Back in 2016, we modeled the internal dynamics of such a global energy transition, built on scalable renewables (mostly wind and solar power \cite{Teske_2019}). One must not forget that, especially in the early stages of the transition (because of replacing stocks with flows) one must "put aside seed energy" for the capital intensive energy investments of renewables. This adds an additional burden to the energy transition. However, we found that the necessary 50-fold increase when compared to today's investment rates into renewables was plausible and thus, an energy transition with current technologies, feasible \cite{Sgouridis_2016}. If these condition are met, all societal energy needs are met during and after such a transition, which would make it a sustainable energy transition (SET) \cite{Sgouridis_2014}. However, the internal energy requirement of a SET (and thus, the net energy available to society) depends on the EROEI of the energy sources and fuels involved. Therefore in building out the energy system for a given geographic region, the optimal sequence would be to start from systems with higher EROEI. EROEI is the ratio of energy output, which depends on the converter efficiency and the resource quality, over the energy input, which in turn depends on the energetic investments to manufacture, install and operate the renewable energy system \cite{Kubiszewski_2010}.