  Observations of the solar corona and the solar wind discover that the solar
wind is unsteady and originates from the impulsive events near the surface of
the Sun's atmosphere. How solar coronal activities affect the properties of the
solar wind is a fundamental issue in heliophysics. We report a simulation and
theoretical investigation of how nanoflare accelerated electron beams affect
the kinetic-scale properties of the solar wind and generate coherent radio
emission. We show that nanoflare-accelerated electron beams can trigger a
nonlinear electron two stream instability, which generates kinetic Alfv\'en and
whistler waves, as well as a non-Maxwellian electron velocity distribution
function, consistent with observations of the solar wind. The plasma coherent
emission produced in our model agrees well with the observations of Type III, J
and V solar radio bursts. Open questions in the kinetic solar wind model are
also discussed.
