?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=A+critical+comparison+of+methods+to+estimate+solar+rooftop+photovoltaic%0D%0Apotential+in+Switzerland&rft.creator=Walch%2C+Alina&rft.creator=Mohajeri%2C+Nahid&rft.creator=Scartezzini%2C+Jean-Louis&rft.description=To+understand+the+opportunities+and+challenges+of+large+shares+of+solar+photovoltaics+(PV)+in+our+electricity+mix%2C+various+large-scale+studies+of+PV+potential+on+building+roofs+have+been+conducted+in+recent+years.+The+use+of+different+datasets%2C+methods+and+spatio-temporal+resolutions+leads+to+widely+varying+results%2C+making+a+comparison+across+different+studies+intrinsically+difficult.+In+this+work%2C+six+studies+carried+out+in+Switzerland+are+compared+in+a+quantitative+way%2C+in+order+to+understand+how+different+methods+impact+the+potential+estimates.+We+observe+a+strong+trend+towards+increasing+spatial+and+temporal+resolutions%2C+using+larger+and+more+accurate+datasets+for+the+analysis.+While+the+earliest+study+relies+on+rules+of+thumb%2C+later+studies+use+data-driven+estimations%2C+enabled+by+the+use+of+Machine+Learning%2C+scalable+algorithms+and+powerful+computational+engines.+Our+analysis+shows+that+the+largest+differences+are+caused+by+the+source+of+the+solar+radiation+input+data%2C+the+computation+of+shading+effects+on+rooftops+and+the+estimation+of+available+roof+area+for+PV+panel+installation.+The+latter+is+the+most+uncertain+parameter+in+the+presented+studies+and+offers+opportunities+for+future+work.&rft.publisher=IOP+Publishing&rft.date=2019&rft.type=Proceedings+paper&rft.language=eng&rft.source=+++++In%3A++Journal+of+Physics%3A+Conference+Series.++(pp.+012035).++IOP+Publishing%3A+Bristol%2C+UK.+(2019)+++++&rft.format=text&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10200261%2F1%2FWalch_2019_J._Phys.__Conf._Ser._1343_012035.pdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10200261%2F&rft.rights=open