  We study the non-interacting time-dependent resonant level model mimicking a
driven quantum dot connected through leads to two electronic reservoirs held at
different temperatures and electrochemical potentials. Using a scattering
approach, we provide analytical formulas of the time-dependent particle
currents, heat currents, and input driving power under the wide-band limit
approximation. We also derive Landauer formulas for the corresponding
time-integrated quantities when the perturbation applied on the dot is of
finite duration. Then, we focus on the case of a single square pulse, benchmark
our analytical results against numerical ones that are valid beyond the
wide-band limit, and perform numerical simulations for a smooth square pulse
and a periodic square pulse train. Finally, we discuss whether the efficiency
of the device in a stationary Seebeck configuration can be enhanced by driving
the dot potential. We find numerically that the transient increase of the
efficiency observed in some cases is eventually cancelled out at long times.
