  In this paper we present a new Monte Carlo event generator ReneSANCe for
simulation of processes at electron-positron colliders. In the current release
of the generator the Bhabha scattering ($e^+e^- \to e^-e^+$) and
Higgs-strahlung ($e^+e^- \to ZH$) process are implemented. Based on the SANC
(Support for Analytic and Numeric Calculations for experiments at colliders)
modules, the new generator takes into account complete one-loop and some
higher-order electroweak radiative corrections with finite particle masses and
polarizations. The new generator effectively operates in the collinear region
and at the $ZH$ production threshold. It is constructed in such a way that new
processes can be easily added. The paper contains a theoretical description of
the SANC approach, numerical validations and manual.
