  The calculation of time-dependent charge and energy currents in nanoscale
systems is a challenging task. Nevertheless it is crucial for gaining a deep
understanding of the relevant processes at the nanoscale. We extend the
auxiliary-mode approach for time-dependent charge transport to allow for the
calculation of energy currents for arbitrary time-dependencies. We apply the
approach to two illustrative examples, a single-level system and a benzene
ring, demonstrating its usefulness for a wide-range of problems beyond simple
toy models, such as molecular devices.
