Under CopyrightMaurer, ChristophChristophMaurerSmyth, M.M.Smyth2022-03-1318.8.20172017https://publica.fraunhofer.de/handle/publica/39755610.24406/publica-fhg-397556This paper presents a general methodology to evaluate the economic benefits of building-integrated solar thermal systems (BIST). It defines cost categories, which are useful to compare variants of building envelopes on different levels of detail. Additionally, five general challenges for accurate economic evaluation of BISTS are presented including a discussion on recommendations.enthermische AnlageGebäudetechnikbuilding-integrated photovoltaic thermal (BIPVT)building integrated solar thermal systems (bist)solar building envelopesSolarthermieGebäudeenergietechnikThermische Kollektoren und KomponentenGebäudehülleBetriebsführungGesamtenergiekonzept621697conference paper