  We consider a molecular junction immersed in a solvent where the electron
transfer is dominated by Marcus-type steps. However, the successive nature of
the charge transfer through the junction does not imply that the solvent reach
thermal equilibrium throughout the transport. In our previous work
\cite{kir2020} we have determined the nonequilibrium distribution of the
solvent where its dynamics, expressed by a friction, is considered in two
limiting regimes of fast and slow solvent relaxation. In dependence of the
nonequilibrium solvent dynamics, we investigate now the electrical, thermal and
thermoelectric properties of the molecular junction. We show that by suitable
tuning the friction, we can reduce the heat dissipation into the solvent and
enhance the heat transfer between the electrodes. Interestingly, we find that
the Seebeck coefficient grows significantly by adapting the solvent friction in
both regimes.
