Jacobson and I discussed this in a podcast four years ago. Not sure if it was in the first or second half.

https://cleantechnica.com/2020/02/16/transitioning-the-world-to-100-renewable-energy/

https://cleantechnica.com/2020/02/17/transitioning-the-world-to-100-renewable-energy-part-2/

I might have covered it in one of the articles I wrote analyzing that year's version of his global study.

https://cleantechnica.com/2019/12/20/100-wws-part-1-jacobsons-new-study-displaces-99-7-fossil-energy-with-massive-savings/

https://cleantechnica.com/2019/12/20/100-wws-part-2-jacobsons-latest-study-covers-storage-transmission-more/

We agree strongly that it will be a big wedge. The difference is 15% vs 5% to 8%.