Zimmermann, F. Apollonio, A. Benedikt, M. Brunner, O. Funakoshi, Y. Milardi, C. Myers, S. Niemi, A. Oide, K. Qin, Q. Seeman, J.T. Wenninger, J. JACoW Publishing Geneva, Switzerland 978-3-95450-216-5 10.18429/JACoW-eeFACT2018-WEPAB03 English 269-275 WEPAB03 luminosity operation collider cryomodule injection Contribution to a conference proceedings 2019 2019-04 https://doi.org/10.18429/JACoW-eeFACT2018-WEPAB03 http://jacow.org/eefact2018/papers/wepab03.pdf This document discusses the machine parameters and expected luminosity performance for the proposed future circular lepton collider FCC-ee. Particular emphasis is put on availability, physics run time, and efficiency. Key performance assumptions are compared with the operational experience of several past and present colliders including their injectors - LHC, LEP/LEP-2, PEP-II, KEKB, BEPCII, DAΦNE, SLC and the SPS complex.