Kolmogorov spectrum of renewable wind and solar power fluctuationsM. Reza Rahimi Tabar, M. Anvari, G. Lohmann, D. Heinemann, M. Wächter, P. Milan, E. Lorenz and Joachim PeinkeEur. Phys. J. Special Topics, 223 12 (2014) 2637-2644DOI: https://doi.org/10.1140/epjst/e2014-02217-8