96,125,139,141,193],"well":[95,140],"discuss":[97],"Bulgarian":[99,284],"perspective":[100],"reduction":[104,297],"options":[105],"generation":[108,367],"during":[109],"transition.":[112,166,317],"A":[113],"comprehensive":[114],"was":[116,273],"carried":[117],"out,":[118],"based":[119],"on":[120],"freely":[121],"accessible":[122],"data":[123],"such":[124],"open":[128],"media":[129],"articles,":[130],"officially":[131],"published":[132],"field":[133],"reports,":[134],"legislative":[135],"strategic":[137],"acts":[138],"validated":[142],"statistical":[143],"data.":[144],"Three":[145],"groups":[146],"critical":[148,182],"gaps":[149],"(socioeconomic,":[150],"sociotechnical":[151],"cultural":[153],"political)":[155],"were":[156,173,298,353,368],"indicated,":[157],"claimed":[158],"be":[160],"capable":[161,300],"guiding":[163],"just":[165],"Key":[167],"factors":[168],"influencing":[169],"process":[171],"dynamics":[172],"identified":[174],"categorized":[176],"context":[179],"gaps.":[183],"peculiar":[185],"policy":[186,248],"criteria":[187],"carbon-intensive":[190],"regions":[191],"are":[192],"follows:":[194],"dominant":[196],"carriers,":[198],"existing":[199,307],"infrastructure,":[200],"involved":[201],"actors":[202],"choice":[204],"strategy.":[206],"observations":[208],"allowed":[209],"us":[210],"conclude":[212],"that":[213],"addition":[215],"efforts":[218],"achieved":[219],"ambitious":[221],"political":[222],"will,":[223],"identification":[225],"reliable":[227],"technological":[228],"socioeconomic":[230],"measures":[231,293,319],"is":[232],"needed":[233],"more":[234],"than":[235],"ever":[236],"(accompanied":[237],"interdisciplinary":[239],"involving":[241],"technical,":[243],"social":[244],"environmental":[246],"factors),":[249],"while":[250],"renewables":[251],"still":[252],"long":[254],"way":[255],"go":[257],"towards":[258,313],"complete":[259],"substitution":[260],"fuels":[264],"generation,":[267],"transport,":[268],"manufacturing.":[270],"Limited":[271],"literature":[272],"found":[274],"reducing":[276],"from":[281,386],"currently":[282],"operating":[283],"coal-fired":[285],"(CFPPs).":[288],"Herein,":[289],"short-":[290],"and/or":[291],"medium-term":[292],"carbon":[295],"emission":[296],"discussed,":[299],"promoting":[302],"limited":[304],"operation":[305],"CFPPs,":[308],"thus":[309],"paving":[310],"road":[312],"sustainable,":[315],"long-term":[316],"These":[318],"concerned":[320],"typically":[322],"used":[323],"units":[325,352],"largest":[328],"CFPPs":[329],"located":[330],"Maritsa":[333],"Iztok":[334],"Mining":[335],"Complex":[336],"(MIMC).":[337],"Analyses":[338],"biomass":[341],"production,":[342],"supply":[343],"cost":[345],"same":[348],"type":[349],"proposed,":[354],"considering":[355],"use":[357],"100%":[359],"biomass.":[360],"Estimated":[361],"costs,":[362],"unit":[363],"efficiencies":[364],"discussed":[369],"along":[370],"with":[371],"evaluations":[373],"land":[376],"use,":[377],"ensuring":[378],"given":[380],"annual":[381],"productivity":[382],"wood":[384],"chips":[385],"fast":[387],"growing":[388],"plants,":[389],"e.g.,":[390],"Paulownia.":[391]},"counts_by_year":[{"year":2026,"cited_by_count":8},{"year":2025,"cited_by_count":17},{"year":2024,"cited_by_count":3}],"updated_date":"2026-11-10T11:39:43.021295","created_date":"2024-02-22T00:00:00"}