  We report the inclusion of phonon scattering to our recently established
numerical package QmeQ for transport in quantum dot systems. This enables
straightforward calculations for a large variety of devices. As examples we
show (i) transport in a double-dot structure, where energy relaxation is
crucial to match the energy difference between the levels, and (ii) the
generation of electrical power by contacting cold electric contacts with
quantum dot states, which are subjected to heated phonons.
