Great question! The studies do consider the spatio-temporal distribution of generation and demand. Here's a recent paper [1] that develops roadmaps for 145 countries and has infographics with links to additional resources.
I found the source code for the LOADMATCH model [2] used in the studies which can run on a laptop. You can email Mark about data, source code for the GATOR-GCMOM model [3], and advice on running it.
And here's a talk [4] he gave on the topic at NASA Ames Research Center a few years back.