Reply to Comment on 'Non-equilibrium thermodynamics of light absorption' Geza Meszena, Hans V. Westerhoff and O. Somsen Journal of Physics A:Mathematics and General 33: 1301-1303 (2000) Abstract In response to the comments made by Dr Andrews, we explain why his arguments support rather than compromise the analysis published in our recent paper. Our thermodynamical description of the early steps of photosynthesis is consistent both with the established theory of quantum electrodynamics and with the known biophysics of the process. Moreover, it ties in with the non-equilibrium thermodynamics of chemical processes.