{"id":"https://openalex.org/W7208710099","doi":"https://doi.org/10.52825/siliconpv.v4i.3448","title":"Novel Assessment of a Three-Parameter Beta Fit Model for PV Low-Light Characterization","display_name":"Novel Assessment of a Three-Parameter Beta Fit Model for PV Low-Light Characterization","publication_year":2026,"publication_date":"2026-09-04","ids":{"openalex":"https://openalex.org/W7208710099","doi":"https://doi.org/10.52825/siliconpv.v4i.3448"},"language":"en","primary_location":{"id":"doi:10.52825/siliconpv.v4i.3448","doi":"https://doi.org/10.52825/siliconpv.v4i.3448","is_oa":true,"landing_page_url":"https://doi.org/10.52825/siliconpv.v4i.3448","pdf_url":"https://www.tib-op.org/ojs/index.php/siliconpv/article/download/3448/3751","source":{"id":"https://openalex.org/S5407036457","display_name":"SiliconPV Conference Proceedings","issn_l":"2940-2123","issn":["2940-2123"],"is_oa":true,"is_in_doaj":true,"is_core":false,"listed_in":["ddh","doaj"],"host_organization":"https://openalex.org/P4404678057","host_organization_name":"TIB Open Publishing","host_organization_lineage":["https://openalex.org/P4404678057"],"host_organization_lineage_names":["TIB Open Publishing"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"SiliconPV Conference Proceedings","raw_type":"journal-article"},"volume":null,"type":"conference-paper","is_traditional":true,"indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://www.tib-op.org/ojs/index.php/siliconpv/article/download/3448/3751","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5038488727","display_name":"Andreas W. Schneider","orcid":"https://orcid.org/0000-0003-3574-8265","observed_orcids":["https://orcid.org/0000-0003-3574-8265"]},"institutions":[{"id":"https://openalex.org/I4210145899","display_name":"Westf\u00e4lische Hochschule","ror":"https://ror.org/04p7ekn23","country_code":"DE","type":"education","lineage":["https://openalex.org/I4210145899"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Andreas Schneider","raw_affiliation_strings":["Westf\u00e4lische Hochschule"],"raw_orcid":"https://orcid.org/0000-0003-3574-8265","affiliations":[{"raw_affiliation_string":"Westf\u00e4lische Hochschule","institution_ids":["https://openalex.org/I4210145899"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027248835","display_name":"Jorge Rabanal-Arabach","orcid":"https://orcid.org/0000-0002-9234-2598","observed_orcids":["https://orcid.org/0000-0002-9234-2598"]},"institutions":[{"id":"https://openalex.org/I129739261","display_name":"Universidad de Antofagasta","ror":"https://ror.org/04eyc6d95","country_code":"CL","type":"education","lineage":["https://openalex.org/I129739261"]}],"countries":["CL"],"is_corresponding":false,"raw_author_name":"Jorge Rabanal Arabach","raw_affiliation_strings":["Universidad de Antofagasta"],"raw_orcid":"https://orcid.org/0000-0002-9234-2598","affiliations":[{"raw_affiliation_string":"Universidad de Antofagasta","institution_ids":["https://openalex.org/I129739261"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5150034968","display_name":"Paul Grunow","orcid":"https://orcid.org/0009-0004-5661-7840","observed_orcids":["https://orcid.org/0009-0004-5661-7840"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Paul Grunow","raw_affiliation_strings":["Trinity Solarbeteiligungen GmbH"],"raw_orcid":"https://orcid.org/0009-0004-5661-7840","affiliations":[{"raw_affiliation_string":"Trinity Solarbeteiligungen GmbH","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5150028868","display_name":"Hua Hsuan Kuo","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Hua Hsuan Kuo","raw_affiliation_strings":["CTCI Foundation"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CTCI Foundation","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5088293505","display_name":"Thomas Nierhoff","orcid":"https://orcid.org/0009-0003-7094-0305","observed_orcids":["https://orcid.org/0009-0003-7094-0305"]},"institutions":[{"id":"https://openalex.org/I4210145899","display_name":"Westf\u00e4lische Hochschule","ror":"https://ror.org/04p7ekn23","country_code":"DE","type":"education","lineage":["https://openalex.org/I4210145899"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Thomas Nierhoff","raw_affiliation_strings":["Westf\u00e4lische Hochschule"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Westf\u00e4lische Hochschule","institution_ids":["https://openalex.org/I4210145899"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"4","issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10468","display_name":"Photovoltaic System Optimization Techniques","score":0.7134000062942505,"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/T10468","display_name":"Photovoltaic System Optimization Techniques","score":0.7134000062942505,"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/T11276","display_name":"Solar Radiation and Photovoltaics","score":0.26339998841285706,"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/T10905","display_name":"Solar Thermal and Photovoltaic Systems","score":0.006399999838322401,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/solar-panel-efficiency","display_name":"solar panel efficiency","score":0.7419999837875366},{"id":"https://openalex.org/keywords/crystalline-silicon-photovoltaic-modules","display_name":"crystalline silicon modules","score":0.8140000104904175},{"id":"https://openalex.org/keywords/energy-yield-estimation","display_name":"energy yield prediction","score":0.8180000185966492},{"id":"https://openalex.org/keywords/yield-simulation","display_name":"yield simulation","score":0.5649999976158142},{"id":"https://openalex.org/keywords/temperature-normalization","display_name":"temperature normalization","score":0.531000018119812}],"concepts":[{"id":"https://openalex.org/C183115368","wikidata":"https://www.wikidata.org/wiki/Q856577","display_name":"Weighting","level":2,"score":0.5759999752044678},{"id":"https://openalex.org/C46423501","wikidata":"https://www.wikidata.org/wiki/Q830654","display_name":"Irradiance","level":2,"score":0.5559999942779541},{"id":"https://openalex.org/C41291067","wikidata":"https://www.wikidata.org/wiki/Q1897785","display_name":"Photovoltaic system","level":2,"score":0.4584999978542328},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4553999900817871},{"id":"https://openalex.org/C48921125","wikidata":"https://www.wikidata.org/wiki/Q10861030","display_name":"Linear regression","level":2,"score":0.3643999993801117},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.3521000146865845},{"id":"https://openalex.org/C114289077","wikidata":"https://www.wikidata.org/wiki/Q3284399","display_name":"Statistical model","level":2,"score":0.3458999991416931},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3276999890804291},{"id":"https://openalex.org/C519991488","wikidata":"https://www.wikidata.org/wiki/Q28865","display_name":"Python (programming language)","level":2,"score":0.3257000148296356},{"id":"https://openalex.org/C2742236","wikidata":"https://www.wikidata.org/wiki/Q924713","display_name":"Efficient energy use","level":2,"score":0.31279999017715454},{"id":"https://openalex.org/C195065555","wikidata":"https://www.wikidata.org/wiki/Q214881","display_name":"Curvature","level":2,"score":0.3043999969959259},{"id":"https://openalex.org/C188198153","wikidata":"https://www.wikidata.org/wiki/Q1613840","display_name":"Limiting","level":2,"score":0.3001999855041504},{"id":"https://openalex.org/C130066347","wikidata":"https://www.wikidata.org/wiki/Q680509","display_name":"Spectroradiometer","level":3,"score":0.29989999532699585},{"id":"https://openalex.org/C133199616","wikidata":"https://www.wikidata.org/wiki/Q25386885","display_name":"Empirical modelling","level":2,"score":0.2915000021457672},{"id":"https://openalex.org/C152877465","wikidata":"https://www.wikidata.org/wiki/Q208042","display_name":"Regression analysis","level":2,"score":0.2858999967575073},{"id":"https://openalex.org/C163175372","wikidata":"https://www.wikidata.org/wiki/Q3339222","display_name":"Linear model","level":2,"score":0.2745000123977661},{"id":"https://openalex.org/C200601418","wikidata":"https://www.wikidata.org/wiki/Q2193887","display_name":"Reliability engineering","level":1,"score":0.2680000066757202},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.2662000060081482},{"id":"https://openalex.org/C27438332","wikidata":"https://www.wikidata.org/wiki/Q2873","display_name":"Principal component analysis","level":2,"score":0.26019999384880066},{"id":"https://openalex.org/C21080849","wikidata":"https://www.wikidata.org/wiki/Q13611879","display_name":"Data point","level":2,"score":0.257099986076355},{"id":"https://openalex.org/C541104983","wikidata":"https://www.wikidata.org/wiki/Q40015","display_name":"Solar energy","level":2,"score":0.2551000118255615},{"id":"https://openalex.org/C83546350","wikidata":"https://www.wikidata.org/wiki/Q1139051","display_name":"Regression","level":2,"score":0.2547999918460846}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.52825/siliconpv.v4i.3448","doi":"https://doi.org/10.52825/siliconpv.v4i.3448","is_oa":true,"landing_page_url":"https://doi.org/10.52825/siliconpv.v4i.3448","pdf_url":"https://www.tib-op.org/ojs/index.php/siliconpv/article/download/3448/3751","source":{"id":"https://openalex.org/S5407036457","display_name":"SiliconPV Conference Proceedings","issn_l":"2940-2123","issn":["2940-2123"],"is_oa":true,"is_in_doaj":true,"is_core":false,"listed_in":["ddh","doaj"],"host_organization":"https://openalex.org/P4404678057","host_organization_name":"TIB Open Publishing","host_organization_lineage":["https://openalex.org/P4404678057"],"host_organization_lineage_names":["TIB Open Publishing"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"SiliconPV Conference Proceedings","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:372f34663945485f86e8777c963c3d64","doi":null,"is_oa":false,"landing_page_url":"https://doaj.org/article/372f34663945485f86e8777c963c3d64","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":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"SiliconPV Conference Proceedings, Vol 4 (2026)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.52825/siliconpv.v4i.3448","doi":"https://doi.org/10.52825/siliconpv.v4i.3448","is_oa":true,"landing_page_url":"https://doi.org/10.52825/siliconpv.v4i.3448","pdf_url":"https://www.tib-op.org/ojs/index.php/siliconpv/article/download/3448/3751","source":{"id":"https://openalex.org/S5407036457","display_name":"SiliconPV Conference Proceedings","issn_l":"2940-2123","issn":["2940-2123"],"is_oa":true,"is_in_doaj":true,"is_core":false,"listed_in":["ddh","doaj"],"host_organization":"https://openalex.org/P4404678057","host_organization_name":"TIB Open Publishing","host_organization_lineage":["https://openalex.org/P4404678057"],"host_organization_lineage_names":["TIB Open Publishing"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"SiliconPV Conference Proceedings","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","score":0.875,"display_name":"Affordable and clean energy"}],"study_designs":[],"awards":[{"id":"https://openalex.org/G9000701161","display_name":"Verbundvorhaben: BuKuMu - Kostensenkung bei der Solarstromproduktion - Silbereinsparung durch busbarlose, Kupfer-metallisierte Multi-Wire Solarmodule, Teilvorhaben: Erweiterte Charakterisierung von Solarmodulen in Au\u00dfenmessungen unter Anwendung von neu-entwickelten Mess- und Auswerteverfahren","funder_award_id":"03EE1225F","funder_id":"https://openalex.org/F4320323803","funder_display_name":"Bundesministerium f\u00fcr Wirtschaft und Energie"}],"funders":[{"id":"https://openalex.org/F4320323803","display_name":"Bundesministerium f\u00fcr Wirtschaft und Energie","ror":"https://ror.org/02vgg2808"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7208710099.pdf","grobid_xml":"https://content.openalex.org/works/W7208710099.grobid-xml"},"referenced_works_count":4,"referenced_works":["https://openalex.org/W1994514760","https://openalex.org/W2560913958","https://openalex.org/W2753713112","https://openalex.org/W4392672654"],"related_works":["https://openalex.org/W2069202910","https://openalex.org/W4296273012","https://openalex.org/W2163319227","https://openalex.org/W7159785742","https://openalex.org/W1982018474","https://openalex.org/W2203492866","https://openalex.org/W2744691185","https://openalex.org/W2153565170","https://openalex.org/W2147777774","https://openalex.org/W2753713112"],"abstract_inverted_index":{"Accurate":[0],"photovoltaic":[1],"module":[2,37],"performance":[3,153],"prediction":[4],"under":[5],"low-light":[6],"conditions":[7],"remains":[8],"challenging":[9],"for":[10,133],"energy":[11],"yield":[12,199,211],"estimation,":[13],"especially":[14],"in":[15,177],"Northern":[16],"Europe":[17],"where":[18],"over":[19],"50%":[20],"of":[21,102,213],"annual":[22],"irradiance":[23,42],"falls":[24],"below":[25,157],"400":[26],"W/m\u00b2.":[27],"We":[28,113,182],"present":[29],"a":[30,115,166,184],"three-parameter":[31],"beta-fit":[32,206],"model":[33,49],"that":[34,188],"characterizes":[35],"non-linear":[36,128],"efficiency":[38,60],"across":[39,201],"the":[40,51,57,64,71,134,205],"full":[41,239],"spectrum":[43],"using":[44,54,141],"compact":[45],"empirical":[46,55],"descriptors.":[47],"The":[48,228],"describes":[50],"low-irradiance":[52,104],"response":[53,73],"parameters:":[56],"limiting":[58],"relative":[59,217],"loss":[61],"\u03b1":[62,80,84],"and":[63,81,85,126],"curvature":[65],"parameter":[66],"\u03b2.":[67,82],"Near":[68],"reference":[69],"irradiance,":[70],"first-order":[72],"is":[74],"primarily":[75],"determined":[76],"by":[77],"their":[78],"product,":[79],"Accordingly,":[83],"\u03b2":[86],"should":[87],"be":[88],"interpreted":[89],"jointly,":[90],"rather":[91],"than":[92],"as":[93],"independent":[94],"physical":[95,196],"measures.":[96],"This":[97],"approach":[98,207],"enables":[99],"meaningful":[100],"comparisons":[101],"fitted":[103],"responses":[105],"among":[106],"modules":[107,150],"when":[108,238],"equivalent-circuit":[109,241],"parameters":[110],"are":[111,243],"unavailable.":[112],"developed":[114],"comprehensive":[116],"Python":[117],"analysis":[118],"toolchain":[119],"with":[120,130,154,222],"robust":[121],"statistical":[122,185],"filtering,":[123],"temperature":[124],"normalization,":[125],"constrained":[127],"regression":[129],"optional":[131],"weighting":[132],"critical":[135],"100\u2013400":[136],"W/m\u00b2":[137],"range.":[138],"Field":[139],"validation":[140],"long-term":[142],"outdoor":[143,190],"monitoring":[144],"data":[145,191],"from":[146],"commercial":[147],"crystalline":[148],"silicon":[149],"demonstrates":[151],"excellent":[152],"root-mean-square":[155],"errors":[156],"0.5%":[158,216],"absolute":[159],"efficiency.":[160],"An":[161],"extended":[162],"four-parameter":[163],"formulation":[164],"incorporating":[165],"high-irradiance":[167],"correction":[168],"term":[169],"(\u03b3)":[170],"addresses":[171],"systematic":[172],"deviations":[173],"which":[174],"were":[175],"found":[176],"controlled":[178],"laboratory":[179],"flash":[180],"measurements.":[181],"implemented":[183],"binning":[186],"method":[187],"reduces":[189],"scatter":[192],"while":[193,245],"preserving":[194],"underlying":[195],"behavior.":[197],"Comparative":[198],"simulations":[200],"European":[202],"locations":[203],"reveal":[204],"can":[208],"produce":[209],"estimated":[210],"differences":[212,224],"up":[214],"to":[215,218],"conventional":[219],"linear":[220],"assumptions,":[221],"larger":[223],"at":[225],"higher":[226],"latitudes.":[227],"methodology":[229],"requires":[230],"only":[231],"standard":[232],"input":[233],"data,":[234],"making":[235],"it":[236],"practical":[237],"manufacturer":[240],"specifications":[242],"unavailable,":[244],"providing":[246],"standardized":[247],"parameters.":[248]},"counts_by_year":[],"updated_date":"2026-10-06T10:28:23.643775","created_date":"2026-09-05T00:00:00"}